96 results about "Synchrotron radiation" patented technology

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 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 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 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 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 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.

This application relates to the field of lasers and discloses a reflector module, a synchrotron radiation device, and a free-electron laser device. The module includes a mirror body, a cooling component, and a heating component. The cooling component is connected to the mirror body and disposed on a first surface, used to reduce the temperature of the reflecting surface. The heating component is connected to the cooling component and used to compensate for the temperature of the reflecting surface. The heating component includes a heat-conducting block and a heating plate. This application utilizes a heat-conducting block connected to the cooling component and protruding from the reflecting surface along a third direction. A heating plate is disposed on the surface of the heat-conducting block facing the mirror body along a second direction. The heating component provides localized temperature compensation for the reflecting surface, which, combined with the uniform cooling of the cooling component, effectively reduces the localized high thermal gradient and non-uniform thermal expansion deformation of the reflecting surface caused by changes in the beam position.

The application relates to an in-situ XAFS reaction cell for a photocatalytic reaction and a use method, and belongs to the technical field of material characterization. The in-situ XAFS reaction cell for the photocatalytic reaction is used for gas-solid in-situ X-ray absorption fine structure spectrum, and the in-situ XAFS reaction cell comprises a reaction cell body and a top plate; the reaction cell body is installed on the top plate, sample windows and two light path windows are arranged on the reaction cell body; the sample windows are used for placing samples to be tested, wherein 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 cell can well adapt to the needs of gas-solid in-situ X-ray absorption fine structure spectrum testing, simultaneously collect transmission and fluorescence signals and be applied to an in-situ photocatalytic reaction system, breaks through the limitation of existing offline testing, and widens the application of a synchrotron radiation X-ray absorption fine structure spectrum technology in gas-solid phase photocatalytic reaction research.

The invention discloses a natural gas hydrate CT image threshold segmentation method and a storage medium, and belongs to the technical field of natural gas hydrate detection.The method comprises the steps that S1, a natural gas hydrate sample image obtained through synchrotron radiation CT scanning is obtained, the image is preprocessed, and a central area image is obtained; s2, performing edge recognition on the preprocessed central region image by using a convolutional neural network and combining a Sobel operator to obtain an edge feature matrix; s3, clustering the edge feature matrix by adopting a KMeans clustering algorithm, and determining gray boundary values of the solid particles and the methane bubbles; s4, removing gray scale parts of solid particles and methane bubbles in the image according to the gray scale boundary value, and performing maximum and minimum normalization processing on the residual gray scale values of water and hydrates to obtain a gray scale probability density; and S5, drawing a normalized gray probability density map according to the gray probability densities of all the images, and determining a threshold segmentation range of the hydrate according to the probability density peak displacement. The method can automatically extract the hydrate threshold range, and improves the segmentation precision.

The invention discloses a synchrotron radiation hard X-ray electron coupling nanoscale high spatial resolution detection method. The method comprises the following steps: 1) selecting synchrotron radiation hard X-rays as a light source; selecting a matched light source energy interval according to the material and thickness of the sample; 2) according to the selected synchrotron radiation hard X-ray energy, selecting a point spread function with high quantum efficiency, a small point spread function and a narrow emission electron spectrum, and calculating a corresponding photocathode material and thickness; 3) detecting the sample by using the light source and the photocathode determined in the above step to obtain a synchrotron radiation hard X-ray transmission image carrying sample structure information, and incidence the synchrotron radiation hard X-ray transmission image on the photocathode; the photocathode emits electrons under the action of incident photons, converts an X-ray transmission signal into an electronic signal, inputs the electronic signal into the electronic imaging system for focusing, amplifying and imaging, and inputs the electronic signal into the imaging recording system; and 4) obtaining a detection result of the sample according to the image recorded by the imaging recording system.

The invention discloses a tension-torsion multi-axial fatigue experiment device and method based on synchrotron radiation and neutrons. The experimental device comprises a base, a lower cavity, an acrylic / aluminum alloy projection window, an upper cavity, a supporting rod, a supporting plate, a hydraulic actuator, an upper connecting rod, a load sensor, an upper clamp, a multi-axial fatigue sample, a lower clamp, an angle sensor, a lower connecting rod, a torsion servo motor, a motor controller, an advanced light source receiver, an advanced light source entrance slit and the like. And performing macroscopic three-dimensional damage distribution characterization and microstructure evolution and damage evolution process experiments in the sample by penetrating the metal sample through X-rays and neutron beams. The method provides direct and reliable experimental data support for establishing a multi-axial fatigue theoretical model, revealing a material failure mechanism and engineering structure anti-fatigue design.

This invention provides a crystallization plate suitable for in-situ X-ray diffraction of biomolecules, comprising: a body and multiple crystallization units formed within the body; each crystallization unit includes a through-hole and a frustum-shaped sample slot support within the through-hole; the lower bottom surface of the frustum-shaped sample slot support is connected to the lower bottom surface of the through-hole, and the upper bottom surface of the frustum-shaped sample slot support is located between the upper top surface and the lower bottom surface of the through-hole; the side surface of the frustum-shaped sample slot support and the side surface of the through-hole form a crystallization buffer bath. The crystallization plate of this invention is applicable to in-situ testing of biomolecular crystals, and features simple operation, good compatibility, high efficiency, and low cost. It can greatly facilitate the rapid collection of single-crystal diffraction data or drug screening at synchrotron radiation crystallography beamlines under room temperature in-situ conditions.

The invention belongs to the technical field of biological sample experiments, and particularly relates to a synchrotron radiation infrared spectrum miniature vacuum device for biological sample experiments, which comprises a vacuumizing mechanism and a sealing cover, the vacuumizing mechanism comprises a tray, a sealing box, a support pad, a gas pipe, a miniature nitrogen cylinder, a gas flow controller, a miniature vacuum pump and a control valve, a sealing box is arranged at the top of the tray, a supporting pad is arranged at the bottom of an inner cavity of the sealing box, the left side and the right side of the sealing box are communicated with air pipes, and the outer end of the air pipe on the right side is connected with a miniature nitrogen cylinder. Or the sealing box is slowly filled with the nitrogen in the micro nitrogen cylinder, so that the sealing box is filled with the nitrogen, the synchrotron radiation infrared spectrum test can be conveniently carried out, result bias is avoided, a treatment mode can be selected according to requirements, and the application range is expanded.

The invention provides an adjustable tapering undulator and device based on beat frequency superposition and a method for broadening a spectrum, and is applied to the technical field of synchrotron radiation and the technical field of free electron laser. The undulator comprises a first magnetic array structure which comprises a plurality of groups of first permanent magnet units and is used for generating a first magnetic field; the second magnetic array structure comprises a plurality of groups of second permanent magnet units and is used for generating a second magnetic field; the phase shift driving structure is used for responding to a target superposed magnetic field after the beat frequency superposition of the first magnetic field and the second magnetic field, and determining the beat frequency magnetic period length of the target superposed magnetic field according to the first magnetic period length and the second magnetic period length; and according to the tapering requirement of the undulator, determining a target phase shift from a target beat frequency envelope constructed based on the attribute parameters of the adjustable tapering undulator and the beat frequency magnetic period length, and driving the phase shift driving structure to enable the first magnetic array structure and / or the second magnetic array structure to translate along the advancing direction of the electron beam.

This invention discloses a high-precision white light adjustable aperture device for various operating conditions. It is characterized by comprising two absorber assemblies, each with an absorber assembly attitude adjustment mechanism, a two-dimensional precision displacement system, and a two-dimensional precision displacement system adjustment mechanism located below it. The upstream and downstream absorber assemblies are used to receive synchrotron radiation and adjust its exit angle. The two-dimensional precision displacement system adjustment mechanism is used to adjust the attitude and height of the two-dimensional precision displacement system. The two-dimensional precision displacement system is used to control the horizontal and vertical displacement of the absorber assembly. The absorber assembly attitude adjustment mechanism is used to adjust the attitude of the absorber assembly. This invention can simultaneously receive multiple types of synchrotron radiation, achieving the function of using a single adjustable aperture device to handle multiple different operating conditions within the limited space of the front-end area.

The utility model discloses a punching and grounding coplanar waveguide structure suitable for synchrotron radiation X-ray measurement. The punching and grounding coplanar waveguide structure comprises a dielectric substrate, a first metal surface layer and a second metal surface layer, wherein the first metal surface layer and the second metal surface layer are respectively positioned on the upper surface and the lower surface of the dielectric substrate; a coplanar waveguide signal conductor is arranged in the first metal surface layer; a non-metal through hole is formed in the middle of the dielectric substrate, and a plurality of metalized through holes for connecting the first metal surface layer and the second metal surface layer are formed in the periphery of the dielectric substrate; one end of the coplanar waveguide signal conductor is in direct short-circuit connection with the first metal surface layer to form a microwave magnetic field stagnation point, and the other end is separated from the first metal surface layer through a gap. According to the utility model, through the design of the coplanar waveguide signal conductor of which the single end is directly short-circuited and grounded and the non-metal through hole close to a microwave magnetic field stationary point, excellent microwave magnetic field stability is realized in a broadband range, the microwave magnetic field intensity is obviously enhanced, and the sensitivity and the resolution of synchrotron radiation X-ray measurement are improved.

This technology provides a way to suppress the decrease in accuracy of temperature measurements. [Solution] A wavelength selection method for a system that measures temperature based on a first optical component and a second optical component spectrally separated from synchrotron radiation of an object to be measured 100, comprising the steps of: obtaining a first spectral emissivity showing the relationship between wavelength and emissivity at a first temperature, and a second spectral emissivity showing the relationship between wavelength and emissivity at a second temperature different from the first temperature, for a reference object of the object to be measured 100; obtaining a wavelength band in which the difference between the emissivity of the reference object at the first temperature and the emissivity of the reference object at the second temperature is less than or equal to a predetermined threshold, based on the first and second spectral emissivity; and selecting the first wavelength and the second wavelength from the wavelength band.

The present application relates to a kind of high-efficiency evaluation and verification method of super-saturation limit state of high-temperature alloy powder, comprising the following steps: 1) using synchrotron radiation to detect the γ' phase precipitation of powder of different particle sizes of the same component;2) then use nano-hardness to determine the hardness value of the powder of upper and lower particle sizes of super-saturation limit, and determine the super-saturation limit state of powder by hardness, specifically comprising the following steps: using nano-hardness indentation to determine the hardness value of high-temperature alloy powder of different particle sizes, including γ' and trace phase precipitation and not γ' and trace phase precipitation powder;Determine the hardness value of the powder of upper and lower particle sizes of super-saturation limit state;Measure the nano-hardness of free solidification high-temperature alloy powder or high-temperature alloy bulk material after additive manufacturing, and compare with the hardness of super-saturation state powder, and use the nano-hardness test results of high-temperature alloy powder of this component as the basis for efficient evaluation of super-saturation limit state of powder.The present application has high detection sensitivity and good result accuracy.

The application relates to the technical field of synchrotron radiation beam lines, in particular to an actively controlled synchrotron radiation focusing mirror device, wherein a horizontal hinge pair and a vertical hinge pair are guiding mechanisms of focusing mirror movement, a rotating driver is a driving, measuring and feedback element of the focusing mirror movement, and an active controller is a control core of an active control motion platform. The actively controlled synchrotron radiation focusing mirror device provided by the application has high control precision and strong disturbance suppression capability, and can realize milliradian stroke and nanoradian level resolution key indicators.

The invention discloses a multi-modal data intelligent processing method for synchrotron radiation. The method comprises the following steps: 1) developing an MDW plug-in based on a Fiji software platform; the MDW plug-in comprises a function panel, and the function panel is provided with a refreshing window list button which is used for acquiring a frame sequence of the currently opened synchrotron radiation; (2) loading and opening the MDW plug-in in Fiji software; (3) the MDW plug-in executes corresponding processing on the frame sequence according to the frame sequence processing mode selected by a user through the function panel; wherein the processing mode comprises one or more of the following modes: module export, background deduction, three-dimensional clipping, sequence processing, common functions, standard deviation calculation, PSD curve calculation and user-defined curve drawing. According to the invention, scientific researchers can efficiently and intuitively understand and process experimental data, so that the analysis efficiency and research value of scientific experimental data are remarkably improved.

The application provides a kind of plasma extreme ultraviolet light source driven by high-order harmonic of synchrotron radiation, including target material from target material generator, and synchrotron radiation generating device aiming at target material, synchrotron radiation generating device is set to introduce and irradiate high-order harmonic synchrotron radiation main pulse to plasma, the plasma extreme ultraviolet light source further includes plasma generating device generating and emitting ionized target material beam to target material to obtain plasma, and the beam is high-power laser or high-energy synchrotron radiation pre-pulse.The plasma extreme ultraviolet light source of the application uses synchrotron radiation with high-order harmonic as driving light source and interacts with plasma, efficiently excites to generate high-power extreme ultraviolet light of certain wavelength, thereby effectively utilizes existing synchrotron radiation light source waste wave, realizes high-power output of extreme ultraviolet light.

This invention relates to the field of synchrotron radiation optical elements and discloses an X-ray monochromator device and an adjustment method for the X-ray monochromator device. The device includes: a base assembly; a spectroscopic crystal assembly, including a single-crystal crystal plate and two flexible connectors, the single-crystal crystal plate having a front and a back, the front being configured to face the X-ray incident direction, and the two flexible connectors symmetrically arranged on one side of the back of the single-crystal crystal plate and connecting the single-crystal crystal plate and the base assembly; a deformation detection element, which monitors the curvature change of the single-crystal crystal plate in real time and generates a feedback signal; and a loading mechanism, including at least two force-applying parts, at least two force-applying parts disposed between the two flexible connectors, at least two force-applying parts acting on the back, and the loading mechanism being able to control the at least two force-applying parts to act on the single-crystal crystal plate according to the feedback signal. This invention operates entirely at room temperature, and can achieve continuously adjustable curvature of the single-crystal crystal plate, no thermally induced lattice damage, and high energy resolution.

This invention discloses a one-dimensional polymeric nitrogen chain, its preparation method, and its applications. The one-dimensional polymeric nitrogen chain is an allotrope of nitrogen and has an orthorhombic crystal structure. Cmc The 21-phase structure consists of infinite nitrogen chains extending along a one-dimensional direction, with bond types primarily N=N and N-N, exhibiting a typical serrated [-N=N-N=N-] chain framework. The preparation method involves nitrogen polymerization induced by laser heating under high pressure. In-situ Raman spectroscopy and synchrotron X-ray diffraction experiments characterized the product, confirming the formation of a novel one-dimensional polymerized nitrogen chain. Theoretical calculations indicate that this structure exhibits approximately 2.723 g / cm³ at ambient pressure. 3 It boasts high density and a high energy density of approximately 8.78 kJ / g. This makes it applicable to the field of all-nitrogen energy materials, laying the foundation for the widespread application of novel green high-energy materials.

A component analysis method and system. A sample is excited by a synchrotron radiation beamline to obtain sample charged ions; the sample charged ions are accelerated by an acceleration orbit to obtain sample to-be-tested waves; and the components of the to-be-tested sample are determined by analyzing the sample to-be-tested waves. The synchrotron radiation beamline has the characteristics of high intensity, high collimation, high monochromaticity, wide energy spectrum coverage and high polarization, and the trace and ultratrace components can be accurately detected by exciting the to-be-tested sample by the synchrotron radiation beamline, the detection limit can be reduced to the ppb level or even the ppt level, the high purity requirement of high-end semiconductor materials on materials can be met, and the synchrotron radiation beamline can be used for material component analysis, the sample loss can be avoided, the real component distribution can be restored, the synchronous detection of multi-element complex components can be realized, and the full component detection of matrix elements, doped elements and trace elements in the material can be realized synchronously.

1. The name of the design product: double crystal monochromator (single station). 2. The use of the design product: for monochromatizing continuous synchrotron radiation. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention provides a high-precision sub-nanometer displacement table. The high-precision sub-nanometer displacement table comprises a guide switching hinge, a displacement zooming driving assembly and a switching frame assembly. The displacement scaling driving assembly comprises a displacement scaling driving hinge and a piezoelectric actuator, the displacement scaling driving hinge is of an integrated sheet structure, the piezoelectric actuator is in contact with the input end of the displacement scaling driving hinge in a magnetic pre-tightening mode, an eccentric hinge structure is arranged in the displacement scaling driving hinge, and the piezoelectric actuator is in contact with the input end of the displacement scaling driving hinge. The displacement scaling driving assembly is used for scaling down the input displacement of the piezoelectric actuator according to the proportion and then outputting the input displacement through the displacement output block, the guide transfer hinge is in hard connection with the displacement output block of the displacement scaling driving assembly, and the transfer frame assembly is used for fixedly installing the guide transfer hinge and the displacement scaling driving assembly. According to the invention, precise positioning requirements under harsh working conditions such as semiconductor manufacturing and synchrotron radiation beam line regulation and control can be met.

An edge radiation thermometer performs measurements before a semiconductor wafer is transported into a chamber. The edge radiation thermometer performs the measurements while the semiconductor wafer is supported by lift pins and while the semiconductor wafer is placed on a susceptor, after the semiconductor wafer is transported into the chamber. A controller calculates a reflectivity of the semiconductor wafer based on these measurement values. Then, the controller calculates an intensity of an ambient light receive by the edge radiation thermometer, based on the reflectivity and an intensity of synchrotron radiation radiated from a quartz window. Subsequently, the controller subtracts the intensity of the ambient light from an intensity of light received by of the edge radiation thermometer during heat treatment on the semiconductor wafer to calculate the temperature of the semiconductor wafer.

The utility model relates to the field of batteries, and discloses an auxiliary device for testing the performance of a battery, which comprises a rotatable turntable, the turntable is connected with a driving piece, n sampling sites are uniformly arranged on the turntable along the circumferential direction, n is greater than or equal to 2, each sampling site is provided with a circular light through hole, and a clamp is arranged on the turntable on one side of each sampling site. The clamp is used for clamping a to-be-tested sample and is provided with a conductive piece used for being electrically connected with the to-be-tested sample. According to the utility model, the plurality of perforated button batteries are arranged on the rotatable turntable, so that the batteries can move to fixed sampling positions in turn according to a set time sequence in a low-rate charging and discharging process to carry out synchrotron radiation transmission sampling, the machine-hour utilization rate is remarkably improved, and continuous in-situ testing of multiple samples is realized.