286 results about "Synchrotron radiation" patented technology

The invention discloses an ecological pollution migration path analysis and early warning method and system based on soil heavy metals, and particularly relates to the technical field of ecological pollution. Monitoring points are arranged around a pollution source, micro CT scanning is combined to analyze permeability changes of soil under different humidity, a synchrotron radiation X-ray spectrometer is utilized to analyze dynamic changes of chemical forms of heavy metal, and the influence of humidity changes on migration paths and form transformation is comprehensively evaluated. The deviation degree of a model prediction result and an actual migration behavior is quantified, early warning signals of different levels are generated for the situation with the high deviation degree, corresponding measures are taken, the complex influence of abnormal soil characteristics on heavy metal migration is dynamically responded, and therefore the harm of soil pollution diffusion to the environment and ecology is effectively prevented and controlled.

An in-situ fretting corrosion fatigue testing machine based on synchrotron radiation diffraction and three-dimensional (3D) imaging includes an axial fatigue loading system, a fretting loading system, and a corrosion environment control system, where the axial fatigue loading system includes a driving device, a load control device, and a load sensing device; the load sensing device is configured to measure an axial force and a normal force in real time; the driving device is configured to drive the load control device, thereby achieving axial displacement of the load control device; the load control device is configured to carry out axial fatigue loading of a specimen; and the fretting loading system includes a fretting wear device. The testing machine achieves real-time 3D imaging characterization of wear spot and crack morphology of a material in a fretting corrosion environment, as well as characterization of a residual stress evolution law.

The invention discloses a method for researching diffusion stress of a lithium ion battery by constructing a high-fidelity microstructure model. The method comprises the following steps: firstly, performing tomography on an electrode material by using a synchrotron radiation X-ray tomography microscope, identifying active particles in the electrode material, calculating geometric parameters such as spatial distribution and volume radius of the particles, and establishing a three-dimensional geometric model of the lithium ion battery; based on mathematical models such as a reaction mechanism, a kinetic equation and a mechanical equilibrium equation of the lithium ion battery, a three-dimensional heterogeneous electrochemical-force coupling model is constructed, initial and boundary conditions are set for the model, grids are divided, and finite element calculation is carried out. According to the invention, the distribution of diffusion stress and the relationship between the distribution of diffusion stress and lithium ion concentration can be analyzed, and meanwhile, the electrode characteristics such as porosity, curvature, anisotropy and uniformity of the electrode can be analyzed. And battery failure phenomena such as particle breakage and particle stripping can be avoided, and theoretical guidance can be provided for preventing battery failure and capacity fading.

To study a system that transmutes atomic nuclei using muons, devise a light source device and a propulsion device including a nuclear transmutation system, and examine a centrifugal force application unit which may be accelerated by the propulsion device, and devise an electric field generator or a magnetic field generator.SOLUTION: A system is devised that decelerates cosmic muons produced from cosmic rays or high-speed muons derived from mesons produced from atomic collisions with electric field and deceleration means and uses the muons for nuclear transmutation. Also, a decelerator using a laser wake field and a decelerator using an element forming an electric field are proposed. A radiation light source having the nuclear transmutation unit is disclosed. An ionization device, a centrifugal gun device, a centrifugal force and pressure applying device, a pressure generation unit, a pressure applying material, a high-pressure induction superconductivity experimenting system, a magnetic device, and a magnetic sail are disclosed.SELECTED DRAWING: Figure 18

The invention relates to a method for in-situ observation of an alkali metal solid-state battery. The method comprises the following steps: S1, observing morphology and component changes of interface cross sections of a positive electrode, a negative electrode and an electrolyte of the alkali metal solid-state battery through a scanning electron microscope; and S2, carrying out structure evolution characterization on an interface of the positive electrode, the negative electrode and the electrolyte of the alkali metal solid-state battery through synchrotron radiation X-ray diffraction. According to the method for in-situ observation of the alkali metal solid-state battery, the scanning electron microscope is combined with the synchrotron radiation X-ray diffraction, so that the defect that a traditional in-situ characterization method is single is overcome, and morphology, morphology and morphology of an air-sensitive alkali metal solid-state battery electrode and an electrolyte contact interface under the conditions of different working currents, voltages and temperatures are realized. And comprehensive and accurate real-time characterization and analysis of components and structures are realized.

The invention relates to a thermal barrier coating thermodynamic coupling field synchrotron radiation in-situ characterization device which comprises a base and a stretching instrument, a heating device, a cooling device and a powder feeding device which are arranged on the base, the stretching instrument is used for applying a stretching load to a sample, the heating device is used for heating the sample, and the cooling device is used for cooling the sample. The cooling device is used for cooling the back surface of the sample, so that the temperature of the back surface of the sample is lower than that of the front surface of the sample, and the interior of the sample has a temperature gradient; the powder feeding device is used for providing powder for the sample, so that the sample is in a powder corrosion state. According to the thermal barrier coating thermodynamic coupling field synchrotron radiation in-situ characterization device, the high temperature, thermal gradient, tensile load and corrosion service environment of a thermal barrier coating can be simulated at the same time, and the thermal barrier coating thermodynamic coupling field synchrotron radiation in-situ characterization device is very close to the real service environment.

The invention relates to a multi-principal element alloy local lattice distortion measurement method based on a synchrotron radiation X-ray atom pair distribution function, which comprises the following steps: preparing an experimental material, and collecting two-dimensional diffraction data by using synchrotron radiation high-energy X-rays; separating local and average structure information through an atom pair distribution function; and verifying local distortion causes by combining structure fitting and DFT supercell relaxation. According to the method, the accuracy of capturing the local distortion of the atomic scale can be improved, the integrity of statistical information of the local structure distortion of the quantitative characterization material can be fully supplemented, and high-precision measurement and quantitative analysis of dynamic distortion can be systematically realized.

The invention relates to an in-situ XAFS reaction tank for photocatalytic reaction and a use method, and belongs to the technical field of material characterization. The in-situ XAFS reaction tank for the photocatalytic reaction is used for gas-solid in-situ X-ray absorption of a fine structure spectrum. The in-situ XAFS reaction tank comprises a reaction tank body and a top plate, the reaction tank body is mounted on the top plate, and a sample window and two light path windows are arranged on the reaction tank body; the sample window is used for placing a to-be-tested sample, the first light path window is used for transmitting a catalytic light source, and the second light path window is used for transmitting X-rays. The in-situ XAFS reaction tank disclosed by the invention can well meet the requirements of a gas-solid in-situ X-ray absorption fine structure spectrum test, and can be used for simultaneously collecting transmission and fluorescence signals and applying the signals to an in-situ photocatalytic reaction system, so that the limitation of the existing off-line test is broken through; and the application of a synchrotron radiation X-ray absorption fine structure spectrum technology in gas-solid phase photocatalytic reaction research is widened.

The invention relates to a multi-principal element alloy local lattice distortion measurement method based on a synchrotron radiation X-ray atom pair distribution function, which comprises the following steps: preparing an experimental material, and collecting two-dimensional diffraction data by using synchrotron radiation high-energy X-rays; separating local and average structure information through an atom pair distribution function; and verifying local distortion causes by combining structure fitting and DFT supercell relaxation. According to the method, the accuracy of capturing the local distortion of the atomic scale can be improved, the integrity of statistical information of the local structure distortion of the quantitative characterization material can be fully supplemented, and high-precision measurement and quantitative analysis of dynamic distortion can be systematically realized.

The invention discloses a monochromator preparation method and a monochromator, and belongs to the technical field of synchrotron radiation. The method comprises a crystal polishing step, a step of calibrating an intersection line of a crystal lattice surface and the crystal surface and cutting to enable the calibrated crystal lattice surface and the crystal surface to be approximately parallel, a step of polishing the crystal surface to enable the crystal surface to be completely parallel to the crystal lattice surface, a bonding step and a detection step, and the monochromator is prepared by using the method. According to the invention, a bonding technology of two crystals with perfect surface polishing and a high-precision polishing method of the crystals are utilized to prepare a bonding type channel-cut monochromator device capable of being used for perfect X-ray imaging, and the problems of stability and non-uniform light beam distribution in an existing monochromator are solved.

To solve the problem of a radiation pyrometer that its measurable temperature range is limited because the measurable radiance range of a radiation temperature measurement sensor for measuring the radiance of radiant light is limited.MEANS FOR SOLVING THE PROBLEM: Provided is a radiant light temperature measuring device that uses a liquid crystal shutter and / or a rotatable polarizing plate in order to adjust the radiant flux density of radiant light radiated from a temperature measurement object so as to increase or decrease at a discretionary ratio, selects a conversion function held in correspondence to a ratio at which radiant flux density is adjusted, and calculates a temperature on the basis of the selected conversion function and the measured radiance.SELECTED DRAWING: Figure 1

The utility model relates to the field of batteries, and discloses a battery in-situ test sample cell, which comprises a first shell and a second shell, a first accommodating cavity with one closed end is arranged in the first shell, the first accommodating cavity is used for accommodating a sample to be tested, and the second shell covers the first shell so that the other end of the first accommodating cavity is closed. The top of the second shell is provided with an observation window, the observation window can observe the to-be-tested sample in the first containing cavity through the observation channel, an annular second containing cavity is formed outside the first containing cavity, and a semiconductor temperature control chip is installed in the second containing cavity. The device can be combined with synchrotron radiation analysis and gas product detection, has a lateral visual observation function, is reasonable in whole structural design and high in compatibility, can stably operate in a temperature range of-20 DEG C to 70 DEG C, and is adaptive to various in-situ characterization platforms.

The invention provides a synchrotron radiation scanning imaging system which comprises a first support, a second support and a third support, a through hole is formed in the first support so that X-rays input from the outside can penetrate through the through hole, and the first support is provided with a diffraction assembly, a first lens and a second lens, the diffraction assembly is installed on the first support and used for diffracting the X-rays and focusing the X-rays to obtain X-ray focusing light spots; the sample assembly is used for bearing samples; the laser interference assembly is used for emitting emission laser and receiving reflection laser, calculating an optical path difference generated by vibration between the emission laser and the reflection laser, and converting the optical path difference into a first electric signal; the controller is connected with the laser interference assembly and the sample assembly, and the controller is used for controlling the sample assembly to move based on the first electric signal, so that the X-ray focusing light spot is aligned with the sample for radiation, and an X-ray radiation signal is obtained; and the detection assembly is used for performing laminated coherent diffraction imaging or scanning transmission X-ray microscopic imaging on the sample through the X-ray radiation signal.

The invention relates to the technical field of synchrotron radiation experiments, in particular to an XAFS automatic sample changing device integrating light intensity management and an operation method.The XAFS automatic sample changing device integrating light intensity management comprises an optical filter wheel, a sample table and a control assembly, the optical filter wheel and the sample table form an integrated structure used for XAFS experiments, the sample switching process is matched with the incident X-ray light intensity adjusting process, and the XAFS automatic sample changing device integrating light intensity management is achieved. Therefore, light intensity management is realized in an automatic sample changing process; an optical filter wheel capable of automatically switching, a sample table capable of accurately positioning and a temperature monitoring and remote control system cooperating with the sample table are introduced into a synchrotron radiation X-ray optical path, so that the photon flux incident on a sample can be optimized in real time according to the signal state of a detector and the thermal load of an optical filter; the stability, repeatability and safety of an XAFS experiment are remarkably improved while signal saturation and equipment overheating are avoided, so that manual intervention is reduced, the debugging time is shortened, and the operation efficiency of a whole light beam line is improved.

The invention provides an in-situ mechanical detection rack, device and method for a synchrotron radiation light source. The in-situ mechanical detection rack comprises an output power part, a transmission part, a sensing part, a heat dissipation part and a supporting part. The in-situ mechanical detection device comprises an in-situ mechanical detection rack, a controller and terminal control software. The ball screw which is integrally ground and formed in a left-and-right rotating mode has extremely high collimation degree and precision, rigid fixation is applied to the two ends of each stage of worm and gear transmission shaft, and the situation that the screw connected with a worm gear deforms due to shearing force provided by a worm is avoided. The heat dissipation system for the motor avoids the problems of sensor temperature excursion, unstable working condition of the motor, thermal expansion of a sample and the like caused by heat accumulation of the rack. Due to the sitting type layout, the stable base, the holes in the specific positions and the small instrument size, the device can be perfectly matched with the experiment conditions of a synchrotron radiation laboratory. The in-situ mechanical detection rack and the in-situ mechanical detection device can be directly used for carrying out synchrotron radiation in-situ mechanical detection operation.

The invention relates to the field of batteries, and discloses a battery in-situ testing device suitable for a wide temperature range, the battery in-situ testing device comprises a first shell and a second shell, the first shell is internally provided with a first accommodating cavity with one closed end, the first accommodating cavity is used for accommodating a to-be-tested sample, the second shell covers the first shell so that the other end of the first accommodating cavity is closed, and the first accommodating cavity is used for accommodating the to-be-tested sample. The top of the second shell is provided with an observation window, the observation window can observe a to-be-tested sample in the first accommodating cavity through the observation channel, an annular second accommodating cavity is arranged outside the first accommodating cavity, a temperature control part is arranged in the second accommodating cavity, and the temperature control part controls the test temperature of the first accommodating cavity based on the Peltier effect. The sample cell provided by the invention is suitable for wide temperature range conditions, can be combined with synchrotron radiation analysis and gas product detection, has a lateral visual observation function, is reasonable in overall structural design and high in compatibility, can stably operate in a temperature range of-20 DEG C to 70 DEG C, and is adaptive to various in-situ characterization platforms.

The invention discloses a design method of an electrochemical in-situ charging and discharging device based on synchrotron radiation USAXS characterization, and belongs to the field of in-situ real-time measurement equipment for microstructure changes of battery materials during charging and discharging. The technical scheme is used for solving the problems that the existing electrochemical test method cannot accurately and timely reflect the internal structure change of the battery, and the existing detection method cannot observe the large-size cluster (gt; by means of the testing method, in-situ and real-time observation of microscopic changes of the electrode material and the electrolyte during charging and discharging can be achieved.

A synchrotron radiation X-ray on-line research injection mold capable of rapidly switching forming mold cores comprises a fixed mold part, a movable mold part and a heating assembly, the movable mold part is located below the fixed mold part, and the demolding process of injection molding is completed in the mode that parting of an inclined sliding block is matched with ejection of an ejector rod. Comprising an incident side sliding block and an emergent side sliding block which form an injection cavity in a spliced mode, and a transparent window which allows an X-ray beam to penetrate through and does not generate interference is formed in the side wall of the injection cavity; a pressure sensor and a temperature sensor are installed on the incidence side sliding block and used for monitoring technological parameters in real time, and a sample mold core plate and a variable-thickness insert which can be rapidly switched are arranged in the emergence side sliding block. According to the injection mold disclosed by the invention, due to the existence of the mold core plate and the insert which can be quickly replaced, the manufacturing cost and the replacement time of the mold can be reduced, the production flexibility and efficiency are improved, and the injection mold can be combined with a synchrotron radiation X-ray experiment station for in-situ research on a polymer physical phenomenon of a polymer injection product under unbalanced and nonlinear processing.

The utility model discloses an in-situ synchrotron radiation device for testing a core element of a thin film capacitor, and belongs to in-situ synchrotron radiation testing equipment. In order to achieve in-situ synchrotron radiation testing of a core element of the thin-film capacitor, the core element is installed in a containing cavity of a shell, a temperature control mechanism is installed on the shell and adjusts the temperature of the containing cavity of the shell, and a high-voltage polarization power source is connected with the two ends of the core element to apply voltage. The pressure regulating mechanism comprises two pressure regulating plates and a pressure regulating driving assembly, the two pressure regulating plates are respectively mounted on two sides of the core element, and the pressure regulating driving assembly is connected with the two pressure regulating plates and regulates the distance between the two pressure regulating plates; the synchrotron radiation light source and the signal receiving plate are respectively arranged at two sides of the shell, two side walls of the shell are respectively provided with a light hole I, each pressure regulating plate is provided with a light hole II, the synchrotron radiation light source emits x-rays, the x-rays irradiate the core element, and then the x-rays are received by the signal receiving plate. The device is used for realizing the in-situ synchrotron radiation test of the core element.

The invention relates to a micro-channel flow boiling in-situ measurement method, which comprises the following steps of: 1) establishing a micro-channel flow boiling test system (17), and testing to ensure the sealing performance and the stability of the test system; 2) building a synchrotron radiation X-ray imaging system; 3) performing a pre-test to ensure that synchrotron radiation X-rays can penetrate through the micro-channel, pass through the scintillation crystal (3) and the reflector (4) and then are received by the high-speed camera; (4) micro-channel flow boiling tests under different test working conditions are carried out, and after it is monitored that the wall surface temperature reaches an approximate steady state, the synchrotron radiation X-ray imaging system is used for shooting the flow boiling phenomenon in the micro-channel; meanwhile, a temperature and pressure sensor in the micro-channel flow boiling test system is used for collecting wall surface temperature and inlet and outlet pressure, and in-situ measurement results of the wall surface temperature and the inlet and outlet pressure are obtained. Compared with the prior art, the method has the advantages of solving the problem of view angle limitation existing in a micro-channel flow boiling observation means and the like.

The invention provides a freezing soft X-ray imaging method of a biomolecule aggregate based on a synchrotron radiation device and application of the freezing soft X-ray imaging method. The method comprises the following steps: adding a biomolecule aggregate solution on a carrier net, carrying out natural sedimentation, removing redundant liquid, carrying out rapid freezing, and carrying out low-temperature soft X-ray imaging based on a synchrotron radiation imaging line station after freezing, the biomolecules are biomolecules capable of generating a phase separation behavior; the biomolecules are selected from any one or a combination of at least two of protein, nucleic acid molecules or polysaccharide molecules; and the energy range of the soft X rays is 280 to 520 eV. According to the method disclosed by the invention, the morphology imaging of the complete biomolecular aggregate can be realized under the conditions of no marking and no slicing. Furthermore, the instantaneous structure of the aggregate can be more truly preserved by a freezing immobilization method in which the solution / cell containing the aggregate is rapidly frozen in liquid nitrogen compared to chemical immobilization.

The invention provides a method for simulating and measuring phase volume fraction change in a metal material additive manufacturing process. The method comprises the following steps: preparing a sample; mounting the sample to an experimental device; performing cyclic heat treatment on the sample to simulate an additive manufacturing process, and acquiring synchrotron radiation X-ray two-dimensional diffraction patterns of the sample at different moments; converting the two-dimensional diffraction pattern into a one-dimensional diffraction pattern; and refining the one-dimensional diffraction pattern by using a Rietveld method to obtain a change chart of the volume fraction of each phase of the sample along with time. According to the method, the heating process of a lower-layer material in the additive manufacturing process is simulated by conducting cyclic heat treatment on the material, the phase change of the material is detected through synchrotron radiation X-rays, and the complex unbalanced solid-state phase change of the lower-layer material in the additive manufacturing process of a metal material can be researched in situ; and then the additive manufacturing process is optimized in an auxiliary mode, and the alloy performance is regulated and controlled.

The utility model discloses an electrochemical reaction tank for a hard X-ray absorption spectrum in-situ dual-mode test. The electrochemical reaction tank comprises a reaction tank body, a working electrode, a reference electrode and a graphite counter electrode, the front plate is provided with a working electrode window, and the upper plate is provided with a reference electrode hole and a graphite counter electrode hole. The working electrode is arranged at the window of the front plate and is tightly attached to the reaction tank body through a polyimide adhesive tape, and the reference electrode and the graphite counter electrode are arranged on the two sides of the reaction tank body and are respectively connected with an external electrochemical working platform. The distance between the working electrode window and the rear plate is controlled, and the working electrode is coupled with synchrotron radiation X-ray incident light, a fluorescence signal and a transmission signal to form an X-ray dual-mode test channel. The advantages of a synchrotron radiation X-ray absorption spectrum measuring platform are fully utilized, a real in-situ electrochemical detection environment is simulated, and reliable fluorescence and transmission signals are collected at the same time.

The utility model relates to an in-situ synchrotron radiation transmission type XAS battery testing device, which comprises a battery mould, the battery mould comprises a sealing cover, a main shell and a base, the sealing cover comprises a sleeve part inserted into the main shell, a first beryllium window is arranged at the lower end of the sleeve part, the base is fixedly arranged at the lower end of the main shell, and a second beryllium window is arranged in the middle of the base. A sealed space for containing the battery assembly is formed among the sleeve part, the main shell and the base, the upper side of the battery assembly is provided with a negative electrode making contact with the first beryllium window, and the lower side of the battery assembly is provided with a positive electrode making contact with the second beryllium window. And the base is provided with a positive lead connected with the charge-discharge instrument. According to the in-situ synchrotron radiation transmission-type XAS testing device, the combination of an electrochemical performance test and an in-situ synchrotron radiation transmission-type XAS test is realized, and the negative lead and the positive lead are respectively connected to the limiting flange part at the upper end of the sealing cover and the base, so that the sealing performance of an internal electrochemical cell cannot be damaged.

The invention discloses a translational photon optical shutter device capable of being combined with multiple inserts, and the device is characterized in that the device comprises an optical shutter switching assembly, a vacuum chamber, a driving mechanism, and a hinge assembly; the optical shutter switching assembly and the hinge assembly are installed in the vacuum chamber, and the driving mechanism is located outside the vacuum chamber. The driving mechanism drives the optical shutter switching assembly to do reciprocating translation through the hinge assembly and is used for switching control over light passing and light blocking of synchrotron radiation light. An absorber is arranged in the optical shutter switching assembly, the top of the absorber is a light receiving face, and the light receiving face comprises a plurality of inclined faces which are obliquely upward in the incidence direction of synchrotron radiation light and used for blocking the synchrotron radiation light generated by various insertion pieces at the same time. The design of the multi-inclined-plane absorber can block synchrotron radiation light generated by various inserts at the same time, so that the valuable axial space occupied by the device in a light beam line is effectively shortened, and a solid technical basis is provided for the design and layout optimization of the light beam line combined by multiple inserts.

The invention relates to the technical field of spectral measurement and analysis, and discloses an in-situ cell for rapid and continuous synchrotron radiation X-ray absorption spectrum measurement, the in-situ cell comprises a housing 1, one side of the housing 1 is provided with two through holes, and a counter electrode and a reference electrode are respectively fixed in the two through holes; the first shell and the second shell are correspondingly arranged, and square optical windows are arranged in the center of the second shell and the center of the first shell; the first shell and the second shell are each provided with a hole channel, the two hole channels are located on the two sides of the square optical window respectively, and a working electrode is fixedly arranged between the second shell and the first shell. The in-situ synchrotron radiation X-ray absorption spectrum measuring device is suitable for in-situ synchrotron radiation X-ray absorption spectrum measurement in a time-resolved energy dispersion / transmission mode, and through real-time supply and circular flow of the electrolyte on the surface of the working electrode, the uniformity of the X-ray penetrating through a solution layer is ensured, the elimination of product gas is accelerated, the influence of solution disturbance on a test signal is reduced, and the test stability is improved.

The application discloses a high-frequency shielding bellows and a synchrotron radiation accelerator with the same, which comprises a bellows outer tube extending along a first direction; a shielding tube arranged on the radially inner side of the bellows outer tube and comprising two beam flow pipes extending along the first direction and arranged at intervals in the first direction, and the opposite ends of the two beam flow pipes are fixed with the bellows outer tube respectively; and a sliding unit comprising a sliding piece extending along the first direction, the sliding piece being a conductive piece, and the two ends of the sliding piece are configured to be always slidably attached to the beam flow pipe on the same side along the first direction. According to the high-frequency shielding bellows, when the electron beam flows, a continuous mirror wall current path can be formed, good electrical contact is maintained, high-order mode leakage and electron beam instability are effectively inhibited, and the heating phenomenon caused by the excessive wall resistance of the bellows outer tube can be avoided, so that the reliability of the high-frequency shielding bellows is significantly improved.

The invention belongs to the technical field of synchrotron radiation light sources, and discloses a serial impact magnet device which comprises a shell assembly, a positive pulse electrode, a negative pulse electrode and a strip magnet. The shell assembly comprises a shell body and a side end cover which are detachably connected, and a magnetic core space is formed between the shell body and the side end cover. The positive pulse electrodes extend into the magnetic core space and are arranged at intervals. The negative pulse electrodes extend into the magnetic core space and are arranged opposite to the positive pulse electrodes, and the multiple negative pulse electrodes are arranged at intervals. The strip magnets are arranged in the magnetic core space, the strip magnets are connected between every two adjacent positive pulse electrodes, the strip magnets are connected between every two adjacent negative pulse electrodes, and the two strip magnets are spaced from each other to form a magnetic field space. The electron beam current can be transmitted in the magnetic field space. The tandem impact magnet device can improve the compact degree and the vacuum degree, facilitates the assembly of an internal structure, and can meet the injection requirements of electron beams of a synchrotron radiation light source.

The invention discloses a seawater environment biaxial mechanical loading device based on synchrotron radiation X-ray diffraction, and belongs to the technical field of material testing in a seawater environment. Comprising a ray generator, and a slit, a mechanical loading device and a detector are sequentially arranged along a light path of the ray generator; a seawater environment box is arranged in the center of the mechanical loading device, and a three-dimensional adjusting platform is arranged below the mechanical loading device; by adopting the structure, in-situ characterization and analysis of corrosion product evolution at the crack are realized under the near-service working condition of a complex stress state and a seawater corrosion environment, and a technical support is provided for revealing a microcrack corrosion failure mechanism of a marine material under the near-service working condition.

The invention belongs to the technical field of micro-nano processing, and particularly relates to a Pt-HSQ-based high-resolution X-ray Fresnel zone plate and a preparation method thereof. According to the X-ray Fresnel zone plate, a Pt-HSQ metal-inorganic material system is adopted, a diffraction structure with a large aspect ratio and Pt material quasi-periodic dense stripes specially needed by an X-ray zone plate lens is formed through electron beam lithography and an ALD process, and diffraction focusing from a soft X-ray wave band to a hard X-ray wave band and imaging with an amplification function are achieved. The wave zone plate has excellent mechanical stability, and the irradiation resistance and morphology retentivity of the wave zone plate under high-energy irradiation are remarkably improved. And high-resolution X-ray focusing elements with different energy wavebands and different focal lengths can be prepared according to geometric design and material selection of the wave zone plate. The lens is suitable for microscopic imaging, coherent diffraction imaging, X-ray spectrum, nanometer detection and other scenes of a synchrotron radiation or off-line laboratory X-ray light source, and has wide popularization value and application prospect.