2727 results about "Irradiation" patented technology

The invention relates to the technical field of light source control, and discloses a self-adaptive regulation and control method and device for wafer detection light source brightness, and the method comprises the steps: carrying out the preliminary irradiation of a wafer through a preset annular light source, collecting initial image data, carrying out the digital simulation according to the initial detection data, and generating a wafer detection feedback model; analyzing a light source irradiation demand according to the detection feedback model, generating a gradient execution scheme, sequentially configuring light source parameters according to the gradient scheme, carrying out multiple rounds of detection on a wafer, collecting data, feeding detection data back to the model, carrying out parameter adjustment, carrying out expanded light source detection demand analysis on the adjusted model, and generating an expanded detection scheme. According to the method, by automatically adjusting the brightness and configuration of the light source, efficient and accurate wafer surface defect detection is achieved, the detection precision and efficiency are improved, the method adapts to the detection requirements of different wafers, and the problem that in the prior art, due to the fact that the light source used for detection is not comprehensive enough, the defect is not detected is solved.

The invention discloses a UV illumination control method and system for a reel-to-reel exposure machine. The method comprises the following steps: acquiring a real-time moving speed and a tension change value of a coiled material; when the tension change value is greater than the tension threshold value, predicting the deformation trend of the surface of the coiled material based on a nonlinear regression algorithm in combination with the real-time moving speed to obtain a deformation influence value; according to the deformation influence value, a PID control algorithm is adopted to adjust the UV light source, and a light intensity distribution value is obtained; according to the light intensity distribution value, a fuzzy control algorithm is adopted to calculate the output intensity requirement of the UV light source, and speed adjustment is carried out in combination with the real-time moving speed, so that optimized irradiation parameters are obtained; performing area judgment according to the optimized irradiation parameters to obtain an overexposure area and an underexposure area; and adjusting the intensity and distribution of the UV light source in the overexposure area and the underexposure area until the area exposure quality reaches a preset standard range. The method can realize real-time response regulation and control on tension and speed change of the coiled material, and solves the problem of non-uniform exposure dose.

A radiation imaging system comprises a radiation detector having a plurality of pixels for detecting radiation arrayed in a matrix, a plurality of detecting pixels arranged in a region in which the plurality of pixels are arrayed in the matrix and configured to output a signal corresponding to an amount of irradiation with the radiation; and a processing unit. The processing unit receives weighting information associated with a region of interest in an imaging range and generates determination information for controlling irradiation with the radiation by applying the weighting information to the corresponding signal.

The invention relates to the technical field of SRAM (Static Random Access Memory) memory anti-radiation testing, and discloses an SRAM memory anti-radiation testing method and system based on running state injection, and the method comprises the following steps: system initialization, mapping preparation and time sequence baseline establishment; carrying out model quantitative compiling, sensitivity analysis and physical bit candidate generation; generating a running state injection plan and loading a test case; performing operation state execution, disturbance injection and synchronous monitoring acquisition; multi-source triggering, weight read-back and fault decoupling judgment are carried out; and performing quantitative evaluation on anti-radiation performance, constructing a degradation curve and outputting a report. The system corresponds to the method. According to the invention, a hardware-in-the-loop operation state injection and online evaluation technology is constructed, and the technical problems of guidance and position limited disturbance / equivalent irradiation injection based on weight bit level sensitivity and logic-physical mapping are solved.

The invention discloses a cable electric leakage detection device and detection method, and belongs to the field of cable electric leakage detection. A cable electric leakage detection device comprises a base. A detection rod; and a cleaning brush. Air is blown out through the cleaning brush, and the cleaning brush is matched to brush the outer surface of the cable, so that dust and other impurities at the damaged and crack positions of the outer surface of the cable are cleaned out, the cleanliness of the cable is ensured, and red fluorescence labeling liquid is released at the damaged and crack positions of the outer surface of the cable; the cable damage and crack detection device can mark all damage and cracks of a cable, observation of subsequent personnel is facilitated, the detection efficiency and quality of the damage and cracks of the cable are improved, eye fatigue of detection personnel is reduced at the same time, red fluorescent marking liquid can be turned into green under irradiation of an ultraviolet lamp, and the detection efficiency is improved. Therefore, the personnel can visually judge the electric leakage part of the cable according to the color, the detection accuracy of the electric leakage part of the cable is improved, and the burden of the personnel is reduced.

The invention belongs to the field of plastic product production, and particularly relates to a composite material for preparing a textile dyeing tube. The composite material mainly comprises the following components in parts by weight: 10 parts of PET resin, 10 parts of ASA resin, 1-6 parts of matt master batches, 1-3 parts of titanium dioxide, 1-2 parts of rosin, 0-1.5 parts of an antioxidant, 0-1 part of a fire retardant and 1-2 parts of a lubricating agent, wherein titanium dioxide is rutile titanium dioxide. Compared with the prior art, the components are good in compatibility; the molded product has excellent physical and mechanical properties, low glossiness, high strength (caused by titanium dioxide) and good tenacity, and is suitable for injection molding of plastic products; the metallic luster caused by titanium dioxide can be reduced; the noise can be reduced; titanium dioxide can be used for disinfecting under irradiation of an ultraviolet lamp; the composite material is very convenient; and the lubricating agent is added, so that the surface is relatively smooth.

The invention relates to a full-automatic test system and method compatible with multi-type component irradiation tests, and the system comprises an irradiation main control board, an irradiation test board and an irradiation load board which are disposed in an irradiation room and are connected through a cable, and an electronic load, a programmable power supply, an upper computer and a digital oscilloscope which are disposed in a test preparation room. The system can compatibly support the irradiation test of the total dose effect and the single event effect, is suitable for the rapid assessment demand of multiple types of COTS components on a large scale, and can meet the urgent demand of the commercial spaceflight field for the evaluation of the radiation resistance of the COTS components.

The invention discloses a high geological disaster chain risk quantitative assessment method adapted to a high-cold and high-altitude environment, and relates to the technical field of geological disaster monitoring and prevention and control, and the method comprises the following steps: S100, building an irradiation and reflection combined observation layer, collecting the dynamic intensity of direct light and reflected light, generating an exposure time sequence fingerprint baseline, and obtaining an exposure time sequence fingerprint baseline; and determining a critical threshold value of the direct light intensity according to the base line. The method comprises the following steps: constructing an irradiation and reflection combined observation layer to extract light intensity characteristics, and generating an exposure time sequence fingerprint baseline; a trigger point boundary is extracted by adopting coherent phase decomposition and anti-fact playback, and a continuous track is reconstructed; the overexposure risk is predicted based on the time-frequency score, and spectrum gating and polarization rotation are linked to regulate and control the exposure rhythm; and reverse phase traction and phase conjugate intervention are implemented in a steady-state window, so that boundary information is maintained and the risk identification precision is improved.

A nuclear reactor is discussed herein. In some examples, the nuclear reactor may comprise an inner-core region, including liquid fuel, coolant / moderator, and a hydrogen vapor space, an out-of-core region surrounding the inner-core region, the out-of-core region including, an inner reflector adjacent to the inner-core region, the inner reflector including a first irradiation facility, and an outer reflector adjacent to the inner reflector, the outer reflector including a second irradiation facility.

An illumination unit includes a light source and a light guiding component, and the light source includes a plurality of light emitting modules distributed in an arc shape to make the emitted incident light to be emitted through the light guiding component to present an angled irradiation range. By providing a plurality of light emitting modules distributed in an arc shape and a corresponding matched light guiding component, the illumination unit can provide an illumination function to illuminate the space while providing a visually attractive illumination effect when being applied to an illumination glass, thus providing more feasibility for product structure design and functional design, and being widely applicable to various occasions.

The invention relates to a sensor head (20), wherein the sensor head (20) comprises a sensor element (11), a glass fiber and / or an optical waveguide (6). The sensor element (11) is mechanically and optically connected to the first end of the glass fiber or the optical waveguide (6) such that the glass fiber or the optical waveguide (6) can irradiate the sensor element (11) with pump radiation of a pump radiation wavelength, which the glass fiber or the optical waveguide (6) transports in the direction of the sensor element (6), and the glass fiber or the optical waveguide (6) can detect fluorescence radiation with a fluorescence radiation wavelength from the interior of the sensor element (11) and transports it in the direction away from the sensor element (6). The sensor head comprises a ceramic ferrule (7) with an inner tube along its longitudinal axis.The optical fiber (6) is inserted into the inner tube of the ferrule (7) so that the sensor element (11) is located at the other end of the ferrule (7) and / or protrudes from the inner tube of the ferrule (7). The ferrule (7) is inserted into a hollow tip (3) so that the sensor element (11) is preferably located at the tip of the hollow tip (3). The hollow tip (3) is inserted into a ceramic tube (2). The sensor head (20) comprises a shuttle (8). The glass fiber or the optical fiber (6) is guided within the shuttle (8). The shuttle (8) is inserted within the ceramic tube (2). The hollow tip (3) closes the ceramic tube (2). A holder (1) is pushed or plugged onto the ceramic tube (2). The glass fiber or the optical fiber (6) is guided outside the sensor head (2) in an outermost fiber shield (5).The sensor element (11) comprises crystals with paramagnetic centers that emit fluorescence radiation upon irradiation with pump radiation of the pump radiation wavelength. The crystal can, in particular, comprise diamond with NV centers and / or ST1 centers and / or TR1 centers as paramagnetic centers.

The invention discloses a method and a system for determining optimal parameters of an X-ray excited extra-high voltage composite apparatus, and relates to the technical field of extra-high voltage electrical equipment detection. The method comprises the following steps: remotely operating the X-ray machine and calculating partial discharge intensity; for the current irradiation position, the tube voltage and the tube current are gradually adjusted, parameters are dynamically optimized based on the quantitative relation between the partial discharge intensity and the radiation dose rate change rate, and the optimal parameters are recorded; and changing position repetition parameter optimization, and constructing a BP neural network model after data set training optimization so as to predict an optimal irradiation position. The optimized BP neural network adopts an improved sparrow search algorithm to optimize an initial weight and a threshold value, and combines Bayesian to optimize a learning rate and a hidden node number. Accurate optimization of excitation parameters and irradiation positions is achieved, detection accuracy and safety are both considered, the optimal irradiation position positioning efficiency is improved, and the method is suitable for ultra-high voltage GIS detection of different voltage grades.

A radiation imaging system comprises a sensor unit of a radiation imaging device, detecting an incident radiation R irradiated from a radiation generator; an arithmetic unit calculating an accumulated dose of the radiation detected by the sensor unit; and an imaging control unit outputting an irradiation stop signal for stopping the irradiation of the radiation R to the radiation generator when the accumulated dose reaches a threshold or more, wherein the imaging control unit sets the threshold based on a dose rate of the radiation R determined based on a relationship between the accumulated dose and a time, and a delay time from a time of outputting the irradiation stop signal to a time of stopping the irradiation of the radiation of the radiation generator.

A light emitting system includes at least one light emitting device configurable to emit light into an external environment, a controller configured to adjust a light flux output from the at least one light emitting device, and a non-transitory computer readable storage media comprising a plurality of parameters, the parameters including rules for prioritizing a first illumination mode or first irradiance mode over a second illumination mode or second irradiation mode that direct the at least one light emitting device to emit a first light flux into a first angular bin and a second light flux different from the first light flux into a second angular bin different from the first angular bin.

The invention discloses a pain treatment method based on infrared photothermal coupling, and belongs to the technical field of medical engineering. Comprising the following steps: acquiring physiological feature data, pathological feature data and optical feature data of a patient, and acquiring initial equipment parameters of the intelligent infrared photothermal treatment device; the method comprises the following steps: constructing an individualized photo-thermal response prediction model through Monte Carlo photon transmission simulation in combination with finite element heat conduction analysis, predicting a therapeutic effect score and an optimal parameter combination by using a deep neural network model based on a Transform architecture, generating an individualized temperature-time therapeutic curve, and determining initial illumination parameter configuration; controlling the intelligent infrared photothermal treatment device to start a treatment process according to the initial illumination parameter configuration; and according to the comprehensive biomarker score and in combination with a real-time analysis result of the neural network processing module, the output power, the pulse duty ratio and the irradiation mode of the infrared light source are automatically adjusted through the infrared light source control module.

The invention relates to the field of photovoltaic power generation, and particularly discloses a climate self-adaptive photovoltaic cooling method and system based on interface evaporation, and the system comprises a hydrophilic and hydrophobic composite radiation refrigeration film which is used for capturing atmospheric moisture through a radiation refrigeration effect under a low-radiation condition to form a cooling water source; the bionic water conveying structure comprises a modified silicone tube and a juncus roemerianus bundle and is used for conveying the captured water to the high-level water tank through capillary action; according to the invention, by fusing interface evaporation and radiation refrigeration technologies, the system realizes efficient cooling and energy recovery of the photovoltaic module; under the condition of strong irradiation, the gradient wettability interface evaporation layer takes away waste heat of the module through directional water film flow, so that the temperature of the photovoltaic module is reduced, the photoelectric conversion efficiency is improved, and meanwhile, the daily generating capacity is increased; the cooling effect is obviously better than that of a traditional natural convection or phase change material cooling mode, and efficient heat transfer is achieved through phase change latent heat utilization of interface evaporation.

The invention relates to the technical field of security and protection monitoring, in particular to a park building visual security and protection monitoring management system which comprises a plurality of monitoring devices and a plurality of display devices, laser emitters with freely adjustable irradiation angles are arranged below the monitoring devices, the park building visual security and protection monitoring management system further comprises a smoke recognition unit, independent analysis is carried out on each monitoring device, and the smoke recognition unit is connected with the monitoring devices. Monitoring images are collected regularly, a plurality of continuously collected images are compared and analyzed, and smoke generation, a smoke area and a smoke diffusion direction are identified; the smoke analysis unit is used for analyzing and calculating a smoke concentration index based on the brightness of the visible light path, analyzing a smoke thickness index based on the space coordinate of each end point of the visible light path, and calculating a smoke diffusion index based on the smoke concentration index and the smoke thickness index; and the area evacuation unit is provided with a plurality of escape channel maps in advance, and the display colors and the color depths of different areas in the escape channel maps are adjusted based on the smoke diffusion indexes.

The present disclosure relates to a photoreactor and method of use thereof. In an aspect, the photoreactor can be configured as a solar panel comprising a channel containing a heterogeneous photocatalyst. When water or another hydrogen-containing liquid is pumped through the photoreactor, it contacts the photocatalyst in the presence of UV or visible irradiation, simultaneously releasing hydrogen and separating the hydrogen via a gas-permeable membrane. In an aspect, the photoreactor can be used in a method for continuous production of high-purity H2 gas, the method comprising dehydrogenating tetrahydroquinoline (THQ) to form quinoline under visible light using a Rh / TiO2 heterogeneous photocatalyst. In another aspect, the catalyst includes Rh particles photodeposited on TiO2 microparticles. In a further aspect, the method can include regenerating THQ from quinoline using a water gas shift (WGS) reaction.

The invention relates to the technical field of bridge deflection monitoring equipment, in particular to a bridge state real-time monitoring device, system and method based on radar deployment. A reciprocating motion mechanism and a tooth holder are arranged on the surfaces of the two sides of the bearing plate frame respectively, and the other end of the reciprocating motion mechanism penetrates through the surface of the other side of the bearing plate frame and is provided with a wheel type pressure detection mechanism and an infrared distance meter respectively; the triangular target and the irradiation lamp are respectively arranged on the rotating disc and the surface of one end, penetrating through the other side of the bearing plate frame, of the rotating disc. The structure is reasonable, diversified monitoring means are adopted, the monitoring accuracy and reliability are effectively improved, the installation process of the triangular targets is simplified, the installation number of the triangular targets is reduced, the working efficiency is improved, damage to a bridge structure is remarkably reduced, the rapid positioning function of radar equipment is achieved, and the monitoring accuracy and reliability are improved. And the monitoring efficiency is further improved.

The invention relates to the technical field of radiation monitoring, in particular to a radioactive foam height nuclear monitoring system and a use method. A radioactive foam height nuclear monitoring system comprises an ionization chamber detector; the collimation shielding module is provided with a containing space, the ionization chamber detector is contained in the containing space, the collimation shielding module is provided with a collimation hole, and particles generated by the self-radiation source can pass through the collimation hole. The invention provides a radioactive foam height nuclear monitoring system and a use method, and aims to solve the problem that a conventional radiation detector is difficult to bear an extremely high radiation environment and affects the detection precision.

The invention relates to the technical field of high-pressure precise physical experiments, in particular to an irradiation sample table. A to-be-tested sample is placed on the sample table, and the second gland and the first gland are detachably connected to the sample table in sequence, so that the holes in the first gland and the second gland correspond to the to-be-tested sample. The size of the hole is smaller than the diameter of the to-be-detected sample, so that the radiation area is smaller than the diameter of the to-be-detected sample; moreover, the second gland is a ceramic gland and has good insulation performance, so that the situation that plasma directly bombards a sample table to generate an edge effect during irradiation, and adverse effects on judgment and separation of real particle flow density distribution borne by the surface of the to-be-detected sample are generated can be avoided. When samples of different sizes need to be replaced, only the first gland and the second gland which are provided with the open holes matched with the samples in size need to be replaced, operation is easy and fast, cost is low, and the experiment continuity and efficiency cannot be affected.

The invention discloses a laser wireless energy transmission system based on a vertical tracking structure and double-stage global optimization and a control method, and belongs to the technical field of photoelectric energy conversion and intelligent control. Aiming at the technical bottlenecks of high reflection loss of a photovoltaic array and MPPT failure caused by multi-peak characteristics due to non-uniform irradiation in the existing laser wireless transmission system, the invention provides three innovations: (1) designing a two-degree-of-freedom vertical tracking type photovoltaic array, and adjusting the pitch angle and azimuth angle of a photovoltaic panel in real time through a servo motor driving holder; a silicon nitride anti-reflection coating (the refractive index is smaller than or equal to 1.8) and a laser positioning sensor are combined to construct an incident angle deviation dynamic compensation model, and the reflection loss rate is reduced to be lower than 5%; (2) putting forward a global MPPT dual-stage optimization algorithm, dividing a voltage interval based on irradiation non-uniformity in a coarse positioning stage and generating an optimal candidate solution, and adopting an improved particle swarm algorithm (introducing an inertia weight dynamic adjustment mechanism and a local extreme value escape strategy) in a fine search stage to realize that the global maximum power point tracking precision reaches 99.2% in a multi-peak scene; and (3) establishing a reflection loss-power coupling control model, and solving the problems of tracking delay and energy oscillation of a traditional system through angle adjustment of the photovoltaic panel and closed-loop feedback of MPPT (Maximum Power Point Tracking) output. Compared with the prior art, the comprehensive efficiency of the system is improved by 18.6% under the dynamic irradiation condition, and the system is suitable for space laser power supply and mobile equipment wireless charging scenes.

The invention relates to the technical field of dust concentration detection, in particular to an online detection method and system based on limited space dust concentration, and the method comprises the following steps: based on each detection area, analyzing scattered light signals, classifying the scattered light signals into different particle size categories according to angles and coordinates, and performing signal compensation in combination with real-time humidity; adjusting the irradiation direction of the LED array to optimize illumination distribution, comparing light intensity differences, dynamically scheduling uniform illumination areas, subdividing detection points, analyzing layering signals, and obtaining particle size layering concentration data. According to the invention, distribution mapping with distinct particle size category difference is realized by using a spatial multi-dimensional layered structure, signal adaptability is improved by fusing a humidity dynamic response mechanism, particle size, humidity and illumination multi-source data are dynamically fused, local environment interference is eliminated through layering and compensation linkage, and the accuracy of the system is improved. The continuity of data expression and the response speed of concentration monitoring are improved, and continuous dynamic tracking of the dust state in a limited space complex environment is supported.

The invention provides an electron irradiation dose on-line measurement and feedback calibration system and method, and relates to the technical field of automation control, and the system comprises a processing module which is used for converting an original dose signal into a five-path digital reading sequence, carrying out the timestamp alignment and space coordinate calibration of the five-path digital reading sequence, and outputting a calibration result; generating a three-dimensional discrete coordinate data set representing radiation field intensity space distribution; and the extraction module is used for identifying a radiation intensity global maximum value point from the three-dimensional discrete coordinate data set as a spatial registration origin, extracting two feature straight lines representing a radiation scattering dominant direction, and calculating a spatial orientation included angle between the two feature straight lines to determine a radiation scattering main influence area. According to the invention, precise processing of an original dose signal, scientific positioning of a radiation influence area and construction of a dynamic compensation model are realized through cooperation of multiple modules, a high-confidence dose value can be output, feedback calibration is completed based on a time sequence drift trend, and the precision and reliability of on-line measurement of the electron radiation dose are effectively guaranteed.

The invention relates to the technical field of cameras, and discloses a flame recognition method and device based on a camera, electronic equipment and a storage medium, and the method comprises the steps: detecting an environment illumination value corresponding to a first image collected in real time through the camera, and selecting a white light recognition mode or an infrared recognition mode according to the environment illumination value; when the white light recognition mode is selected, collecting a second image through the camera and extracting a flame color feature vector of the second image to calculate a first flame recognition result; when the infrared recognition mode is selected, a third image is collected through the camera, the flame heat radiation feature vector of the third image is extracted, and a second flame recognition result is calculated. According to the method, the color difference characteristic of a real flame and a non-flame light-emitting object under white light irradiation is utilized, the false alarm rate is effectively reduced, and the judgment reliability is improved.

An adjuster performs simultaneous irradiation of M laser beams to an atomic beam, where M is a predetermined integer satisfying 3≤M. The course of each of the M laser beams intersects with the course of the atomic beam. A component, in a direction perpendicular to the course of the atomic beam, of the sum of radiation pressure vectors that the M laser beams respectively have is zero. A component, in a direction of the course of the atomic beam, of the sum of the radiation pressure vectors that the M laser beams respectively have is negative for atoms having speeds greater than a predetermined speed, and positive for atoms having speeds smaller than the predetermined speed.

The invention discloses a radiation-resistant high-entropy alloy magnetron sputtering coating and a preparation method thereof, and belongs to the technical field of radiation-resistant coating materials. On the basis of the multi-element synergistic effect and lamination interface design of the high-entropy alloy, FeCrNi and FeNiCrMn are used as target materials, and the coating with the nanometer lamination structure is prepared by accurately regulating and controlling the target current, the gas flow, the deposition time and other process parameters of magnetron sputtering; meanwhile, accurate control over the single-layer film thickness and the interface density is achieved by adjusting the coupling relation between the sputtering power and the deposition rate, and it is ensured that all unit layers are flat and compact, and interface combination is complete. And a multi-heterogeneous interface is formed through the design of a laminated interface, so that a defect capture network is formed, the hardness of a single-layer coating is improved, the hardening rate after irradiation can be lower than that of a traditional single-layer coating, and the problems of crystallization and brittleness failure induced by irradiation are effectively relieved.

A self-cleaning method of a washing machine comprises the steps that after each washing procedure is finished, a system automatically detects the real-time humidity and the residual dirt concentration of an inner container of the washing machine, if the humidity is higher than a preset threshold value and the dirt concentration exceeds a datum line, an ultraviolet disinfection process is automatically triggered, UV-C lamp tubes installed on the top and the side wall of the inner container are started for irradiation sterilization, and the ultraviolet disinfection process is stopped; the duration time is 10-30 minutes, the built-in water flow nozzle module is activated in a set period or when a high dirt accumulation level is detected according to dynamic adjustment of the environment temperature and humidity and the use frequency, and the wall face of the inner container, the door seal ring and the drainage pipeline are flushed in all directions through high-pressure pulse water flow. According to the invention, the fundamental conversion from passive response to active prevention is realized, the equipment can perceive the environmental state of the inner container in real time by integrating a multi-dimensional sensor network and an AI prediction model, trend pre-judgment is carried out based on big data of user use habits, water quality conditions and washing modes, and a cleaning program is started when pollution does not appear so as to nip in the bud.

The invention relates to the technical field of surface coating, in particular to a self-adaptive semi-cured interface superposition spraying control method which comprises the following steps: S1, generating spraying path parameters according to the surface curvature of a workpiece and the distance between adjacent stations; s2, workpiece offset data are obtained in real time through a visual positioning system, three-dimensional coordinate compensation data are generated based on an image matching algorithm, and when the offset exceeds a preset threshold value, real-time re-planning of a spraying path is triggered; s3, multiple groups of nozzles are controlled to execute in an alternate spraying mode: after a first layer of material is sprayed at the first station, irradiation is performed for 0.5-2 s by adopting 50-100 mW / cm < 2 > UV intensity, and a semi-cured layer with the light curing rate of 70%-85% and the thickness of 5-20 microns is formed; s4, after the conveying belt moves to a second station, a first layer of material is sprayed on the second station and partially cured, a second layer of material is sprayed on the first station, and the light curing rate is larger than or equal to 95%; s5, the steps S3-S4 are cycled to complete multi-layer spraying; and S6, dynamically adjusting the doping proportion of the nano conductive particles in the spraying material according to the environment humidity.

The invention provides a composite collimator and a control method thereof, a radiotherapy system and a dose delivery method thereof, and relates to the technical field of radiotherapy, and the composite collimator comprises a grating and a diaphragm which are sequentially arranged in the direction of a beam center axis, the plurality of blades move to form a grating channel through which a radiation beam can pass; the diaphragm is provided with a collimation channel, and the diaphragm can move relative to a beam center axis; when the diaphragm moves to enable the collimation channel to be located at the central axis of the beam, the radiation beam forms a focusing radiation field in a target area through the grating channel and the collimation channel; and when the diaphragm moves to enable the collimation channel to deviate from the beam center axis, the radiation beam forms a conformal radiation field in the target area through the grating channel. Through switching between the conformal radiation field and the focusing radiation field, a flexible irradiation scheme is provided, so that the dose distribution effect can be improved, and the radiotherapy effect is improved.