300 results about "Scintillation" patented technology

The invention relates to the technical field of nuclear radiation imaging, in particular to a radiation array detector, a back scattering imaging system and a back scattering imaging method. The radiation array detector comprises an X-ray photon absorption structure which comprises high-strip-shaped scintillators and low-strip-shaped scintillators which are alternately arranged, the high-strip-shaped scintillators are used for detecting back scattering X-ray photons incident at all angles, the low-strip-shaped scintillators are used for accurately determining the incident direction of the X-ray photons through the collimation effect, and the high-strip-shaped scintillators and the low-strip-shaped scintillators are used for detecting the incident direction of the back scattering X-ray photons; after X-rays enter the photon absorption structure, the high-strip-shaped scintillators and / or the low-strip-shaped scintillators receiving X-ray photons generate scintillation photons. The silicon photomultiplier array is connected with the high strip-shaped scintillator and the low strip-shaped scintillator through a light guide and is used for converting scintillation photons into photoelectric signals; and the position and energy information coding circuit is used for carrying out position and energy information coding on the photoelectric signals generated by the silicon photomultiplier array. According to the invention, the detection efficiency and the direction identification capability of the back scattering X-ray can be effectively improved.

The invention discloses a hybrid neutron gamma detector array and a signal processing method, and relates to the technical field of nuclear physical detection.During detection, eight EJ200 scintillators arranged in an array are used for energy deposition of gamma rays and fast neutrons and generating photons, and meanwhile three EJ426 thermal neutron scintillation screens are used for capturing thermal neutrons and generating photons; the response of gamma rays, fast neutrons and thermal neutrons is realized at the same time, and the detection precision is greatly improved. Meanwhile, if the three EJ426 thermal neutron scintillation screens are alternately stacked front and back, the total reflection of the EJ200 scintillators and the semi-light-proof performance of the EJ426 thermal neutron scintillation screens are utilized to block photon propagation in the X direction and only enable photons to be propagated in the Y direction and the Z direction, and each EJ200 scintillator corresponds to a four-channel photon collection structure to perform high-efficiency collection of the photons, so that the high-efficiency collection of the photons is realized. Therefore, high-precision detection and high-efficiency photon collection are realized, and support is provided for subsequent intense radiation field monitoring or high-precision positioning.

The invention belongs to the technical field of organic radiation luminescence and radiation imaging, and discloses an aggregation-induced delayed fluorescence (AIDF) type organic scintillator material and a preparation method thereof, and a preparation method and application of a flexible organic scintillation film. The molecular structure of the material comprises carbonyl, methylene, sulfuryl and other connecting units, phthalonitrile is used as an acceptor unit, carbazole is used as a donor unit, an aggregation-induced excitation state is formed through space charge transfer among molecules, efficient AIDF luminescence and large Stokes shift characteristics are realized, the self-absorption phenomenon is effectively avoided, and the luminescent efficiency is improved. The X-ray fluorescence probe is suitable for a luminescence process under an X-ray excitation condition, the sensitivity of X-ray detection is remarkably improved, and the lowest detection limit can reach 276nGy.s <-1 > and is far superior to the 5.5 mu Gy.s <-1 > standard required by medical diagnosis. Besides, the flexible scintillator film prepared based on the material system radiates and emits light within the waveband range of 450-750 nm and is perfectly matched with the response area of a silicon-based detector, X-ray imaging with the high signal-to-noise ratio is achieved, and the imaging resolution is as high as 20.01 lp.mm <-1 >.

The invention discloses an ionospheric scintillation monitoring method based on a geodetic measurement receiver, which belongs to the technical field of satellite navigation, and comprises the following steps of: accurately eliminating non-scintillation errors by constructing an inter-station single-difference function model and an inter-station single-difference random model, extracting carrier phase residual errors by using a single epoch ambiguity fixing technology, and finally obtaining an ionospheric scintillation monitoring result. Establishing a reliable ionospheric scintillation monitoring index; according to the ionospheric scintillation monitoring method based on the geodetic measurement type receiver, high-precision real-time monitoring of ionospheric scintillation can be realized through a single-epoch ambiguity fixing technology under the condition of not depending on an external precision product, and reliable technical support is provided for space weather monitoring.

The invention provides a pixelated flexible composite scintillation thin film based on a template-assisted nanoimprint technology and a preparation method and application of the pixelated flexible composite scintillation thin film. The preparation method of the pixelated flexible composite scintillation film comprises the following steps: preparing the flexible composite scintillation film; and constructing a periodic nanometer photon structure pattern on the flexible composite scintillation film by using a template-assisted nanoimprint technology to obtain the pixelated flexible composite scintillation film. According to the preparation method of the pixelated flexible composite scintillation film based on the template-assisted nanoimprint technology, the process is controllable, the preparation process flow is simplified, the production cost is reduced, the spatial resolution of the flexible composite scintillation film can be effectively improved, the imaging performance of the flexible scintillation film is greatly improved, and the application prospect is wide. Wide application prospects are realized in the fields of high-resolution X-ray imaging, radiation detection and wearable medical devices.

The invention discloses an ionospheric scintillation monitoring method based on a lightweight GNSS receiver, which belongs to the technical field of navigation, and comprises the following steps: extracting data through a lightweight GNSS receiver board card, carrying out detrending processing on signal intensity and carrier phase measurement values, calculating a scintillation index and adjusting parameters according to user requirements, and recording scintillation data according to a threshold value. Flicker types are distinguished through interference identification, and regional networking monitoring and visualization are realized through a cloud server; according to the ionospheric scintillation monitoring method based on the lightweight GNSS receiver, flexible monitoring, accurate identification, regional collaboration and data full-period service are realized, and the flexibility, accuracy and data value of ionospheric scintillation monitoring are effectively improved.

The invention provides a rare earth silicon germanate scintillating material and a preparation method and application thereof, in particular to a rare earth silicon germanate scintillating material with high thermal stability and strong radiation resistance and a preparation method and application thereof, the general formula of the rare earth silicon germanate scintillating material with high thermal stability and strong radiation resistance is RE2 (1-x-delta / 2) Ce2xGedeltaSi (1-y + delta) Gey-deltaOz, in the formula, 0 lt; x is more than or equal to 0.05, y is more than or equal to 0.15 and less than or equal to 0.5, delta is more than or equal to 0 and less than or equal to 10 <-4 >, z is more than or equal to 4.95 and less than or equal to 5.05, RE represents a rare earth element, and the rare earth element is selected from at least one of lanthanum (La), lutetium (Lu), yttrium (Y) and gadolinium (Gd). The rare earth silicon germanate scintillating material provided by the invention has the characteristics of strong radiation damage resistance, high scintillation light output, low afterglow and the like while greatly improving the thermal stability, and can be used in occasions with extremely high requirements on the thermal stability or radiation resistance of the material, such as high-energy physical experiments, nuclear medicine imaging, oil exploration wells and the like.

This disclosure provides a microcrystalline scintillation glass array and a scintillator detector, relating to the field of radiation detection technology. The microcrystalline scintillation glass array includes: at least one layer of microcrystalline scintillation glass array, each layer comprising multiple microcrystalline scintillation glasses, each microcrystalline scintillation glass comprising a glass substrate and multiple microcrystals coated on the glass substrate; wherein the fabrication process of the microcrystalline scintillation glass includes incorporating microcrystals into the glass, and the material used to form each microcrystal includes a scintillator. Since the scintillator in the microcrystalline scintillation glass array is only incorporated into the glass in the form of microcrystals, the amount of scintillator required to fabricate the microcrystalline scintillation glass array is small, resulting in low cost. Furthermore, in the microcrystalline scintillation glass, the glass coating of the microcrystals provides a sealed environment for the microcrystals, making them less prone to deliquescence, and the protective effect of the glass broadens the application environment of the microcrystalline scintillation glass.

Some embodiments pertain to generating, transmitting, and using ionospheric disturbance information applicable to at least a part of the Earth's surface. The ionospheric disturbance information is transmitted in the form of at least one message comprising reference point ionospheric disturbance levels, i.e. levels associated with a plurality of reference points on a reference ionospheric shell. On the receiver side, an estimator is operated, and, for each of at least one NSS signal observed by a NSS receiver, the reference point ionospheric disturbance levels are used to decide whether to adopt some ionospheric disturbance mitigation measures in the context of estimating parameters useful to determine a position. The ionospheric disturbance information may for example comprise ionospheric amplitude scintillation information, ionospheric phase scintillation information, and / or ionospheric gradient information. Systems, vehicles, and computer programs are also disclosed.

The invention discloses a multi-angle X-ray imaging system based on a detachable scintillation screen, and belongs to the technical field of X-ray imaging. The system comprises a base, a first / second rotating seat, a scintillation screen assembly, an objective table, a prism assembly, a protection module and a control module, wherein the scintillation screen assembly supports rapid switching between a flexible scintillation screen and a non-flexible scintillation screen and has a multidirectional position adjusting function, and the objective table lifting mechanism and an adjusting structure of the prism assembly jointly guarantee that the centers of the X-ray source, the sample to be tested, the scintillation screen and the prism are coaxially aligned. The protection module constructs a full-dimension radiation protection and state early warning system through a lead housing, a lead glass observation window, a radiation detection module and a tricolor lamp, operation safety is effectively guaranteed, and the control module comprises a master control system and an external touch screen and can achieve parameter presetting, intelligent regulation and control and detection data storage. The system can flexibly switch a static three-dimensional imaging mode and a dynamic rotary imaging mode, and can adapt to regular and special-shaped sample detection; and by replacing the scintillation screen, the performance of different scintillation screens can be conveniently detected. The system is convenient to operate and high in safety, and meets the multi-angle X-ray imaging requirements in the fields of industrial quality inspection and scientific research.

The invention relates to the field of global satellite navigation system ionosphere research, in particular to an ionosphere flicker prediction method based on a BOPSO-LSTM model and residual compensation, and the method comprises the steps: obtaining related ionosphere background environment parameters, and carrying out the preprocessing of the parameters into original data set feature values; taking an ionized layer amplitude flicker index S4 sequence as an original data set label, and uniformly sampling an S4 value and all input parameters at intervals to eliminate multi-source data time dislocation; dividing the original data set into a training set and a test set, and smoothing the S4 of the training set to suppress random high-frequency noise so as to obtain a new training set; then LSTM model parameters are optimized by using a Bayesian particle swarm optimization algorithm, and a BOPSO-LSTM ionized layer scintillation prediction model is constructed; and finally, for the possible problem of predicting medium-intensity flicker into weak flicker in the model, proposing to use a random forest model to predict an S4 residual error and cascade a BOPSO-LSTM model, and performing residual error compensation on a prediction result so as to reduce the deviation of a flicker prediction result and improve the flicker prediction precision.

The invention discloses a scintillation pulse peak voltage sampling method and device and a computer storage medium, and the method comprises the steps: carrying out the peak holding processing of a scintillation pulse, and obtaining a peak holding signal, the size of the peak holding signal and the peak value of the scintillation pulse meeting a first pre-calibrated mapping relation; generating a reference signal, wherein the reference signal conforms to the prior model; comparing the reference signal with the peak holding signal to obtain time difference information when the reference signal crosses the peak holding signal, the time difference information and the peak holding signal conforming to a second pre-calibrated mapping relation, and the second pre-calibrated mapping relation being associated with the prior model; and according to the time difference information, the first pre-calibrated mapping relation and the second pre-calibrated mapping relation, reversely obtaining the peak voltage of the scintillation pulse. On one hand, the problems existing in existing PP-MVT can be solved, on the other hand, the method can be highly compatible with an existing framework of an MVT method, and sampling and restoring of flash pulse key information are completed.

X-ray scintillators based on amorphous organic metal halide hybrid films are demonstrated, which can be prepared via a facile solution processing with a non-crystalline organic halide salt reacting with metal halide at low temperature. The solution processed scintillators exhibit excellent scintillation properties, thermal stability, mechanical resilience, and processability.

The invention relates to a neutron measuring device (1). The device (1) comprises a housing (90), a high-density polyethylene block (10) in the housing (90), a shell made of neutron-absorbing material (20) integrated into the block (10), a first scintillation neutron detector (30) located inside the shell (20) and capable of emitting a signal proportional to the number of neutrons detected per unit of time, and a module (40) capable of converting the signal into a neutron count rate.

Described are embodiments of a multi-layer giga-pixel plenoptic camera that enable three-dimensional (3D) light-field imaging, high resolution and large field-of-view. In embodiments, the camera includes a radiation conversion array layer, an optics array layer, a complementary metal-oxide-semiconductor (CMOS) image sensor array layer, and a memory layer. Depending on the embodiment, the sequence of the radiation conversion array layer and the optics array layer may be reversed, and / or additional isolation layers may be provided between some of the layers. Applications can span the visible light spectrum, and can include ultraviolet (UV) and infrared (IR) spectra. In an embodiment, applications can span x-ray spectra and gamma ray spectra. Radiation converters in the radiation conversion array layer can be filters or scintillation converters. Optics in the optics array layer can be lenses or pinholes and / or coded apertures.

The invention discloses a highly-oriented quasi-two-dimensional perovskite multi-wafer scintillator for X-ray detection imaging and a preparation method of the highly-oriented quasi-two-dimensional perovskite multi-wafer scintillator, and relates to the technical field of radiation detection and scintillation materials, the highly-oriented quasi-two-dimensional perovskite multi-wafer scintillator comprises phenethyl ammonium bromide, cesium lead tribromide and ammonium thiocyanate, the molar ratio of the phenethyl ammonium bromide to the cesium lead tribromide to the ammonium thiocyanate is 2: 4: 2, the scintillator contains a methylamine thiocyanate additive which accounts for 0-1 equivalent weight of the dosage of the ammonium thiocyanate, and the scintillator is of a flaky polycrystal structure; the perovskite crystal of the polycrystalline wafer has a quasi-two-dimensional layered crystal structure, and each crystal grain is arranged in a height orientation manner, so that the layered crystal face is parallel to the main plane of the scintillator sheet. According to the highly-oriented quasi-two-dimensional perovskite multi-wafer scintillator for X-ray detection imaging and the preparation method of the highly-oriented quasi-two-dimensional perovskite multi-wafer scintillator, a highly-oriented layered structure is formed in the crystal, diffuse scattering of emergent light is greatly reduced, brightness uniformity and spatial resolution of X-ray imaging are improved, and a finer imaging effect is achieved.

Methods and systems are disclosed that enhance the yield and speed of emission and control the spectral and angular emission of light emitted by materials under irradiation by high-energy particles through a process known as scintillation. In each case, a photonic structure (of nano- or micron-scale feature sizes) is integrated with a scintillating material, and the photonic structure enhances the yield or controls the spectrum of the material. Various embodiments of this technology and practical demonstrations are disclosed.

The invention relates to a shimmering powder film and a manufacturing method thereof and an acrylic product, the shimmering powder film comprises a micro-optical functional layer, a reflecting layer, a protective layer, an adhesive layer and a release film, the micro-optical functional layer comprises a base material layer and a microstructure layer connected with the base material layer, and the microstructure layer is formed by imprinting a plurality of micro-lenses on UV light-cured resin; the reflecting layer comprises a resin carrier layer and a plurality of shimmering powder particles, the resin carrier layer is connected with the side, away from the base material layer, of the microstructure layer, and the shimmering powder particles are directionally arranged on the resin carrier layer; the protective layer is connected with one side, away from the microstructure layer, of the substrate layer; one side of the adhesive layer is connected with one side, far away from the substrate layer, of the reflecting layer, and the other side is connected with the release film; according to the shimmering powder film, ambient light is converged to the surfaces of the shimmering powder particles through the micro lenses, reflected light passes through the micro lenses twice from the surfaces of the shimmering powder particles to be amplified and scattered, strong flash beam-shaped scattering is formed, the brightness is remarkably improved, the relatively strong flickering feeling is achieved, and the visual attraction is improved; the manufacturing method of the shimmering powder film is simple and easy to control.

The invention belongs to the technical field of luminescent materials, and discloses a heavily-doped Eu (II) hybrid metal iodide scintillator and a preparation method and application thereof. The chemical composition formula of the hybrid metal iodide is OrSr (1-v) Eu (II) vI. According to the invention, a glass tube is sintered at a low temperature by using a flame spray gun under the vacuum degree of 10 <-3 >-10 <-5 > Pa through a vacuum sintering process, wherein the raw materials which are ground and mixed uniformly are ground and mixed uniformly. The heavily doped Eu (II) hybrid metal iodide is obtained, the material shows the characteristics of high luminous intensity, good scintillation performance, good concentration quenching characteristic, wide excitation range and the like, and a ceramic wafer prepared through cold pressing sintering can be used in the field of X-ray imaging.

The invention discloses a satellite positioning error optimization method, system and device and a medium, and belongs to the technical field of satellite positioning error optimization, and the method comprises the steps: collecting multi-dimensional input information used for representing the disturbance characteristics of a space channel, and generating an initial ionospheric scintillation signal; calculating an amplitude flicker index; comparing the amplitude flicker index with a target index in the multi-dimensional input information to obtain deviation information; dynamically adjusting model adjustment parameters of the ionospheric scintillation generation model through the adaptive adjustment unit; and performing measurement data correction processing, and outputting an optimized positioning result to reduce the influence of ionospheric flicker on the positioning performance. According to the invention, under different flicker intensities, different data updating periods and dynamic ionosphere environments, the spatial channel disturbance characteristics can be accurately represented, and ionosphere flicker signals conforming to actual characteristics can be generated.

The invention relates to a high-energy radiation detection device which comprises a scintillator layer, a light color conversion layer and a light detection module, and the light color conversion layer is located between the scintillator layer and the light detection module. The scintillator layer is used for receiving high-energy radiation and generating scintillation light. The color conversion layer is used for receiving the scintillation light and generating conversion light, and the wavelength of the conversion light is larger than that of the scintillation light. The light detection module is used for receiving the conversion light and converting the conversion light into an electric signal. According to the high-energy radiation detection device disclosed by the invention, high-energy radiation is converted into conversion light with relatively long wavelength in a two-stage manner, so that the conversion efficiency of the light detection module is improved.

The invention discloses a muon imaging detection system and method based on scintillation fiber and SiPM reading. Comprising at least one detection unit, the detection unit comprises a scintillation optical fiber array and SiPM array support plates, the scintillation optical fiber array is formed by arranging a plurality of scintillation optical fibers in parallel, the two ends of the scintillation optical fiber array are each provided with one SiPM array support plate, SiPM arrays are integrated on the SiPM array support plates, the number of the SiPM units is the same as that of the scintillation optical fibers, and the SiPM units and the scintillation optical fibers are in one-to-one correspondence; the SiPM unit is optically coupled with one end of a corresponding scintillation optical fiber signal, receives a scintillation optical signal transmitted in the corresponding scintillation optical fiber and generates an electric signal; the signal processing unit is used for preprocessing the electric signal output by the SiPM to obtain a processed signal; and the positioning reconstruction unit is used for reconstructing the space motion trail of the muon according to the processed signal. The system can realize three-dimensional high-precision positioning and track reconstruction of muons, and has the advantages of high integration level, modular design and the like.

The utility model provides an X-ray detector and an imaging system. According to the X-ray detector, the positioning columns are matched with the positioning holes of the positioning sleeves fixed to the circuit board assembly, so that the flicker module and the photoelectric conversion module of the circuit board assembly are positioned and aligned more accurately. Moreover, the structure of the existing circuit board assembly does not need to be greatly changed, and the functions can be realized only by using the additionally arranged positioning sleeve with smaller processing error, so that the cost for developing a new circuit board assembly is saved. In the imaging system, more accurate positioning and alignment are realized by the flicker module and the photoelectric conversion module of the circuit board assembly, so that the signal-to-noise ratio of the X-ray detector for imaging can be improved, the risk of image artifacts is reduced, and better imaging quality is obtained.

The invention belongs to the technical field of crystal growth, and particularly relates to a Cs3Cu2I5 single crystal growth method. The method specifically comprises the following steps: taking cesium iodide and cuprous iodide as precursors, carrying out stirring reaction on the precursors and lewis acid in a polar aprotic solvent, hydrolyzing the lewis acid to generate an acid environment, inhibiting Cu < + > oxidation, and meanwhile, forming uniformly dispersed colloidal particles to obtain a precursor solution; and adding an anti-solvent into the precursor solution to enable the precursor solution to reach a supersaturated state, filtering, and carrying out single crystal growth by adopting an inverse temperature crystallization method. Lewis acid is added into the precursor solution, oxidation of Cu < + > is inhibited by utilizing a weak acid environment generated by hydrolysis of the Lewis acid, and the colloid stability of the precursor is improved, so that growth of the high-quality large-size Cs3Cu2I5 single crystal is promoted. The method is simple and convenient to operate and easy to control, can effectively improve the scintillation luminescence performance of the single crystal, and has a wide application prospect.

The invention relates to the technical field of preparation of lead-free metal halide scintillator crystal powder, and particularly discloses chlorine zirconium cesium crystal powder for a composite scintillator and a confinement growth method of the chlorine zirconium cesium crystal powder. The cesium zirconium chloride crystal powder is cesium zirconium chloride-gas phase oxide composite powder formed on the micro-nano scale by means of in-situ crystallization, and the cesium zirconium chloride crystal powder is composed of 50-95.3 wt% of cesium zirconium chloride and 4.7-50 wt% of gas phase oxide. The preparation method comprises the following steps: preparing zirconium chloride-gas phase oxide powder, preparing a cesium chloride solution, mixing zirconium chloride-gas phase oxide slurry, and growing chlorine zirconium cesium crystal powder in an in-situ crystallization confinement range. The cesium zirconium chloride crystal powder prepared by the method has the advantages of adjustable particle size, stable suspension and efficient scintillation luminescence performance, solves the problem of crystal powder-polymer phase separation in a composite scintillator, and can be used for large-scale preparation of the composite scintillator in the field of radiation detection.

A plastic scintillation optical fiber capable of detecting a neutron beam and excellent in productivity. A plastic scintillation optical fiber of one embodiment of the present invention includes: an outermost peripheral layer (1) containing a plastic material containing an organic compound containing an element having a larger neutron reaction cross section than hydrogen and emitting scintillation light by irradiation of a neutron beam; a high-refractive-index core (2) provided inside the outermost peripheral layer (1) and containing at least one phosphor that absorbs scintillation light and wavelength-converts to a long wavelength; and a cladding layer (3) that covers the outer peripheral surface of the core (2) and has a lower refractive index than the core (2). A wavelength conversion optical fiber containing the core (2) and the cladding layer (3) is integrated with the outermost peripheral layer (1) that covers the outer peripheral surface of the wavelength conversion optical fiber.

The invention relates to an optical imaging device with soft X-ray radiation imaging capability and a preparation method thereof. The optical imaging device comprises an optical lens, a scintillation film layer and an imaging sensor, wherein the scintillation film layer is plated on the outer side of the incident surface of the optical lens and is used for converting incident soft X-rays into visible light in situ; the scintillation thin film layer comprises a doped yttrium aluminum garnet material; the optical lens is used for amplifying or reducing the visible light converted by the scintillation thin film layer for imaging; and the imaging sensor is used for receiving the visible light imaged by the optical lens so as to obtain a spatial distribution image of the soft X-ray. The invention has the beneficial effects that the scintillation film is directly plated at the foremost end of the lens, so that soft X-ray in-situ conversion is realized, optical signal spatial diffusion caused by an independent scintillation screen is thoroughly avoided, the imaging resolution is remarkably improved, the optical path is shortened, and the signal loss is reduced.

The present disclosure provides a neutron detector and a neutron detection method. The neutron detector comprises an absorption layer and a photoelectric detection device, wherein: the absorption layer comprises at least one gamma sensitive layer and at least one neutron sensitive layer, the neutron sensitive layer is embedded in the first side of the gamma sensitive layer, wherein: the to-be-detected neutron and the gamma background of the to-be-detected neutron are incident from the second side of the gamma sensitive layer, the first side is opposite to the second side, the gamma background deposits energy in the gamma sensitive layer to generate first scintillation light, and the to-be-detected neutron deposits energy in the neutron sensitive layer to generate second scintillation light; the photoelectric detection device is arranged on the first side of the gamma sensitive layer embedded with the neutron sensitive layer, and is used for detecting the first scintillation light and the second scintillation light, so as to realize the detection and discrimination of the to-be-detected neutron and the gamma background. The method realizes the improvement of the discrimination effect of neutron events and gamma events.

The invention belongs to the field of X-ray long-afterglow luminescent materials. The technical problems that traditional Pr < 3 + > doped fluoride is insufficient in afterglow performance, X-ray imaging depends on continuous irradiation, and color scattering noisy points exist are solved. The NaLuF4: Mg / Cs / Pr fluoride material is prepared by adopting a Cs < + >-Mg < 2 + > co-doping regulation strategy, the material is synthesized by an oleic acid-octadecene liquid phase method, and the X-ray excitation afterglow intensity of Pr < 3 + > is improved by about 110 times by utilizing the synergistic effect that Cs < + > enhances X-ray absorption and Mg < 2 + > optimizes a carrier shallow-deep trap level; the material is prepared into the high-light-transmittance rare earth nano flexible scintillation screen with the resolution ratio of 20.01 lp / mm. According to the invention, zero-noisy-point time-delay imaging after low-dose X-ray transient irradiation is realized, continuous irradiation is not needed, the radiation dose is lower, and the method is mainly applied to the field of X-ray time-delay imaging of low-dose medical diagnosis and industrial nondestructive testing. The method does not need continuous X-ray irradiation, and has important application value in the fields of medical diagnosis, industrial nondestructive testing and the like.

The invention relates to a detector array and a detection device for marking neutron beam imaging, a plurality of detector units in the array are arranged at intervals, a vacancy unit is arranged between every two adjacent detector units, each detector unit is a multi-pixel neutron detector with a scintillator array, and the scintillator array is arranged between the detector units. The scintillator array can realize n / gamma discrimination. Crosstalk of neutron signals among the scintillation units can be reduced, interference of background gamma signals can be effectively eliminated, the light collection capacity and the resolution capacity of edge points of the scintillator array can be improved through the special light guide structure design, and height adjustment and angle adjustment of the detector array can be achieved through the detector support.