33 results about "Streak camera" patented technology

The invention belongs to the field of optical elements, and relates to an X-ray streak camera diagnostic system aiming device and method, and the device comprises a long-focus microscope, a simulation target, a simulation cathode device, a supporting platform, a first adjusting platform, and a second adjusting platform. The aiming method comprises the following steps: mounting a pinhole camera on a mounting flange of a simulated cathode device; a pinhole head of the pinhole camera is adjusted, so that the view field center of the long-focus microscope, the pinhole head of the pinhole camera and the simulated cathode slit center of the simulated cathode device are collimated; target position coordinates of the simulation target in the image acquired by the CCD camera are determined; disassembling and assembling the pinhole camera to an X-ray streak camera diagnosis system, and adjusting the position coordinates of the target in the CCD field of view to the target position coordinates; rapid aiming of the X-ray streak camera on a large laser device under the vacuum off-line condition is achieved.

The invention belongs to a splicing device, and provides an X-ray streak camera slit splicing device and a using method thereof in order to solve the technical problems that according to an existing X-ray streak camera cathode slit manufacturing method, the slit width is limited, the machining cost of a slit with a special size is high, and the survival rate of the machined slit is low. Comprising a displacement adjusting assembly, a slit blade displacement sliding table and a supporting frame body, the displacement adjusting assembly comprises an adjusting gear and a displacement measuring piece installed on the adjusting gear and used for displaying the adjusting amount of the adjusting gear, and the slit blade displacement sliding table comprises a first displacement piece and a second displacement piece which are used for fixing two slit blades respectively; the relative movement between the first displacement piece and the second displacement piece is adjusted through the adjusting gear in a gear and rack transmission mode, and the first displacement piece and the second displacement piece are in sliding fit with the supporting frame body. The adjustment time is shortened, and the efficiency and quality of X-ray streak camera slit splicing are greatly improved.

The present application relates to the technical field of laser imaging, and in particular to a high-precision dynamic coupling method and device for a variable-tapered curved crystal and an X-ray streak camera, the method comprising: under the same optical path, respectively irradiating a variable-tapered curved crystal with a visible light source and X-rays, so that the variable-tapered curved crystal forms a visible light source focal line and an X-ray focal line on an imaging plate; acquiring position information of the visible light source focal line and the X-ray focal line by means of an image acquisition device, and extracting a focal line relative deviation; coupling the variable-tapered curved crystal and the X-ray streak camera by means of a three-dimensional adjustment mechanism, and continuously irradiating the variable-tapered curved crystal with the visible light source; and adjusting the position of the variable-tapered curved crystal by means of the three-dimensional adjustment mechanism according to the image acquisition device and the focal line relative deviation, so that the X-ray focal line coincides with a cathode slit of the X-ray streak camera. The purpose is to achieve high-precision coupling of the variable-tapered curved crystal and the X-ray streak camera.

The present application relates to a kind of dynamic performance calibration systems for streak camera fast scanning gear, mainly used to solve the technical problems that the operation is complex when multiple pulse trains are generated by the existing light splitting and beam combining mode, and the consistency of optical path difference between each light path is difficult to guarantee, and the conventional electrical signal trigger mode exists sway, influence the time resolution capability calibration of streak camera.The present application can simultaneously generate multiple optical pulse trains, and the time interval consistency between multiple optical pulse trains is high.The optical pulse output by the laser is divided into the first light beam transmitted by the beam splitter and the second light beam reflected, the second light beam is input to the fast-response photodiode, and then converted into an electrical pulse to trigger the streak camera to work.The first light beam is input to the streak camera through the F-P standard device, and the streak camera reads the streak image output by the streak camera and analyzes it.The present application also provides a kind of dynamic performance calibration method for streak camera fast scanning gear.

The present application relates to a method, apparatus, computer device, storage medium, and computer program product for detecting vehicle body paint defects. The method comprises: obtaining an initial vehicle body image captured by a streak camera under sinusoidal stripe light; performing defect enhancement on the initial vehicle body image using an optical flow method to obtain a defect-enhanced vehicle body image; performing defect detection on the defect-enhanced vehicle body image to obtain the vehicle body paint defect location in the camera coordinate system; and mapping the vehicle body paint defect location in the camera coordinate system to the vehicle body's three-dimensional coordinate system to obtain the target vehicle body paint defect location. Throughout this process, vehicle body paint defect detection is performed based on the initial vehicle body image captured by the streak camera under sinusoidal stripe light, and the initial vehicle body image is enhanced using the optical flow method, thereby achieving efficient and accurate vehicle body paint defect detection.

The invention relates to an anti-jitter streak camera ToF dynamic three-dimensional shape reconstruction system and method based on distance reference time mark light, and aims to solve the technical problem that the existing streak camera ToF dynamic three-dimensional shape measurement system is easy to have depth measurement error, and the system comprises a pulse light source module, an illumination and imaging module, a streak camera and an industrial control module; the pulse light source module generates pulse light and transmits the pulse light to the illumination and imaging module; the illumination and imaging module processes the pulsed light to form illumination line light and distance reference time mark light, and transmits the illumination line light to a to-be-measured target; the to-be-measured target generates an echo light signal and transmits the echo light signal to the illumination and imaging module; the illumination and imaging module is used for imaging the distance reference time mark light and the echo light signal to the streak camera; the streak camera collects a streak image and transmits the streak image to the industrial control module; and the industrial control module obtains a target measurement depth according to the fringe image, corrects the target measurement depth, and reconstructs a dynamic three-dimensional shape image of the target to be measured according to the corrected target measurement depth.

The present invention provides an ultrafast time-compressed image acquisition method based on on-chip storage, which is used to address the technical problem that the ultrafast compression imaging technology of a streak camera for a target scene is limited by the working principle of the streak tube, resulting in a time resolution of the order of picoseconds to sub-nanoseconds and a low spatial resolution. The method of the present invention comprises: selecting pixel areas with pixel resolutions of M×N and M×L as imaging photosensitive areas and imaging storage areas, respectively; making a pseudo-random mask plate to cover the imaging photosensitive area, and covering the imaging storage area with an opaque mask plate; imaging the target scene on the imaging surface of the imaging photosensitive area; exposing the target scene and performing an initial image, and transferring the image of the imaging photosensitive area as a whole by one row along the charge storage transfer direction; after the transfer is completed, exposing the imaging photosensitive area and continuing to acquire the image, and executing i=i+1 after the exposure is completed; if i≤L, outputting the next row of images, and so on until i>L, thereby obtaining a time-compressed image of the target scene.

This invention belongs to the field of optical components and relates to an aiming device and aiming method for an X-ray streak camera diagnostic system. The device includes a long-focusing microscope, a simulated target, a simulated cathode device, a support platform, a first adjustment stage, and a second adjustment stage. The aiming method includes: mounting a pinhole camera on the mounting flange of the simulated cathode device; adjusting the pinhole head of the pinhole camera to align the center of the long-focusing microscope's field of view, the pinhole head of the pinhole camera, and the center of the simulated cathode slit of the simulated cathode device; determining the target position coordinates in the image acquired by the CCD camera; detaching and installing the pinhole camera into the X-ray streak camera diagnostic system, and adjusting the target's position coordinates in the CCD field of view to the target position coordinates; achieving rapid aiming of the X-ray streak camera on a large laser device under vacuum offline conditions.

The invention relates to a high-sensitivity streak camera ultrafast scanning image enhancement and noise reduction method, and belongs to the technical field of ultrafast imaging and signal processing. The method mainly comprises the following steps of: performing spatial modulation on three-dimensional image data coded by a spatial coding element through a periodic grating; carrying out compression imaging on the modulated three-dimensional image data by the streak camera to form a two-dimensional observation image; an ADMM-TV algorithm is adopted to carry out image decoding, and a three-dimensional image containing a periodic modulation structure is recovered; after the three-dimensional image is reconstructed, effective fringe information in the modulated image is further extracted, high-frequency modulation residues are removed, and denoising of the interference fringe image is achieved. Physical separation of signals and noise is achieved through periodic grating modulation, high-frequency interference such as space charge noise can be restrained, the signal-to-noise ratio and contrast ratio of images are improved, and accuracy and stability of diagnosis of an ultrafast imaging system of a VISAR speed interferometer are improved.

The application belongs to the technical field of glass and specifically relates to a glass material with high corrosion resistance and stability, the cation composition of which is as follows in terms of mole percentage: 61-70% of Si 4+ , 3-12.5% of B 3+ , 1-5.5% of Al 3+ , 5-13% of K + , 5-13% of Na + , 0.2-3% of Ca 2+ , 0.1-2% of Li + , 0.1-1% of Mg 2+ , and 0.1-1% of Ti 4+ . The application is designed in a multi-component and multi-functional synergistic manner, so that the prepared glass meets the harsh requirements on thermal, optical, chemical and processing properties, is suitable for high-end optical devices such as micro-channel plates, and has a wide application prospect in the fields of photoelectric detection and imaging, mass spectrometers, high-energy physics, streak cameras, high-end medical imaging and the like.

The application discloses a kind of real-time multi-view three-dimensional imaging system and imaging method, solve the problem that the cost of obtaining different view three-dimensional information is too high, and system is not enough integrated.Specifically including the first beam splitter, second beam splitter, third beam splitter and fourth beam splitter of rectangular structure distribution, first encoding plate is arranged between second beam splitter and fourth beam splitter, second encoding plate is arranged between third beam splitter and fourth beam splitter, in addition still including light source, first imaging lens, second imaging lens, stripe camera and processing unit;The application adopts three beam splitters and a fourth beam splitter to make that stripe camera can obtain the 3D information of different view in single time, and the first encoding plate and second encoding plate of transmission type are used to encode the 3D information of different view respectively, simplify system structure, beneficial to system integration, while also simplify the energy loss of DMD encoding device, reduce signal detection cost.

This invention discloses a single-shot shock wave velocity measurement system and method with timing calibration capability. The single-shot shock wave velocity measurement system includes a target chamber, a probe laser generation module, a timing calibration target, an interferometer, a streak camera, a focusing lens, a timing laser introduction module, and multiple main laser generation modules. During the timing calibration of the single-shot shock wave velocity measurement system, a customized timing calibration target reflects the main laser signal and the probe laser signal along the same optical path. A focusing lens is used to improve the signal-to-noise ratio. Simultaneously, a dedicated timing laser transmission component introduces the timing laser signal into the slit of the streak camera. This allows for the simultaneous acquisition of the main laser signal, the probe laser signal, and the timing laser signal in a single-shot measurement, achieving in-situ precise timing calibration for a velocity measuring instrument corresponding to any reflective surface.

The present invention discloses a three-channel compression imaging system and an image reconstruction method. The three-channel compression imaging system includes a dual-channel recording component. By adding a diffraction optical element and a streak camera without a lens, the parameters of the diffraction optical element and the lens are set so that two light paths are imaged at different positions of the streak camera sensor, and the photosensitive areas of the pixel points are staggered relative to the image, thereby doubling the sampling rate. Then, an integral channel recording component is added, and the integral image is recorded using a CMOS camera. The combination of the dual-channel recording component and the integral channel recording component achieves a three-fold increase in the sampling rate, overcoming the problem of spatial information loss and insufficient dynamic range of the streak camera in traditional single-channel ultrafast compression imaging system technology. The image reconstruction method can reconstruct extremely high-quality two-dimensional images to avoid distortion in the depiction of shock wave characteristics and improve the accuracy of velocity field analysis.

The invention relates to a low time dispersion reflection type optical system and an ultrafast imaging streak camera, which are mainly used for solving the problems that an optical path difference about picosecond is introduced in a visible light spectrum range under the condition that a transmission type optical input lens is provided with a wide spectrum light source, so that the imaging quality and time resolution are influenced; and the technical problem that the streak camera in the existing synchrotron radiation light source device is difficult to measure the length of the electron beam bunch under the condition of low current intensity is solved. In the low-time-dispersion reflective optical system, a primary mirror, a third mirror and a secondary mirror form an off-axis three-mirror structure, a front mirror is arranged at the incident end of the off-axis three-mirror structure, a rear mirror is arranged at the emergent end of the off-axis three-mirror structure, and reflectors are adopted, so that time dispersion is effectively reduced; and only 2fs optical path difference is introduced for a light source in a visible light band spectral range, so that the optical lens has the characteristic of small time dispersion, and has remarkable advantages compared with the time dispersion of a traditional transmission-type optical lens in a visible light band picosecond order.

The present invention provides a method for continuously acquiring time-compressed images based on a line-scan image sensor, which is used to address the technical problem that ultrafast compressed imaging technology for a streak camera of a target scene is limited by the working principle of a streak tube, resulting in a time resolution of picoseconds to sub-nanoseconds and low spatial resolution. The method comprises: selecting a line-scan image sensor with a pixel resolution of M×N; fabricating a pseudo-random mask and covering it on the sensor's photosensitive area; selecting a time-compressed image resolution of M×L to be acquired; imaging the target scene on the sensor's photosensitive area; exposing the target scene and acquiring an image at the start time, with exposure ending at i=0; performing scan output, receiving and recording image data, and completing a line of image output; continuing to acquire an image after the photosensitive area is exposed, with exposure ending at i=i+1; if i≤L, outputting the next line of image until i>L, thereby obtaining a time-compressed image of the target scene.

The application discloses a kind of width quadratic gradient light cathode design methods applied to stripe transmission grating spectrometer, comprising the following steps: step S1: with the center of light cathode base as origin (0,0) establishes rectangular coordinate system, light cathode slit length direction is defined as x-axis direction, and light cathode slit width direction is defined as y-axis direction;Step S2: light cathode slit edge coordinates comply with quadratic function and, step S3: establish zero-level center x-axis coordinate of silk.This application has the beneficial effects that: by using width quadratic gradient light cathode design, the signal intensity distribution of X-ray streak camera light cathode can be controlled, the signal intensity difference between high-energy region and low-energy region in transmission grating dispersion spectrum is reduced, and the problem of high dynamic range requirement for X-ray streak camera is solved.

The application belongs to a kind of fringe camera readout system, aiming at the technical problems that the direction adjustment of current fringe camera readout system is difficult to quickly locate the area with the best imaging quality, and lacks the adjustment margin of other directions except axial adjustment, provides a four-degree-of-freedom coupled fringe camera readout system and use method, including image readout unit, axial movement base body, rotating base body and rotating ring, first connecting structure, second connecting structure and third connecting structure are adjustable connecting structure, the first connecting structure is used to adjust the position of image readout unit in X direction relative to first adjusting seat, the second connecting structure is used to adjust the position of first adjusting seat in Z direction relative to second adjusting seat, and the third connecting structure is used to adjust the position of axial movement base body in Y direction relative to rotating base body.The application can realize four-degree-of-freedom adjustment, greatly improve the test efficiency, reduce the test time and processing cost.

The application discloses a streak image converter tube specific wave band quantum efficiency improving method and a streak image converter tube, and belongs to the technical field of fusion diagnosis and high-energy physics ultrafast diagnosis. In view of the problem that the quantum efficiency of the existing S20 photocathode is low in the blue-green wave band and restricts the detection sensitivity of the streak camera, a medium-metal composite metasurface structure with a subwavelength periodic arrangement is prepared on a cathode incident window, the guided mode resonance effect is used to couple the incident light to a photoelectric emission layer efficiently, and the light absorption and photoelectric conversion efficiency in the target wave band are enhanced. The metasurface structure is composed of a hexagonal grid-shaped distribution circular hole array formed by etching in a silicon dioxide window and an aluminum oxide medium column filled in the hole, and the structure parameters are determined by strict electromagnetic simulation optimization. The quantum efficiency of the cathode adopting the metasurface structure is improved from 14.34% to 19.09% in the 480 nm wave band, the integral sensitivity is improved from 170 mu A / lm to 289 mu A / lm, and the sensitivity of the streak image converter tube in the specific diagnostic window is improved.

This invention discloses a microscopic transient angle-resolved reflection / transmission spectroscopy measurement system based on a streak camera, belonging to the field of microscopic angle-resolved spectroscopy measurement. The invention includes a reflection excitation optical path, a transmission excitation optical path, a collection optical path, and a microscopic illumination module. The reflection / transmission excitation optical path converts a pulsed laser source into a broadband pulsed white light source and focuses it onto the sample surface. The collection optical path achieves time resolution through a streak camera, angle resolution through a pinhole on the k-space plane, and wavelength or energy resolution through a grating. The microscopic illumination module illuminates the sample to determine its position. This invention can acquire transient angle-resolved spectra at different times, analyze the ultrafast dynamics of angle-resolved spectra, and simultaneously acquire information in three dimensions: time, angle, and wavelength. By analyzing the light signal from these three dimensions, it can comprehensively analyze the sample's response to the excitation light and thus determine the coupling state between light and matter in the sample.

The application discloses a kind of stripe camera system sensitivity under the measurement method and device of through radiation pulse, the calculation method of maximum ADUs value, solve the problem that stripe camera system sensitivity test precision is low in prior art, flexibility is poor and workload is big, specifically includes: step 1, build measurement system;Step 2, calculate conversion coefficient;Step 3, acquisition experimental image and dose monitoring value;Step 4, calculate sensitivity;The conversion coefficient calculation method of the present application is established from experimental radiation source pulse radiation dose to actual radiation source energy fluence, realizes the ability of using the measurement result under experimental radiation source to calculate stripe camera system sensitivity under actual radiation source radiation, fills the vacancy that stripe camera system sensitivity cannot be accurately measured under the current through radiation pulse, in the case where actual radiation source does not have stripe camera system calibration condition, ensure that stripe camera system is efficiently implemented scientific research exploration experiment.

The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses a kind of based on stripe camera's ultrafast compression holographic imaging system and method, it is related to holographic imaging technical field.The application discloses

The present invention provides an online auxiliary aiming device for an X-ray streak camera, comprising: a readout camera, an optical coupling lens, a lens connector, a tilt angle adjustment platform, a vacuum window flange, a reflector, and a scintillator assembly. The optical coupling lens is connected to the readout camera and the lens connector, respectively; the lens connector is mounted on the tilt angle adjustment platform; the tilt angle adjustment platform is mounted on the vacuum window flange, and the readout camera's field of view is adjusted by adjusting the angle; the vacuum window flange is used to isolate the atmosphere from the vacuum environment; the reflector is mounted in the vacuum environment within the vacuum window flange; and the scintillator assembly is positioned at a predetermined cathode slit of the streak camera. This invention provides a reference for adjustment, improves aiming accuracy, shortens aiming time, and enhances experimental efficiency.

This application relates to the field of image processing technology, specifically providing a method and related equipment for improving the detection sensitivity of a streak camera. The method includes: acquiring multiple frames of background and signal-containing images from the streak camera under the same imaging conditions; determining a standardized sequence for each pixel; for each pixel, extracting statistical features from the standardized sequence to construct a pixel-level statistical feature tensor; concatenating the pixel-level statistical feature tensor and noise conditional features to form a pixel-level joint feature vector; constructing a U-Net network incorporating residual learning; and enhancing and reconstructing the pixel-level joint feature vector based on the trained U-Net network to obtain the enhanced result. This application, after pixel-by-pixel statistical modeling and normalization of background noise, uses the pixel-level statistical feature tensor and pixel noise standard deviation as network conditional inputs, allowing the enhancement intensity to adaptively adjust with the noise level, achieving strong noise suppression and weak signal enhancement while preserving structural details.

Systems and methods are provided for ultrafast light field tomography (LIFT), a transient imaging strategy that offers a temporal sequence of over 1000 and enables highly efficient light field acquisition, allowing snapshot acquisition of the complete two, three or four-dimensional space and time. The apparatus transforms targets in object space into parallel lines in the image plane with a cylindrical lens. Beam projections are optionally directed through a Dove prism and an array of cylindrical lenslets to an imaging device such as a SPAD camera, streak camera and CCD camera. By using an array of cylindrical lenslets oriented at distinct angles, enough projections are obtained simultaneously to recover the image with a single snapshot. The time-resolved system and methods were adapted to LIDAR, hyperspectral, non-line-of-sight, and three-dimensional transient imaging.

This invention relates to the field of fluorescence lifetime imaging, and discloses a wide-field fluorescence lifetime imaging system and method based on a streak camera. The system includes an excitation source, a wide-field excitation module, a synchronous detection module, and a synchronous matching module. The wide-field excitation module is positioned along the transmission path of a pulsed laser. The synchronous detection module includes a collection and beam splitting component, a reference camera, and a streak camera component. The input end of the collection and beam splitting component receives the fluorescence beam emitted by the sample, and the output end of the component splits the fluorescence beam into a first detection optical path and a second detection optical path. The reference camera is positioned in the first detection optical path, and the streak camera component is positioned in the second detection optical path. The synchronous matching module is electrically connected to the excitation source, the reference camera, and the streak camera component, respectively. This invention avoids the complex optical encoding scheme and resulting fluorescence photon loss problems of traditional DMD systems, and eliminates the need for complex reconstruction algorithms, thus improving imaging efficiency.

The invention particularly relates to a system and a method for obtaining radiation pulse response, and solves the technical problems that the accuracy is low when the radiation pulse response is calculated, the experiment time for actually measuring the radiation pulse response of a streak camera system is long, and parameters are difficult to accurately obtain in the prior art. Compared with the prior art, the system for obtaining the radiation pulse response has the advantages that the relative uncertainty of the obtained radiation pulse response is less than 100%, the experiment time of actually measuring the radiation pulse response of the streak camera system is greatly reduced, and the experiment time can be reduced by about 50% at most. The method provided by the invention can be used for estimating the radiation pulse response of the streak camera system, and the test result can be compared with the response obtained on the pulse radiation source for mutual reference, so that the reliability of the test result is improved.

The present application relates to a kind of dynamic performance calibration system for the slow scanning gear of streak camera, mainly for solving the technical problems that the method of existing extension light path is more complex, usually needs to extend more than 60 meters, experimental platform occupies too large area, it is difficult to realize, and it will lead to high light intensity attenuation.The light pulse output by the laser enters the output imaging of streak camera in the dynamic performance calibration system for the slow scanning gear of streak camera, and the electric pulse signal output by the laser enters the digital delay under the slow scanning gear, the digital delay adjusts the electric pulse signal, so that the trigger signal after adjustment is kept in synchronization with the light pulse, and the image output by streak camera is read by camera and analyzed.The present application also provides a kind of dynamic performance calibration method for the slow scanning gear of streak camera.

The invention discloses a single-shot shock wave speed measurement system and method with time sequence calibration capability, and the system comprises a target chamber, a probe laser generation module, a time sequence calibration target, an interferometer, a streak camera, a focusing lens, a time mark laser introduction module, and a plurality of main laser generation modules. In the time sequence calibration process of the single-shot shock wave speed measurement system, a customized time sequence calibration target is used for reflecting a main laser signal and a probe laser signal in the same light path, a focusing lens is used for improving the signal-to-noise ratio, and meanwhile, a special time mark laser transmission assembly is used for introducing a time mark laser signal into a slit of a streak camera; therefore, a main laser signal, a probe laser signal and a time mark laser signal can be simultaneously obtained in single-shot measurement, and in-situ precise calibration of a time sequence of a speed measuring instrument corresponding to any reflecting surface is realized.

The invention discloses a high-time-resolution wide-energy-region X-ray spectrum quantitative measurement system and method. The high-time-resolution wide-energy-region X-ray spectrum quantitative measurement system and method have the beneficial effects that quantitative diagnosis of wide-energy-region (0.2 keV-5. 0keV) and high-time-resolution (lt, 40ps) X spectrum is realized by combining a height pair transmission type grating (TG), an X-ray streak camera (XSC) and a flat response radiation flow detector (FXRD), and the time resolution of the system is superior to that of an existing soft X-ray energy spectrometer (-200ps). Compared with an existing time-resolved transmission grating spectrometer, the system realizes quantitative measurement of the wide-energy-region X-ray spectrum intensity evolution process.

The invention discloses a streak camera image distortion test system and method under a dynamic condition, and solves the technical problems that sampling points of an existing image distortion test method are not rich enough, and the influence of streak camera image distortion cannot be accurately evaluated. The test system comprises a pulse signal source, a first pulse light source, a second pulse light source, a spatial modulation unit and an objective lens, the pulse signal source is used for enabling the to-be-detected streak camera to synchronously work with the first pulse light source or the second pulse light source; the first pulse light source emits laser pulses at equal time intervals to a slit of the streak camera to be measured; the second pulse light source emits a planar light pulse, the planar light pulse passes through the spatial modulation unit to generate a pattern of which the light intensity in the spatial direction is periodically changed, and the pattern is imaged to a slit of the streak camera to be measured after passing through the objective lens; the pulse signal source, the first pulse light source and the light beam modulator form a time direction distortion test system; the pulse signal source, the second pulse light source, the spatial modulation unit and the objective lens form a spatial direction distortion test system.