Method and system for accelerated degradation evaluation of quartz glass under multi-source irradiation

Abstract

The application provides a quartz glass multi-source irradiation accelerated degradation evaluation method and system, and relates to the technical field of optical material irradiation. The method comprises the following steps: classifying to-be-tested quartz glass samples, and respectively performing baseline characterization on different types of to-be-tested quartz glass samples to obtain initial state vectors; constructing an equivalent time sequence loading path according to the multi-source coupling environment of the to-be-tested quartz glass samples in real space service conditions; sequentially applying gamma ray irradiation and high-repetition-frequency laser irradiation to the to-be-tested quartz glass samples according to the equivalent time sequence loading path, and performing intermediate multi-modal characterization on the to-be-tested quartz glass samples at intermediate nodes in the equivalent time sequence loading path to obtain intermediate multi-modal vectors; constructing equivalent coupling damage factors and joint failure criteria based on the initial state vectors and the intermediate multi-modal vectors; and obtaining degradation evaluation results of the to-be-tested quartz glass samples under real space service conditions based on the equivalent coupling damage factors and the joint failure criteria.

Description

Technical Field

[0001] This invention relates to the field of optical material irradiation technology, and in particular to a method and system for assessing accelerated degradation of quartz glass by multi-source irradiation. Background Technology

[0002] In recent years, with the rapid development of space missions such as high-power space laser payloads, spaceborne imaging, and Earth exploration, space optical systems have placed higher demands on the irradiation stability and service reliability of key optical materials such as quartz glass. Furthermore, traditional methods suffer from fragmented testing processes, limited characterization techniques, and a lack of equivalent calibration, often requiring significant time and cost to obtain limited degradation data. This makes it difficult to meet the engineering requirements of next-generation space laser systems and protective optical components for efficient, accurate service evaluation and rapid screening.

[0003] Chinese Patent CN115933016B discloses a method for enhancing the laser damage threshold of a chemical film through gamma irradiation. The method includes: first, irradiating the chemical film sample with different doses of gamma rays; then, measuring the hardness and laser damage threshold of the chemical film under different irradiation doses to obtain irradiation dose-hardness and irradiation dose-laser damage threshold relationship curves, thereby determining the optimal dose required for chemical film irradiation; finally, using the optimal irradiation dose to perform gamma irradiation hardening treatment on the chemical film using the same process. However, the above scheme only optimizes the relationship between a single gamma irradiation and the laser damage threshold of the chemical film, without considering the degradation process under the synergistic effect of multiple irradiation sources. This makes it difficult to accurately reflect the failure mechanism of quartz glass materials in complex space irradiation environments, resulting in insufficient accuracy of degradation assessment results. Therefore, it is essential to provide an accelerated degradation assessment method and system for quartz glass using multi-source irradiation to improve the accuracy of optical material degradation assessment results. Summary of the Invention

[0004] In view of this, the present invention proposes an accelerated degradation assessment method and system for quartz glass by multi-source irradiation, which helps to improve the accuracy of degradation assessment results for optical materials.

[0005] This invention provides a method for assessing accelerated degradation of quartz glass under multi-source irradiation, the method comprising: The quartz glass samples to be tested are classified, and baseline characterization is performed on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested. Based on the multi-source coupling environment of the quartz glass sample under real space service conditions, an equivalent time-series loading path corresponding to the multi-source coupling environment is constructed. The multi-source coupling environment includes gamma ray irradiation, high repetition rate laser irradiation, vacuum conditions, and thermal cycling conditions. According to the equivalent temporal loading path, the quartz glass sample under test is sequentially irradiated with gamma rays and high repetition rate laser irradiation, and intermediate multimodal characterization is performed on the quartz glass sample under test at the intermediate node in the equivalent temporal loading path to obtain the intermediate multimodal vector. Based on the initial state vector and the intermediate multimodal vector, an equivalent coupled damage factor and a joint failure criterion are constructed. Based on the equivalent coupled damage factor and the joint failure criterion, the degradation evaluation results of the quartz glass sample under test under real space service conditions are obtained.

[0006] Based on the above technical solution, preferably, the step of classifying the quartz glass samples to be tested and performing baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested specifically includes: All quartz glass samples to be tested were classified according to hydroxyl content and chlorine content. Each quartz glass sample to be tested was classified into any one of low-hydroxyl quartz glass, high-hydroxyl quartz glass, and chlorine-containing quartz glass. Each type of quartz glass sample to be tested had a unique code, and the corresponding components, hydroxyl content, chlorine content, preparation process, size, and processing history of each quartz glass sample to be tested were recorded. Baseline characterization was performed on each quartz glass sample to be tested, and the transmittance and weak absorption coefficient of the quartz glass sample to be tested at the target working wavelength, the initial point defect comprehensive quantity inverted by electron paramagnetic resonance test, the 3-4 member ring structure parameters obtained by Raman spectroscopy, the void structure parameters obtained by positron annihilation test, and the laser damage threshold were obtained. The transmittance, the weak absorption coefficient, the initial point defect comprehensive quantity, the 3-4 member ring structure parameters, the void structure parameters, and the laser damage threshold are normalized and vectorized to construct the initial state vector of the quartz glass sample to be tested.

[0007] Based on the above technical solutions, preferably, the step of constructing an equivalent temporal loading path corresponding to the multi-source coupling environment of the quartz glass sample under test in real space service conditions specifically includes: The multi-source coupling environment under real space service conditions is divided into three loading stages in the time dimension: the first gamma irradiation stage, the high repetition rate laser irradiation stage, and the gamma irradiation supplementation stage. A vacuum loading stage and / or a thermal cycling loading stage are inserted between the first gamma irradiation stage and the high repetition rate laser irradiation stage. The total gamma dose, gamma dose rate, and loading duration are calibrated for the first gamma irradiation stage and the gamma irradiation supplementation stage, respectively. The laser repetition frequency, single pulse energy density, number of pulses, and loading duration are calibrated for the high repetition rate laser irradiation stage. The vacuum holding time is calibrated for the vacuum loading stage. The number of thermal cycles is calibrated for the thermal cycling loading stage, so as to form an equivalent timing loading path.

[0008] More preferably, the intermediate node in the equivalent temporal loading path performs intermediate multimodal characterization on the quartz glass sample to be tested to obtain an intermediate multimodal vector, specifically including: At each intermediate node, the loading of the multi-source coupling environment is paused, and the quartz glass sample to be tested is taken out. The quartz glass sample to be tested is then subjected to transmission spectroscopy, electron paramagnetic resonance, Raman spectroscopy, and positron annihilation tests in sequence to obtain the transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, and void structure parameters of the quartz glass sample to be tested at the intermediate node. The transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, void structure parameters, and laser damage threshold obtained at each intermediate node are normalized and vectorized to form an intermediate multimodal vector corresponding to the intermediate node.

[0009] More preferably, the intermediate nodes in the equivalent timing loading path include a first intermediate node located between the first gamma irradiation stage and the high repetition rate laser irradiation stage, and a second intermediate node located within the high repetition rate laser irradiation stage.

[0010] More preferably, the step of constructing the equivalent coupled damage factor and joint failure criterion based on the initial state vector and the intermediate multimodal vector specifically includes: Based on the initial state vector and each intermediate multimode vector, the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters and laser damage threshold corresponding to the target working wavelength are extracted, and the parameter changes of the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters and laser damage threshold corresponding to each intermediate multimode vector relative to the initial state vector are calculated. The changes in each parameter are normalized and weighted by preset weights to obtain the equivalent coupled damage factor characterizing the degree of comprehensive degradation of multi-source irradiation and the joint failure criterion characterizing the comprehensive impact.

[0011] More preferably, the degradation evaluation result of the tested quartz glass sample under real space service conditions based on the equivalent coupled damage factor and the joint failure criterion specifically includes: The equivalent coupling damage factor corresponding to each node is calculated at the first intermediate node, the second intermediate node, and the final state node in the equivalent time-series loading path, so as to obtain the changing trend of the equivalent coupling damage factor of each node at different stages. The changing trend characterizes the degree of weak absorption recovery and defect evolution behavior of the quartz glass sample under test under real space service conditions. The joint failure criterion corresponding to the final state node is compared with the preset degradation threshold. When the joint failure criterion is less than the preset degradation threshold, the quartz glass sample to be tested is determined to be degraded effectively. When the combined failure criterion is greater than or equal to the preset degradation threshold, the quartz glass sample to be tested is determined to be degraded and failed.

[0012] A second aspect of this application provides an accelerated degradation assessment system for quartz glass subjected to multi-source irradiation. The accelerated degradation assessment system includes a baseline characterization module, a data processing module, and a degradation assessment module, wherein... The baseline characterization module is used to classify the quartz glass samples to be tested and to perform baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested. The data processing module is used to construct an equivalent temporal loading path corresponding to the multi-source coupling environment of the quartz glass sample under test in real space service conditions. The multi-source coupling environment includes gamma-ray irradiation, high-repetition-rate laser irradiation, vacuum conditions, and thermal cycling conditions. According to the equivalent temporal loading path, gamma-ray irradiation and high-repetition-rate laser irradiation are applied to the quartz glass sample under test in sequence. At the intermediate nodes in the equivalent temporal loading path, intermediate multimodal characterization is performed on the quartz glass sample under test to obtain intermediate multimodal vectors. Based on the initial state vector and the intermediate multimodal vectors, an equivalent coupling damage factor and a joint failure criterion are constructed. The degradation assessment module is used to obtain the degradation evaluation results of the quartz glass sample under test under real space service conditions based on the equivalent coupled damage factor and the joint failure criterion.

[0013] A third aspect of this application provides an electronic device including a processor, a memory, a user interface, and a network interface, wherein the memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory.

[0014] A fourth aspect of this application provides a non-transitory computer-readable storage medium having a computer program stored thereon, the computer program being executed by a processor to implement the steps of an accelerated degradation assessment method for multi-source irradiation of quartz glass.

[0015] The accelerated degradation assessment method and system for quartz glass provided by this invention has the following advantages over the prior art: (1) By constructing a multi-source coupling environment and an equivalent time-series loading path, real space conditions such as gamma irradiation, high-repetition-rate laser, vacuum, and thermal cycling are organically coupled in ground tests. This can more realistically reproduce the damage evolution process of quartz glass under space service conditions, avoiding evaluation bias caused by single factors or simplified conditions. By utilizing multi-source irradiation sequential loading and strengthening conditions, accelerated equivalence of long-term space service damage can be achieved, obtaining degradation results equivalent to long-term service in a shorter time. Furthermore, an initial state vector is formed through baseline characterization, and multimodal characterization is carried out at each intermediate node of the loading path to construct intermediate multimodal vectors, which can continuously characterize the damage. The evolution of material states at different damage stages is studied, and based on this, an equivalent coupled damage factor and a joint failure criterion are constructed. This transforms degradation assessment from empirical / qualitative judgment to quantitative evaluation based on vectors and factors, thereby improving the accuracy of degradation assessment results for optical materials. At the same time, the coupling effects of different irradiation and environmental factors on quartz glass are normalized into an equivalent coupled damage factor and joint failure criterion framework, which facilitates horizontal comparison of quartz glass with different formulations, processes, or structural forms. This provides a unified evaluation standard and quantitative basis for the selection, formulation optimization, and structural design of quartz glass materials for space applications, which is beneficial to improving the reliability of space optical systems.

[0016] (2) By dividing the multi-source coupling environment into a clear time sequence of first gamma irradiation, vacuum / thermal cycling, high repetition rate laser, and gamma supplementation, it is possible to more closely approximate the alternating irradiation and environmental action mode during actual on-orbit service, thereby improving the equivalence of ground tests to on-orbit conditions. Separating the gamma irradiation stage from the high repetition rate laser irradiation stage and inserting the vacuum / thermal cycling condition in between is beneficial for distinguishing the dominant effects of different stages on the generation, evolution, and accumulation of defects. The total gamma dose, dose rate, laser repetition frequency, single pulse energy density, number of pulses, vacuum holding time, and number of thermal cycles for each stage are calibrated, so that the equivalent time sequence loading path has clear quantitative parameters, which facilitates strict reproduction between different test batches and improves the comparability and statistical reliability of test results. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic flowchart of an accelerated degradation assessment method for quartz glass by multi-source irradiation provided by the present invention; Figure 2 A timing diagram of the multi-source timing loading path provided by the present invention; Figure 3 This is a schematic diagram of the experimental system corresponding to the accelerated degradation assessment method provided by the present invention; Figure 4 This is a schematic diagram of the Raman frequency shift of the GX sample under different irradiation doses provided by the present invention; Figure 5 Characterization graph of transmittance change of GX sample under vacuum heating-annealing at different temperatures provided by the present invention; Figure 6 A schematic diagram showing the transmittance changes of the three samples GX, Z05 and H03 provided for this invention under different irradiation doses; Figure 7 This is a schematic diagram of the accelerated degradation assessment system provided by the present invention; Figure 8 This is a schematic diagram of the structure of the electronic device provided by the present invention.

[0019] Explanation of reference numerals in the attached figures: 1. Accelerated degradation assessment system; 11. Baseline characterization module; 12. Data processing module; 13. Degradation assessment module; 2. Electronic device; 21. Processor; 22. Communication bus; 23. User interface; 24. Network interface; 25. Memory. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, this invention discloses a method for assessing accelerated degradation of quartz glass by multi-source irradiation, the method comprising steps S1 to S5.

[0022] Step S1: Classify the quartz glass samples to be tested and perform baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested. Step S2: Based on the multi-source coupling environment of the quartz glass sample under real space service conditions, construct the equivalent time-series loading path corresponding to the multi-source coupling environment. The multi-source coupling environment includes gamma ray irradiation, high repetition rate laser irradiation, vacuum conditions, and thermal cycling conditions. Step S3: Apply gamma irradiation and high repetition rate laser irradiation to the quartz glass sample under test sequentially according to the equivalent temporal loading path, and perform intermediate multimodal characterization on the quartz glass sample under test at the intermediate node in the equivalent temporal loading path to obtain the intermediate multimodal vector. Step S4: Based on the initial state vector and the intermediate multimodal vector, construct the equivalent coupled damage factor and joint failure criterion; Step S5: Based on the equivalent coupled damage factor and joint failure criterion, obtain the degradation evaluation results of the quartz glass sample under test under real space service conditions.

[0023] In this embodiment, by constructing a multi-source coupling environment and an equivalent temporal loading path, real space conditions such as gamma irradiation, high-repetition-rate laser, vacuum, and thermal cycling are organically coupled in ground tests. This allows for a more realistic reproduction of the damage evolution process of quartz glass under space service conditions, avoiding evaluation biases caused by single factors or simplified conditions. By utilizing multi-source irradiation sequential loading and strengthening conditions, accelerated equivalence of long-term space service damage is achieved, obtaining degradation results equivalent to long-term service in a shorter time. Furthermore, an initial state vector is formed through baseline characterization, and multimodal characterization is carried out at each intermediate node of the loading path to construct intermediate multimodal vectors, which can be continuously... By characterizing the state evolution of materials at different damage stages, and constructing equivalent coupled damage factors and joint failure criteria based on this, degradation assessment is transformed from empirical / qualitative judgment to quantitative evaluation based on vectors and factors. This improves the accuracy of degradation assessment results for optical materials. At the same time, the coupling effects of different irradiation and environmental factors on quartz glass are normalized into an equivalent coupled damage factor and joint failure criterion framework, which facilitates horizontal comparison of quartz glass with different formulations, processes, or structural forms. This provides a unified evaluation standard and quantitative basis for the selection, formulation optimization, and structural design of quartz glass materials for space applications, which is beneficial to improving the reliability of space optical systems.

[0024] Based on the above embodiments, as an optional embodiment, step S1, which involves classifying the quartz glass samples to be tested and performing baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested, may further include the following: Step S11: Classify all the quartz glass samples to be tested according to their hydroxyl content and chlorine content. Each quartz glass sample to be tested is classified into any one of the following: low-hydroxyl quartz glass, high-hydroxyl quartz glass, and chlorine-containing quartz glass. Each type of quartz glass sample to be tested has a unique code. Record the corresponding components, hydroxyl content, chlorine content, preparation process, size, and processing history of each quartz glass sample to be tested.

[0025] In this step, the quartz glass sample to be tested is preferably processed into a flat plate shape with a thickness of 1~10 mm and a surface roughness preferably not greater than 10 nm. Both sides of the quartz glass sample to be tested are polished. The number of quartz glass samples in each group is preferably not less than 5 pieces.

[0026] Step S12: Baseline characterization is performed on each quartz glass sample to be tested to obtain the transmittance and weak absorption coefficient of the quartz glass sample at the target working wavelength, the initial point defect comprehensive quantity inverted by electron paramagnetic resonance test, the 3-4 member ring structure parameters obtained by Raman spectroscopy, the void structure parameters obtained by positron annihilation test, and the laser damage threshold.

[0027] In this step, baseline characterization is performed on the sample before the loading test begins to obtain initial state parameters. Baseline characterization includes the following steps:

[0028] Measure the transmittance of the sample at the target wavelength, preferably in the range of 190–1100 nm, and record the transmittance at 1053 nm. ; Raman spectroscopy was used to test the characteristic peaks of 3-membered and 4-membered rings, and the peaks were recorded at 495 cm⁻¹. -1 and 606 cm -1 Obtain ring structure parameters by determining peak area or peak intensity. ; The intrinsic point defects, including the E' center, non-bridged oxygen-hole center (NBOHC), oxygen cathode (ODC), and peroxy defect, are measured using fluorescence, absorption, or electron paramagnetic resonance methods to obtain the comprehensive initial point defect quantity. ; The weak absorption coefficient of the sample at the target laser wavelength was measured using the photothermal weak absorption method to obtain the weak absorption coefficient. ; Optionally, infrared, positron annihilation, ellipsometric, or density measurements can be used to obtain information such as Si-O-Si bond angle characteristics, void structure parameters, refractive index, and absorption coefficient.

[0029] Step S13 involves normalizing and vectorizing the transmittance, weak absorption coefficient, initial point defect comprehensive quantity, 3-4 element ring structure parameters, void structure parameters, and laser damage threshold to construct the initial state vector of the quartz glass sample to be tested.

[0030] In this step, the above parameters are normalized to form the initial state vector of the sample. :

[0031] in, Indicates the void structure parameters, This represents the initial laser damage threshold.

[0032] Based on the above embodiments, as an optional embodiment, step S2, which involves constructing an equivalent temporal loading path corresponding to the multi-source coupling environment of the quartz glass sample under test in real space service conditions, may further include the following: Step S21 divides the multi-source coupling environment under real space service conditions into three loading stages in the time dimension: the first gamma irradiation stage, the high repetition rate laser irradiation stage, and the gamma irradiation supplementation stage.

[0033] Step S22: Insert a vacuum loading stage and / or a thermal cycling loading stage between the first gamma irradiation stage and the high repetition rate laser irradiation stage.

[0034] In this step, when it is necessary to simulate the outgassing behavior, surface state evolution, and defect relaxation process of quartz glass optical components under long-term vacuum environment, a vacuum holding stage is set after the first gamma irradiation stage, so that the sample is left to stand under high vacuum conditions for a certain period of time; when it is necessary to simulate the effect of temperature cycle fluctuations caused by orbital day-night alternation or attitude changes on material structure and stress field, a thermal cycling loading stage is set, and the orbital thermal environment is accelerated by repeatedly cycling up and down between preset upper and lower temperature limits.

[0035] The aforementioned vacuum loading stage and thermal cycling loading stage can be set separately or in combination. The preferred insertion position is between the first gamma irradiation stage and the high repetition rate laser irradiation stage. If necessary, it can also be inserted inside the high repetition rate laser irradiation stage according to the experimental design, so as to better reproduce the multiple environmental alternations and coupling effects during space service.

[0036] Step S23 involves calibrating the corresponding total gamma dose, gamma dose rate, and loading duration for the first gamma irradiation stage and the gamma irradiation supplementation stage, respectively; calibrating the corresponding laser repetition frequency, single pulse energy density, number of pulses, and loading duration for the high repetition rate laser irradiation stage; calibrating the corresponding vacuum holding time for the vacuum loading stage; and calibrating the corresponding number of thermal cycles for the thermal cycling loading stage, in order to form an equivalent timing loading path.

[0037] In this step, for the first gamma irradiation stage and the gamma irradiation supplementation stage, the corresponding total gamma dose, gamma dose rate, and loading duration for each stage are determined based on the cumulative dose level and dose rate distribution of the target orbit, respectively. This ensures that the cumulative dose and dose rate combination of the two gamma irradiation stages matches the long-term cumulative irradiation under real space service conditions in an equivalent sense. For the high-repetition-rate laser irradiation stage, the laser repetition frequency, single-pulse energy density, number of pulses, and loading duration are calibrated according to the typical operating mode and output parameters of the space laser payload to simulate the pulse energy input and thermomechanical stress cycle under real mission conditions. For the vacuum loading stage, appropriate vacuum levels and vacuum holding times are set to reflect the exposure time of the sample in the space vacuum environment. For the thermal cycling loading stage, upper and lower temperature limits, heating and cooling rates, and the number of thermal cycles are set to reproduce the cumulative effect of orbital temperature cycle changes on the material structure.

[0038] In this embodiment, by dividing the multi-source coupling environment into a clearly defined time sequence of first gamma irradiation, vacuum / thermal cycling, high-repetition-rate laser, and gamma supplementation, the alternating irradiation and environmental interaction patterns during actual on-orbit service can be more closely approximated, improving the equivalence of ground tests to on-orbit conditions. Separating the gamma irradiation stage from the high-repetition-rate laser irradiation stage and inserting a vacuum / thermal cycling condition in between helps to distinguish the dominant effects of different stages on defect generation, evolution, and accumulation. The total gamma dose, dose rate, laser repetition frequency, single-pulse energy density, number of pulses, vacuum holding time, and number of thermal cycles for each stage are calibrated, giving the equivalent time-series loading path clear quantitative parameters, facilitating rigorous reproducibility between different test batches, and improving the comparability and statistical reliability of test results.

[0039] Based on the above embodiments, as an optional embodiment, step S3, which involves performing intermediate multimodal characterization on the quartz glass sample under test at intermediate nodes in the equivalent temporal loading path to obtain intermediate multimodal vectors, may further include the following: At each intermediate node, the loading of the multi-source coupling environment is paused, and the quartz glass sample to be tested is removed. Transmission spectroscopy, electron paramagnetic resonance, Raman spectroscopy, and positron annihilation tests are performed on the quartz glass sample to be tested in sequence to obtain the transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, and void structure parameters of the quartz glass sample to be tested at the intermediate node. The transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, void structure parameters, and laser damage threshold obtained at each intermediate node are normalized and vectorized to form the intermediate multimodal vector corresponding to the intermediate node.

[0040] Among them, such as Figure 2As shown, the intermediate nodes in the equivalent timing loading path include a first intermediate node located between the first gamma irradiation stage and the high repetition rate laser irradiation stage, and a second intermediate node located inside the high repetition rate laser irradiation stage.

[0041] In one example, the quartz glass samples to be tested are divided into a reference group, a gamma single-source group, a laser single-source group, a multi-source timing group, and a real coupling verification group, with no fewer than 5 pieces in each group.

[0042] After the first gamma irradiation stage, the multi-source time-series samples were used to obtain the first intermediate state samples. Total gamma dose. Preferably, the amount is 1~500 Gy, more preferably 10~200 Gy. This step is used to induce the formation of space irradiation-related point defects, so that the quartz glass sample under test enters a damage precursor state that is closer to the early stage of actual service.

[0043] The first intermediate characterization of the first intermediate state sample should be performed, and at least the following parameters should be measured: Transmittance change at 1053 nm Changes in weak absorption coefficient Changes in the concentrations of defects such as E', NBOHC, and ODC and the changes in 3-4 member ring parameters .

[0044] If conditions permit, further measurements of changes in the void structure parameters will be taken. The intermediate characterization step is used to identify "intermediate defects" induced by space rays and to use them as input states for subsequent laser loading.

[0045] The first intermediate sample was then transferred to the high-repetition-rate laser irradiation stage. The implementation parameters for the high-repetition-rate laser irradiation are as follows: The wavelength is 1030~1064 nm, preferably 1053 nm; the repetition frequency is 1~100 kHz; the single pulse energy is 0.05~20 mJ; the number of pulses is... - The laser spot energy density can be set to 20%–95% of the initial damage threshold of the sample. Laser loading can be performed continuously or in a segmented pulse cluster manner to improve the ability to distinguish defects at different stages of expansion.

[0046] During the high-repetition-rate laser irradiation phase, the laser irradiation is paused after reaching the predetermined number of pulses for a second intermediate characterization. If the equivalent coupling damage factor reaches the set window, the current parameters are maintained and loading continues; if the set window is not reached, the number of laser pulses, repetition frequency, or gamma supplement dose is adjusted based on the feedback results.

[0047] Furthermore, vacuum, thermal cycling, or vacuum-thermal cycling treatment can be inserted between the first gamma irradiation stage and the high-repetition-rate laser irradiation stage, or during the inter-stage interval of the high-repetition-rate laser irradiation stage. Preferably, the vacuum holding time is 0.5–24 hours, and the number of thermal cycles is 1–100. This step is used to further approximate real-world space service conditions, or to improve acceleration efficiency while ensuring experimental controllability.

[0048] Based on the above embodiments, as an optional embodiment, step S4, which involves constructing the equivalent coupled damage factor and joint failure criterion based on the initial state vector and intermediate multimodal vector, may further include the following: Step S41: Based on the initial state vector and each intermediate multimode vector, extract the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters and laser damage threshold corresponding to the target working wavelength, and calculate the parameter changes of the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters and laser damage threshold corresponding to each intermediate multimode vector relative to the initial state vector. Step S42: Normalize the changes in each parameter and combine them with preset weights to obtain the equivalent coupled damage factor characterizing the degree of comprehensive degradation of multi-source irradiation and the joint failure criterion characterizing the comprehensive impact.

[0049] In this step, in order to correspond the timing loading results with the actual coupled operating conditions, the equivalent coupling damage factor is... It can be represented as:

[0050] in, This represents the change in the weak absorption coefficient. This represents the weak absorption coefficient during baseline characterization. This represents the weighting coefficient corresponding to the weak absorption coefficient. This represents the change in the overall quantity of point defects. This represents the total point defect quantity during baseline characterization. This represents the weighting coefficient corresponding to the total point defect quantity. This represents the change in the parameters of the ring structure. The parameters representing the ring structure during baseline characterization. This represents the weighting coefficients corresponding to the ring structure parameters. This represents the change in the parameters of the void structure. This represents the porosity structure parameters during baseline characterization. This represents the weighting coefficients corresponding to the void structure parameters. This represents the change in transmittance at the target operating wavelength. This represents the transmittance at the target operating wavelength during baseline characterization. This represents the weighting coefficient corresponding to transmittance. This represents the relative change in the laser damage threshold. This represents the laser damage threshold during baseline characterization. This represents the weighting coefficient corresponding to the laser damage threshold, satisfying... ; This is used to prevent extremely small positive numbers with a denominator of zero.

[0051] The above weighting coefficients to It can be determined by correlation analysis based on historical service samples or real coupled samples; or by principal component analysis, partial least squares regression or multiple regression methods; or by setting based on expert experience and comparative test results, and then optimizing through iterative calibration.

[0052] The failure criterion for this solution can be a single criterion or a combination of criteria: For a single criterion, it may include: the 1053 nm transmittance dropping below a preset threshold; or the laser damage threshold dropping below a certain percentage of the initial value; or the weak absorption coefficient increasing above a preset value; or the concentration of a certain type of critical defect exceeding the safety limit.

[0053] For joint criteria, joint invalidation criteria It can be represented as:

[0054] in, This indicates the relative importance weight of transmittance in the failure criterion. This represents the final transmittance at the target operating wavelength after the test. This indicates the relative importance weight of the weak absorption coefficient in the failure criterion. This represents the final-state weak absorption coefficient at the target operating wavelength after the experiment. This indicates the relative importance weight of the laser damage threshold in the failure criterion. This represents the final-state laser damage threshold at the target operating wavelength after the experiment. This indicates the relative importance weight of the comprehensive point defect quantity in the failure criterion. This represents the total defect quantity at the final state point at the target operating wavelength after the test.

[0055] In one example, an acceleration factor is also included. It can be represented as:

[0056] in, This indicates the service time equivalent to the target service scenario. This means that the method achieves the same result. The required test time.

[0057] Preferably, when the multi-source time-series samples and the real coupled verification samples meet the following conditions, the method is considered to have established a valid equivalence relationship:

[0058] and

[0059] or

[0060] in, This represents the equivalent coupling damage factor calculated for multi-source time-series samples. This represents the equivalent coupling damage factor obtained under real space service conditions or real coupling verification test conditions. This represents the final transmittance of the sample at the target operating wavelength after the multi-source time-series test. This represents the final transmittance of the verification sample at the target operating wavelength under real space service conditions or real coupling verification test conditions. This represents the final-state laser damage threshold of the sample after the multi-source time-series experiment. This indicates the final state laser damage threshold of the verification sample under real space service conditions or real coupling verification test conditions.

[0061] Based on the above embodiments, as an optional embodiment, step S5, which involves providing a degradation evaluation result of the quartz glass sample under real space service conditions based on the equivalent coupled damage factor and joint failure criterion, may further include the following: Step S51: The equivalent coupling damage factor corresponding to each node is calculated at the first intermediate node, the second intermediate node and the final state node in the equivalent time-series loading path, so as to obtain the changing trend of the equivalent coupling damage factor of each node at different stages. The changing trend characterizes the degree of weak absorption recovery and defect evolution behavior of the quartz glass sample under test under real space service conditions. Step S52: Compare the joint failure criterion corresponding to the final state node with the preset degradation threshold. When the joint failure criterion is less than the preset degradation threshold, the quartz glass sample to be tested is determined to be degraded effectively. Step S53: When the combined failure criterion is greater than or equal to the preset degradation threshold, the quartz glass sample to be tested is determined to be degraded and failed.

[0062] like Figure 3As shown, an experimental system corresponding to an accelerated degradation assessment method for quartz glass by multi-source irradiation is presented. This experimental system includes a sample carrying and positioning module, a gamma-ray irradiation module, a high-repetition-rate laser irradiation module, a selectable loading condition module, a multimodal detection module, and a data processing and control module. The sample carrying and positioning module is used to fix the quartz glass sample, ensuring that gamma irradiation, laser irradiation and characterization tests are carried out under the same coordinate reference; preferably, a sample tray or sample clamp with numbered markings and repeatable positioning reference holes is used.

[0063] The gamma irradiation module is used to apply gamma irradiation to a sample at a predetermined dose and dose rate. The total dose is preferably 1 to 1000 Gy, and the dose rate is preferably 0.1 to 100 Gy / h.

[0064] The high repetition rate laser irradiation module is used to apply high repetition rate laser irradiation to the sample. The laser wavelength is preferably 1030~1064 nm, more preferably 1053 nm; the repetition frequency is preferably 1~100 kHz; the pulse width is preferably 1 ps~100 ns; and the spot diameter is preferably 0.2~2.0 mm.

[0065] The optional environmental loading module is used to provide one or more of the following environments: vacuum environment, alternating heat environment, or humid heat environment, wherein the vacuum level is preferably... Pa, temperature range preferably to .

[0066] The multimodal detection module includes two or more of the following: transmission / absorption spectroscopy testing unit, Raman spectroscopy testing unit, fluorescence spectroscopy testing unit, and electron paramagnetic resonance testing unit; preferably, it further includes one or more of the following: photothermal weak absorption testing unit, infrared testing unit, positron annihilation testing unit, and ellipsometric testing unit.

[0067] The data processing and control module is used to collect test data at each stage, calculate defect evolution parameters, equivalent coupling damage factor and acceleration factor, and dynamically adjust subsequent loading conditions based on feedback results.

[0068] The above modules can be integrated into a single testing system or used as separate systems, achieving linkage through unified sample coding, positioning benchmarks, and data interfaces.

[0069] Furthermore, gamma rays can be replaced with other high-energy irradiation sources capable of inducing equivalent point defects, such as X-rays, electron beams, or neutron simulation irradiation, but gamma rays are the preferred option.

[0070] High repetition rate lasers can use wavelengths around 1030 nm, 1053 nm, or 1064 nm; the pulse width can be picosecond, nanosecond, or sub-nanosecond.

[0071] In the multimodal detection module, the photothermal weak absorption test unit can be replaced with other weak absorption characterization methods that can reflect the intensity of absorbent intermediate defects.

[0072] The weights of each item in the equivalent coupled damage factor can be recalibrated according to different application scenarios, and set separately for scenarios that prioritize transmittance, damage threshold, or lifetime.

[0073] One or more of the following can be inserted into the timing loading process: vacuum, thermal cycling, damp heat, and mechanical vibration, to adapt to different service environments. It must include at least a gamma irradiation step and a high-repetition-rate laser irradiation step; at least one baseline characterization and one intermediate characterization; at least two different physical mechanisms used to obtain defect or performance parameters; and an equivalent coupling damage factor or equivalent criterion for accelerated assessment.

[0074] In one example, based on the conditions of previous stage experiments, five samples each of low-hydroxyl, low-chlorine quartz glass GX (OH 50~100ppm, Cl <0.1ppm), high-hydroxyl, low-chlorine quartz glass Z05 (OH 1050–1100ppm, Cl <0.1ppm), and low-hydroxyl, high-chlorine quartz glass H03 (OH <1ppm, Cl 1000–1200ppm) were selected. The samples were subjected to 1150... After annealing at a high temperature for 10 hours to eliminate residual stress, the sample is machined into a circular lens with a diameter of 50 mm and a thickness of 8 mm, and then precision polished on both sides. Three types of samples represent low-hydroxyl, high-hydroxyl, and chlorine-containing systems, respectively, to verify the ability of the method of this invention to distinguish between different component systems.

[0075] Multi-source timing loading was performed on 3 pieces of each type of sample, with the loading conditions and test nodes as follows: Baseline: Transmittance tested at 1053 nm 1053 nm weak absorption coefficient E' center concentration retrieved by electron paramagnetic resonance (EPR) With NBOHC concentration Raman D1 / D2 ring structure characteristic quantities (in) Characterizing the ratio of ternary to quaternary rings), positron annihilation S-parameters Damage threshold with 1053 nm laser ; Intermediate state 1: Gamma irradiation kGy (dose rate 5 kGy / h) was used to obtain intermediate state 1, and the above multimodal characterization was repeated to obtain... ; Intermediate State 2: Based on Intermediate State 1, perform 300... C After a 10-hour isochronous heat treatment, intermediate state 2 was obtained, and the above multimodal characterization was repeated to obtain... ; Final state: Based on intermediate state 2, a 1053 nm laser pulse is applied, with a repetition frequency of 10 kHz, a single pulse energy of 2 mJ, and a total number of pulses. (Demonstration conditions, which can be adjusted according to platform capabilities), followed by final state multimodal characterization to obtain... .

[0076] For ease of quantification, this embodiment uses the comprehensive quantity of point defects. Defined as:

[0077] Among them, the E' center concentration retrieved by EPR With NBOHC concentration All units are cm -3 To be consistent with the definition of the equivalent coupling damage factor of this invention, this embodiment adopts the following incremental definition: ， ， ， and take .

[0078] The equivalent coupling damage factor uses weighting coefficients. to The values ​​are 0.25, 0.20, 0.15, 0.10, 0.15, and 0.15, respectively. The joint failure criterion uses weighted coefficients. to The values ​​are 0.30, 0.25, 0.40, and 0.05 respectively, and are taken as... As a threshold for lens damage assessment, the multimodal numerical results of the GX sample (low hydroxyl, low chlorine) are shown in Table 1.

[0079] Table 1

[0080] Therefore, the normalized increments of the GX sample in the final state are:

[0081]

[0082]

[0083] Substituting into the equivalent coupling damage factor expression of this scheme, we can obtain:

[0084] The joint failure criterion is:

[0085] because The GX sample was determined to be not failed but had entered a significant degradation range at the demonstration threshold, and can be used as a benchmark for subsequent process optimization and material screening. This indicates the preset degradation threshold.

[0086] Please see Figure 4 Raman spectroscopy was used to characterize the changes in the ring structure of quartz glass samples under different gamma irradiation doses. Figure 4 As shown in the figure, the horizontal axis represents the Raman displacement (cm). -1 The vertical axis represents the Raman scattering intensity (au), and Raman spectral curves are given under different cumulative gamma dose conditions, namely no irradiation, 10 kGy, 50 kGy, 100 kGy, 500 kGy and 1000 kGy.

[0087] from Figure 4 It can be seen that the unirradiated samples are at approximately 400-500 cm⁻¹ -1 There is a distinct main characteristic peak at 600–1200 cm⁻¹. -1 Several characteristic bands related to silicon-oxygen structural units such as ternary and quaternary rings are observed within the range. As the total gamma irradiation dose gradually increases from 10 kGy to 1000 kGy, the overall intensity of the Raman curves corresponding to each dose gradually decreases. The amplitudes of the main characteristic peak and the characteristic peaks in the mid-to-high wavenumber region all show a weakening trend. Some peak shapes are slightly broadened and the relative intensity is redistributed, indicating that the irradiation process causes the rearrangement and increased disorder of the ring structural units in the quartz glass network.

[0088] Please see Figure 5 To characterize the effect of heat treatment on the recovery behavior of irradiation damage centers, the transmittance changes of GX-type quartz glass samples irradiated with 500 kGy gamma were tested under different temperature ranges. The results are as follows: Figure 5 As shown in the figure, the horizontal axis represents wavelength (nm) and the vertical axis represents the change in transmittance (%). The transmittance change curves of the samples after heat treatment in four temperature ranges are given: 300~0℃, 400~300℃, 500~400℃, and 600~500℃.

[0089] Depend on Figure 5As can be seen, in the ultraviolet band of approximately 200–280 nm, all curves exhibit a clear positive transmittance change peak, indicating that appropriate heat treatment can play a certain role in decolorizing or restoring the irradiation-induced absorption centers. With the increase of the upper limit of the heat treatment temperature range, the amplitude of the positive transmittance change peak generally shows a trend of first increasing and then decreasing. The samples in the 400–300℃ and 500–400℃ ranges show the most significant increase in transmittance near approximately 210–240 nm. However, the curves after heat treatment in the 600–500℃ range are almost unchanged, indicating that excessively high heat treatment temperatures may lead to further structural rearrangement or the introduction of new defects, thereby weakening the effective restoration effect. These results demonstrate that by rationally selecting the heat treatment temperature range, the transmittance performance of quartz glass in the ultraviolet band can be restored to the maximum extent while maintaining the stability of the matrix structure.

[0090] The multimodal numerical results of sample Z05 (high hydroxyl, low chlorine) are shown in Table 2.

[0091] Table 2

[0092] The multimodal numerical results of sample H03 (low hydroxyl, high chlorine) are shown in Table 3. Table 3

[0093] The decision factors for the three types of samples are summarized in Table 4.

[0094] Table 4

[0095] It is evident that intermediate state 2 reflects the phased repair effect of heat treatment on defect states and weak absorption, while the final state of laser pulse loading will again drive the evolution of indicators such as weak absorption, defects, and damage threshold towards deterioration. The high-hydroxyl sample Z05 maintains relatively low levels even after the same irradiation, heat treatment, and laser loading. and The high-chlorine sample H03 showed a greater increase in weak absorption and defect indices, leading to and The significant increase and exceeding of the demonstration threshold verify the ability of the method of the present invention to distinguish different component systems under multimodal constraints.

[0096] Please see Figure 6 To compare the transmittance changes of quartz glasses with different formulations under gamma irradiation, the transmittance spectra of three samples—GX, Z05, and H03—were tested under different cumulative dose conditions. The results are as follows: Figure 6 As shown. Figure 6 (a) to Figure 6(c) shows the transmittance curves of GX, Z05 and H03 samples under cumulative gamma doses of no irradiation, 10 kGy, 50 kGy, 100 kGy, 500 kGy and 1000 kGy as a function of wavelength, where the horizontal axis is wavelength (nm) and the vertical axis is transmittance (%).

[0097] from Figure 6 It can be seen that all three quartz glass samples exhibit high transmittance in the visible and near-infrared band (approximately 300–800 nm), with transmittance approaching or exceeding 90% in the unirradiated state. With increasing gamma irradiation dose, the dose curves show only slight bifurcation in this band, indicating that the overall visible and near-infrared transmittance of various quartz glass formulations remains good after high-dose irradiation. In contrast, in the ultraviolet band (200–300 nm), the transmittance of the three samples is more sensitive to the irradiation dose: as the gamma dose gradually increases from 10 kGy to 1000 kGy, the ultraviolet cutoff edge of each sample shifts slightly towards longer wavelengths, and the transmittance in the short-wavelength band decreases to some extent. The ultraviolet transmittance of sample GX shows the most significant deterioration, while the changes in ultraviolet transmittance of samples Z05 and H03 are relatively smaller. These results indicate that comparing the full-band transmittance spectra of different quartz glass formulations after multi-dose gamma irradiation can be used to quantitatively evaluate their irradiation stability in the ultraviolet-visible band.

[0098] Based on the above method, this application discloses an accelerated degradation assessment system for quartz glass subjected to multi-source irradiation, with reference to... Figure 7 The accelerated degradation assessment system 1 includes a baseline characterization module 11, a data processing module 12, and a degradation assessment module 13, wherein... The baseline characterization module 11 is used to classify the quartz glass samples to be tested and to perform baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested. The data processing module 12 is used to construct an equivalent temporal loading path corresponding to the multi-source coupling environment of the quartz glass sample under test in real space service conditions. The multi-source coupling environment includes gamma ray irradiation, high repetition rate laser irradiation, vacuum conditions and thermal cycling conditions. According to the equivalent temporal loading path, gamma ray irradiation and high repetition rate laser irradiation are applied to the quartz glass sample under test in sequence. At the intermediate nodes in the equivalent temporal loading path, intermediate multimodal characterization is performed on the quartz glass sample under test to obtain intermediate multimodal vectors. Based on the initial state vector and intermediate multimodal vectors, an equivalent coupling damage factor and joint failure criterion are constructed. The degradation assessment module 13 is used to obtain the degradation evaluation results of the quartz glass sample under test under real space service conditions based on the equivalent coupled damage factor and the joint failure criterion.

[0099] In one example, the baseline characterization module 11 is used to classify all the quartz glass samples to be tested according to their hydroxyl content and chlorine content. Each quartz glass sample is classified into any one of low-hydroxyl quartz glass, high-hydroxyl quartz glass, and chlorine-containing quartz glass. Each type of quartz glass sample has a unique code, and the module records the corresponding composition, hydroxyl content, chlorine content, preparation process, size, and processing history of each quartz glass sample. The module performs baseline characterization on each quartz glass sample to obtain the transmittance and weak absorption coefficient at the target working wavelength, the initial point defect comprehensive quantity inverted by electron paramagnetic resonance testing, the 3-4 member ring structure parameters obtained by Raman spectroscopy, the void structure parameters obtained by positron annihilation testing, and the laser damage threshold. The transmittance, weak absorption coefficient, initial point defect comprehensive quantity, 3-4 member ring structure parameters, void structure parameters, and laser damage threshold are normalized and vectorized to construct the initial state vector of the quartz glass sample to be tested.

[0100] In one example, the data processing module 12 is used to divide the multi-source coupling environment under real space service conditions into three loading stages in the time dimension: a first gamma irradiation stage, a high repetition rate laser irradiation stage, and a gamma irradiation supplementation stage; insert a vacuum condition loading stage and / or a thermal cycling condition loading stage between the first gamma irradiation stage and the high repetition rate laser irradiation stage; calibrate the corresponding total gamma dose, gamma dose rate, and loading duration for the first gamma irradiation stage and the gamma irradiation supplementation stage, respectively; calibrate the corresponding laser repetition frequency, single pulse energy density, pulse number, and loading duration for the high repetition rate laser irradiation stage; calibrate the corresponding vacuum holding time for the vacuum condition loading stage; and calibrate the corresponding number of thermal cycles for the thermal cycling condition loading stage, so as to form an equivalent time-series loading path.

[0101] In one example, the data processing module 12 is used to pause loading the multi-source coupling environment at each intermediate node, remove the quartz glass sample to be tested, and sequentially perform transmission spectroscopy, electron paramagnetic resonance, Raman spectroscopy, and positron annihilation tests on the quartz glass sample to be tested to obtain the transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, and void structure parameters of the quartz glass sample to be tested at the intermediate node. The transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, void structure parameters, and laser damage threshold obtained at each intermediate node are normalized and vectorized to form an intermediate multimodal vector corresponding to the intermediate node.

[0102] In one example, the intermediate nodes in the equivalent timing loading path include a first intermediate node located between the first gamma irradiation stage and the high repetition rate laser irradiation stage, and a second intermediate node located inside the high repetition rate laser irradiation stage.

[0103] In one example, the data processing module 12 is used to extract the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters, and laser damage threshold corresponding to the target working wavelength based on the initial state vector and each intermediate multimode vector. It also calculates the parameter changes of the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters, and laser damage threshold corresponding to each intermediate multimode vector relative to the initial state vector. The parameter changes are normalized and weighted by preset weights to obtain the equivalent coupled damage factor characterizing the degree of comprehensive degradation of multi-source irradiation and the joint failure criterion characterizing the comprehensive impact.

[0104] In one example, the degradation assessment module 13 is used to calculate the equivalent coupled damage factor corresponding to each node at the first intermediate node, the second intermediate node, and the final state node in the equivalent time-series loading path, so as to obtain the changing trend of the equivalent coupled damage factor at each node at different stages. The changing trend characterizes the degree of weak absorption recovery and defect evolution behavior of the quartz glass sample under test under real space service conditions. The joint failure criterion corresponding to the final state node is compared with the preset degradation threshold. When the joint failure criterion is less than the preset degradation threshold, the quartz glass sample under test is determined to be degraded effectively. When the joint failure criterion is greater than or equal to the preset degradation threshold, the quartz glass sample under test is determined to be degraded and failed.

[0105] Please see Figure 8 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 8 As shown, the electronic device 2 may include: at least one processor 21, at least one network interface 24, user interface 23, memory 25, and at least one communication bus 22.

[0106] The communication bus 22 is used to enable communication between these components.

[0107] The user interface 23 may include a display screen and a camera. Optionally, the user interface 23 may also include a standard wired interface and a wireless interface.

[0108] The network interface 24 may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0109] The processor 21 may include one or more processing cores. The processor 21 connects to various parts of the server using various interfaces and lines, and performs various server functions and processes data by running or executing instructions, programs, code sets, or instruction sets stored in the memory 25, and by calling data stored in the memory 25. Optionally, the processor 21 may be implemented using at least one hardware form of Digital Signal Processing (DSP), Field-Programmable Gate Array (FPGA), or Programmable Logic Array (PLA). The processor 21 may integrate one or a combination of several of the following: Central Processing Unit (CPU), Graphics Processing Unit (GPU), and modem. The CPU primarily handles the operating system, user interface, and applications; the GPU is responsible for rendering and drawing the content required for display; and the modem handles wireless communication. It is understood that the modem may also be implemented as a separate chip without being integrated into the processor 21.

[0110] The memory 25 may include random access memory (RAM) or read-only memory. Optionally, the memory 25 may include non-transitory computer-readable storage medium. The memory 25 can be used to store instructions, programs, code, code sets, or instruction sets. The memory 25 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as touch function, sound playback function, image playback function, etc.), instructions for implementing the above-described method embodiments, etc.; the data storage area may store data involved in the above-described method embodiments, etc. Optionally, the memory 25 may also be at least one storage device located remotely from the aforementioned processor 21. Figure 8 As shown, the memory 25, which serves as a computer storage medium, may include an operating system, a network communication module, a user interface module, and an application program for an accelerated degradation assessment method of quartz glass by multi-source irradiation.

[0111] exist Figure 8In the electronic device 2 shown, the user interface 23 is mainly used to provide an input interface for the user and to obtain the user input data; while the processor 21 can be used to call the application program stored in the memory 25 for an accelerated degradation assessment method of quartz glass by multi-source irradiation. When executed by one or more processors, the electronic device performs one or more methods as described in the above embodiments.

[0112] A non-transitory computer-readable storage medium stores instructions that, when executed by one or more processors, cause a computer to perform one or more methods as described in the above embodiments.

[0113] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that this application is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to this application. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to this application.

[0114] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0115] In the several embodiments provided in this application, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the shown or discussed mutual couplings or direct couplings or communication connections may be through some service interfaces; indirect couplings or communication connections between apparatuses or units may be electrical or other forms.

[0116] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0117] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0118] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage device (CMD). Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a memory and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned memory includes various media capable of storing program code, such as USB flash drives, portable hard drives, magnetic disks, or optical disks.

[0119] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for assessing accelerated degradation of quartz glass by multi-source irradiation, characterized in that, The method includes: The quartz glass samples to be tested are classified, and baseline characterization is performed on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested. Based on the multi-source coupling environment of the quartz glass sample under real space service conditions, an equivalent time-series loading path corresponding to the multi-source coupling environment is constructed. The multi-source coupling environment includes gamma ray irradiation, high repetition rate laser irradiation, vacuum conditions, and thermal cycling conditions. According to the equivalent temporal loading path, the quartz glass sample under test is sequentially irradiated with gamma rays and high repetition rate laser irradiation, and intermediate multimodal characterization is performed on the quartz glass sample under test at the intermediate node in the equivalent temporal loading path to obtain the intermediate multimodal vector. Based on the initial state vector and the intermediate multimodal vector, an equivalent coupled damage factor and a joint failure criterion are constructed. Based on the equivalent coupled damage factor and the joint failure criterion, the degradation evaluation results of the quartz glass sample under test under real space service conditions are obtained.

2. The accelerated degradation assessment method for quartz glass under multi-source irradiation as described in claim 1, characterized in that, The process of classifying the quartz glass samples to be tested and performing baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested specifically includes: All quartz glass samples to be tested were classified according to hydroxyl content and chlorine content. Each quartz glass sample to be tested was classified into any one of low-hydroxyl quartz glass, high-hydroxyl quartz glass, and chlorine-containing quartz glass. Each type of quartz glass sample to be tested had a unique code, and the corresponding components, hydroxyl content, chlorine content, preparation process, size, and processing history of each quartz glass sample to be tested were recorded. Baseline characterization was performed on each quartz glass sample to be tested, and the transmittance and weak absorption coefficient of the quartz glass sample to be tested at the target working wavelength, the initial point defect comprehensive quantity inverted by electron paramagnetic resonance test, the 3-4 member ring structure parameters obtained by Raman spectroscopy, the void structure parameters obtained by positron annihilation test, and the laser damage threshold were obtained. The transmittance, the weak absorption coefficient, the initial point defect comprehensive quantity, the 3-4 member ring structure parameters, the void structure parameters, and the laser damage threshold are normalized and vectorized to construct the initial state vector of the quartz glass sample to be tested.

3. The accelerated degradation assessment method for quartz glass under multi-source irradiation as described in claim 1, characterized in that, The step of constructing an equivalent temporal loading path corresponding to the multi-source coupling environment of the quartz glass sample under real-world space service conditions specifically includes: The multi-source coupling environment under real space service conditions is divided into three loading stages in the time dimension: the first gamma irradiation stage, the high repetition rate laser irradiation stage, and the gamma irradiation supplementation stage. A vacuum loading stage and / or a thermal cycling loading stage are inserted between the first gamma irradiation stage and the high repetition rate laser irradiation stage. The total gamma dose, gamma dose rate, and loading duration are calibrated for the first gamma irradiation stage and the gamma irradiation supplementation stage, respectively. The laser repetition frequency, single pulse energy density, number of pulses, and loading duration are calibrated for the high repetition rate laser irradiation stage. The vacuum holding time is calibrated for the vacuum loading stage. The number of thermal cycles is calibrated for the thermal cycling loading stage, so as to form an equivalent timing loading path.

4. The accelerated degradation assessment method for quartz glass under multi-source irradiation as described in claim 1, characterized in that, The intermediate multimodal characterization of the quartz glass sample under test at intermediate nodes in the equivalent time-series loading path to obtain intermediate multimodal vectors specifically includes: At each intermediate node, the loading of the multi-source coupling environment is paused, and the quartz glass sample to be tested is taken out. The quartz glass sample to be tested is then subjected to transmission spectroscopy, electron paramagnetic resonance, Raman spectroscopy, and positron annihilation tests in sequence to obtain the transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, and void structure parameters of the quartz glass sample to be tested at the intermediate node. The transmittance, weak absorption coefficient, weak defect concentration, 3-4 member ring structure parameters, void structure parameters, and laser damage threshold obtained at each intermediate node are normalized and vectorized to form an intermediate multimodal vector corresponding to the intermediate node.

5. The accelerated degradation assessment method for quartz glass under multi-source irradiation as described in claim 3, characterized in that, The intermediate nodes in the equivalent timing loading path include a first intermediate node located between the first gamma irradiation stage and the high repetition rate laser irradiation stage, and a second intermediate node located within the high repetition rate laser irradiation stage.

6. The accelerated degradation assessment method for quartz glass under multi-source irradiation as described in claim 1, characterized in that, The construction of the equivalent coupled damage factor and joint failure criterion based on the initial state vector and the intermediate multimodal vector specifically includes: Based on the initial state vector and each intermediate multimode vector, the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters and laser damage threshold corresponding to the target working wavelength are extracted, and the parameter changes of the transmittance, weak absorption coefficient, point defect comprehensive quantity, ring structure parameters, void structure parameters and laser damage threshold corresponding to each intermediate multimode vector relative to the initial state vector are calculated. The changes in each parameter are normalized and weighted by preset weights to obtain the equivalent coupled damage factor characterizing the degree of comprehensive degradation of multi-source irradiation and the joint failure criterion characterizing the comprehensive impact.

7. The accelerated degradation assessment method for quartz glass under multi-source irradiation as described in claim 1, characterized in that, The degradation evaluation results of the tested quartz glass sample under real space service conditions are given based on the equivalent coupled damage factor and the joint failure criterion, specifically including: The equivalent coupling damage factor corresponding to each node is calculated at the first intermediate node, the second intermediate node, and the final state node in the equivalent time-series loading path, so as to obtain the changing trend of the equivalent coupling damage factor of each node at different stages. The changing trend characterizes the degree of weak absorption recovery and defect evolution behavior of the quartz glass sample under test under real space service conditions. The joint failure criterion corresponding to the final state node is compared with the preset degradation threshold. When the joint failure criterion is less than the preset degradation threshold, the quartz glass sample to be tested is determined to be degraded effectively. When the combined failure criterion is greater than or equal to the preset degradation threshold, the quartz glass sample to be tested is determined to be degraded and failed.

8. A system for assessing accelerated degradation of quartz glass by multi-source irradiation, characterized in that, The accelerated degradation assessment system includes a baseline characterization module, a data processing module, and a degradation assessment module, wherein... The baseline characterization module is used to classify the quartz glass samples to be tested and to perform baseline characterization on different types of quartz glass samples to obtain the initial state vector of each quartz glass sample to be tested. The data processing module is used to construct an equivalent temporal loading path corresponding to the multi-source coupling environment of the quartz glass sample under test in real space service conditions. The multi-source coupling environment includes gamma-ray irradiation, high-repetition-rate laser irradiation, vacuum conditions, and thermal cycling conditions. According to the equivalent temporal loading path, gamma-ray irradiation and high-repetition-rate laser irradiation are applied to the quartz glass sample under test in sequence. At the intermediate nodes in the equivalent temporal loading path, intermediate multimodal characterization is performed on the quartz glass sample under test to obtain intermediate multimodal vectors. Based on the initial state vector and the intermediate multimodal vectors, an equivalent coupling damage factor and a joint failure criterion are constructed. The degradation assessment module is used to obtain the degradation evaluation results of the quartz glass sample under test under real space service conditions based on the equivalent coupled damage factor and the joint failure criterion.

9. An electronic device, characterized in that, The device includes a processor, a memory, a user interface, and a network interface. The memory is used to store instructions, the user interface and the network interface are used to communicate with other devices, and the processor is used to execute the instructions stored in the memory to cause the electronic device to perform the method as described in any one of claims 1-7.

10. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1-7.

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