1050 results about "Scintillator" patented technology

The invention relates to the technical field of scintillator materials and X-ray detection, in particular to a rare earth organic-inorganic hybrid complex scintillator and a preparation method and application thereof. The general formula of the rare earth organic-inorganic hybrid complex scintillator is [RE (L) 4] <->. [A] < + >, wherein RE is selected from Eu, Tb, Sm or Dy; l is a beta-diketone ligand; [A] < + > is selected from long-chain hydrophobic quaternary ammonium salt cations or heterocyclic quaternary ammonium cations which have the carbon atom number of C8-C20 and do not contain active functional groups. The rare earth organic-inorganic hybrid complex scintillator provided by the invention has good solubility and molecular-level dispersion capability. The scintillator film based on the rare earth organic-inorganic hybrid complex prepared by using the rare earth organic-inorganic hybrid complex has the characteristic of compatibility of high scintillator load and high light transmission, overcomes the problems of low scintillator load rate, poor transparency and limited imaging resolution of the traditional scintillator film, and has excellent practical value and popularization prospect.

The invention discloses a fast neutron imaging detector and a detection system, and belongs to the technical field of ray detection, the fast neutron imaging detector comprises a wave-shifting optical fiber array, scintillators and a photoelectric conversion array, the wave-shifting optical fiber array comprises a plurality of crisscrossed wave-shifting optical fibers, and gaps among the wave-shifting optical fibers are filled with the scintillators; and each photoelectric detector in the photoelectric conversion array is correspondingly coupled with the wave-shifting optical fiber. The detection efficiency of fast neutrons is effectively improved by increasing the thickness of the sensitive area of the detector, meanwhile, the collection efficiency of photons generated in the sensitive area of the detector can be remarkably improved through the crisscrossed wave-shifting optical fiber array, and the position information of a detection event can be accurately obtained in combination with a gravity center positioning method. Compared with a traditional fast neutron imaging detector based on combination of a camera and a conversion screen, the imaging detector has the advantages of fast response, large sensitive area, high detection efficiency and the like.

The invention provides a muon detector for measuring soil moisture, and belongs to the technical field of testing by utilizing wave or particle radiation. The muon detector comprises a tubular scintillator which is used for detecting muons in cosmic rays and emitting scintillation light, and at least two outer optical fibers which are equal in screw pitch and used for collecting and transmitting the scintillation light are spirally wound on the periphery of the tubular scintillator. At least two inner optical fibers which are equal in screw pitch and used for collecting and transmitting scintillation light are spirally arranged on the inner circumference of the tubular scintillator, and the rotation direction of each inner optical fiber is opposite to that of each outer optical fiber, so that the tubular scintillator is divided into a plurality of latticed detection units in the internal and external directions. Compared with the prior art, the latticed detection unit is smaller, the existing scintillation light signal can only be acquired by the outer optical fiber, the scintillation light signal can also be acquired by the inner optical fiber, the optical fiber closer to the optical fiber can be acquired by the optical fiber, and the inner optical fiber and the outer optical fiber form an acquisition network, so that the detection precision is higher.

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.

Provided are a detection substrate, a manufacturing method therefor and a flat panel detector. The detection substrate includes: a flexible substrate; a scintillator layer on a side of the flexible substrate, where the scintillator layer includes a central portion and a peripheral portion on at least one side of the central portion, the central portion and the peripheral portion are of an integrated structure, a thickness of the central portion at each position is approximately equal, and in a direction from an edge of the flexible substrate to a center of the flexible substrate, a thickness of the peripheral portion progressively increases; and a reinforcement structure, the reinforcement structure and the scintillator layer being on the same side of the flexible substrate, and the reinforcement structure at least covering part of the peripheral portion.

Interstitial brachytherapy is a cancer treatment in which radioactive material is placed directly in the target tissue of the affected site using an afterloader. The accuracy of this placement is monitored in real time using a urinary catheter that locates the radioactive material according to the radiation levels measured by sensors in the walls of the urinary catheter. A scintillator that is embedded in the walls of the urinary catheter produces light when irradiated by the radioactive material. This light is proportional to the level of radiation at each location. The light produced by each scintillator is carried through optical fibers and then converted to an electrical signal that is proportional to the light and the radiation level at each location. The radioactive material is located according to the plurality of electrical signals. This location can be used as quality control feedback to the afterloader.

The invention discloses a fast neutron energy spectrum unfolding method based on an artificial neural network, which is used for reversely solving a neutron energy spectrum of a neutron field according to a neutron recoil proton spectrum recorded by a liquid scintillator detector. The neural network model is developed based on a generative adversarial neural network and comprises a generator and a discriminator. According to the neural network, Geant4 is used for simulating neutron energy response of an EJ301 liquid scintillator detector, and a data set containing 20000 samples is constructed for training of the neural network. The provided neural network spectrum unfolding algorithm is verified by using neutron energy spectrums of 252Cf and 241Am-Be radioactive sources. The neural network model can generate accurate neutron energy spectrum data under 6 keV energy resolution, and the Qs quality factor evaluation proves that the generated neutron energy spectrum is basically consistent with the target energy spectrum.

Several new techniques for designing nanophotonic scintillators which lead to optimal performance and novel functionalities. Important design concepts include the use of absorbing structures inspired by solar cells, angularly-selective structures, and metasurfaces. Scintillators based on conventionally overlooked materials (such as GaAs or GaN) are also disclosed, which are designed to reach efficiencies comparable or superior to state-of-the-art conventional scintillators (such as YAG:Ce and LYSO). Such scintillators provide important enhancement of scintillation yield arising from incorporation of nanophotonic patterns. Additionally, nanophotonic scintillators designed in conjunction with image post processing algorithms (such as deconvolution algorithms, tomographic reconstruction, etc.) are disclosed. These scintillators are designed in order to increase robustness, minimize the required dose / scan time or even the number of scans required in scintillation imaging. These new designs optimize the scintillator for optimal reconstruction.

The invention discloses an isocenter calibration quality control system and method for a radiotherapy image guidance system, and relates to the technical field of medical image processing, and the method comprises the steps: S1, enabling radiotherapy rays to be imaged on a scintillator through an optical body surface imaging mode, and obtaining the radiation isocenter of a linear accelerator according to the imaging information of the scintillator; s2, calculating a 3D point cloud of the ball array by using an image processing module to obtain a 3D coordinate of the center position of the ball array; and S3, aligning the 3D coordinate of the center position of the ball array with the radiation isocenter of the linear accelerator to realize calibration of a point cloud coordinate system so as to accurately position the patient in a positioning and treatment stage. According to the invention, the isocenter position of the accelerator can be accurately positioned, the isocenter point of the accelerator is mapped to the point cloud three-dimensional space coordinate for coordinate alignment, accurate positioning and calibration of the system are realized, and the system can also be used for positioning verification before radiotherapy.

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 relates to the technical field of material sorting, in particular to material sorting equipment and a material sorting method. The material sorting equipment comprises a conveying device used for conveying materials; the camera is located above the conveying device and used for collecting color sorting images of the materials; the ray device is arranged on the downstream of the conveying device and used for emitting rays to the materials falling from the tail end of the conveying device; the scintillator detector is arranged on the opposite side of the ray device and is used for determining a grayscale image of the material; the silicon drift detector is arranged below the ray device and is used for determining a fluorescence spectrum image of the material; and the sorting device is positioned below the silicon drift detector and is used for sorting the materials. The sorting accuracy and the sorting precision of the material sorting equipment can be effectively improved through the material sorting equipment. The time in the recognition and sorting process of the material sorting equipment can be effectively shortened, the sorting efficiency of the material sorting equipment is improved, and accurate judgment and efficient sorting are achieved.

A ray detector substrate includes: photodetectors including first photodetectors and second photodetectors; and dimming portions including, at a side of each first photodetector away from a substrate, a respective first dimming portion, and, at a side of each second photodetector away from the substrate, a respective second dimming portion. A second scintillator layer is configured to convert part of rays into a first radiation fluorescence. A first scintillator layer is configured to convert another part of the rays into a second radiation fluorescence. The first dimming portion is configured to reflect the second radiation fluorescence, and to enable the first radiation fluorescence to pass through the first dimming portion to be detected by the first photodetector. The second dimming portion is configured to reflect the first radiation fluorescence, and to enable the second radiation fluorescence to pass through the second dimming portion to be detected by the second photodetector.

The embodiment of the invention provides a space instant gamma radiation detection device and monitoring method, and relates to the technical field of gamma radiation monitoring, the device comprises a device body and a signal acquisition and processing system; the device body comprises a shell, and a scintillator array assembly and an anti-coincidence scintillator assembly which are fixed in the shell; the center of the anticoincidence scintillator assembly is provided with a cuboid groove, and the scintillator array assembly is located in the cuboid groove. Wherein the scintillator array assembly and the anticoincidence scintillator assembly are both connected with the signal acquisition and processing system. According to the technical scheme, the problem of instant gamma radiation time spectrum measurement in a space complex radiation background environment is solved, the signal-to-noise ratio and the time performance of gamma radiation time spectrum measurement are improved on the basis of ensuring lightweight design, and the accumulation probability is reduced while the sensitivity upper limit is expanded.

The invention relates to the technical field of electron energy measurement, and discloses an electron spectrometer and an electron energy spectrum measurement method and system.The electron spectrometer comprises a magnetic deflection unit used for receiving an incident to-be-measured electron beam, generating a magnetic field and applying the magnetic field to all to-be-measured electrons in the to-be-measured electron beam; the scintillator fluorescent screen is arranged at the downstream of the magnetic deflection unit and used for receiving the deflected electrons to be detected, and the electrons bombard the scintillator fluorescent screen and generate light spots; the optical acquisition unit is used for acquiring a light spot image on the scintillator fluorescent screen; and the signal processing unit is used for processing the light spot image so as to identify the spatial position information of the light spot in the light spot image and convert the spatial position information into electronic energy data. The method has the beneficial effects that the unification of high resolution and high measurement efficiency is realized, and the problem of signal accumulation under a high counting rate of a traditional direct measurement method and the inherent defect of low efficiency of a scanning type magnetic spectrometer are overcome.

The invention relates to a low-shadow wide-angle-loss fast ion detector for a magnetic confinement fusion device, which comprises a double-collimator system and a light path connecting tube, the double-collimator system comprises a collimator front part, a collimator rear part and a scintillator sheet, the collimator front part is provided with a forward collimation front hole and a reverse collimation front hole, and the collimator rear part is provided with a reverse collimation front hole; a forward collimation rear hole and a reverse collimation rear hole are formed in the collimator rear portion, the scintillator sheets are arranged on the side faces of the forward collimator and the reverse collimator, and the length of the forward collimation rear hole and the length of the reverse collimation rear hole and the distance between the forward collimator and the reverse collimator in the y-axis direction are calculated and determined through a detector simulation program. Overlapping of detection areas can be avoided; one end of the light path connecting pipe is fixedly arranged on the double-collimation system, and the other end of the light path connecting pipe is provided with external threads and used for being in threaded connection with a rear-end light path pipeline. According to the method, the track shadow can be reduced under the condition that the wide throwing angle detection range is ensured.

The invention relates to a bidirectional magnetic field loss fast ion detector for a magnetic confinement fusion device, which comprises a clockwise collimator, an anticlockwise collimator, a scintillator sheet, a detector main body, a graphite shell and a light path connecting sheet, and is characterized in that the clockwise collimator and the anticlockwise collimator are symmetrically arranged at two sides of the detector main body, the scintillator sheet is arranged in the detector main body, and the graphite shell is arranged in the detector main body. The graphite shell is arranged outside the detector body in a sleeving mode, the clockwise collimator and the anticlockwise collimator each comprise a collimator front portion and a collimator rear portion, a fixing groove is formed in the collimator rear portion, a collimator rear hole is formed in the fixing groove in a penetrating mode, the collimator front portion is detachably installed in the fixing groove, and the collimator rear hole is detachably installed in the fixing groove. A cavity communicated with the fixing groove is formed in the collimator front portion, a collimator front hole is formed in the cavity in a penetrating mode, one end of the light path connecting piece is connected with the detector body, and the other end of the light path connecting piece is connected with the rear-end light path pipeline. The device can adapt to a bidirectional annular magnetic field, the upgrading cost is reduced through the modular design, and stable installation can be provided for the scintillator.

The invention relates to a rare earth ion doped enhanced ionizing radiation luminescence low-dimensional halide scintillator and a preparation method and application thereof, and belongs to the technical field of scintillating materials. Aiming at the problems that the radiuses of RE ions and low-dimensional halide A5B3 (ClxBryI1-x-y) 8 materials are poor in lattice adaptation degree, the melting points of the RE ions and the low-dimensional halide A5B3 (ClxBryI1-x-y) 8 materials are difficult to consider in the doping process, concentration segregation is easy to occur and large-size crystals are difficult to grow, the solid-solution ratio of halogen anions and the doping concentration of the rare earth ions are regulated and controlled, namely 0.25 < = x < = 0.875, 0 < = y < = 1, x + y < = 1 and 0 < m < 10 are controlled; meanwhile, a rotation descent method is adopted for crystal growth, the scintillator single crystal material A5B3 (ClxBryI1-x-y) 8: m at% RE with the advantages of high ionizing radiation luminous efficiency, high light output and the like is finally obtained, and the material can be applied to the fields of X-ray imaging, gamma-ray detection, particle detection and the like.

The invention relates to the technical field of high-energy physics and particle detection, and discloses a cosmic ray muon detector based on non-optical coupling, the cosmic ray muon detector comprises a plurality of detection layers, each detection layer comprises a plurality of columns of detection units arranged in parallel, each column of detection units is formed by aligning and arranging a plurality of scintillator strips end to end in a mechanical mode, and optical coupling does not exist between the adjacent scintillator strips; each detection unit is provided with a wavelength shift optical fiber group, and the wavelength shift optical fiber groups are fixed through mechanical clamping grooves formed in the side faces of the scintillator strips and are continuously laid along the whole column of detection units; the light emitting end of the wavelength shift optical fiber group is coupled to the photoelectric conversion module. According to the invention, mechanical splicing without optical coupling is adopted to construct a long detection column, so that the detector can be quickly assembled and deployed on site by using a standard assembly which is low in cost and easy to transport, and high cost, high risk and complex process of precise optical coupling of a long-strip-shaped scintillator are thoroughly avoided.

The invention discloses a low-dimensional organic-alkali metal-copper (I) halide supramolecular scintillator based on crown ether assisted self-assembly, a synthesis method thereof and application of the low-dimensional organic-alkali metal-copper (I) halide supramolecular scintillator in single crystal X-ray imaging. A series of supramolecular scintillators are successfully synthesized by adopting a supramolecular coordination strategy of crown ether (L) and alkali metal ions (M) and a saturated solution volatilization method. By optimizing the crown ether coordination mode, controllable preparation of large-size single crystals is achieved, the optical and X-ray imaging performance of the large-size single crystals is improved, a new thought is provided for research and development of novel high-performance X-ray scintillators, and the application potential of the supramolecular scintillators in the field of high-resolution single crystal X-ray imaging is expanded.

An X-ray device includes an X-ray source, a scintillator, a single mirror, and a camera. The camera has a field-of-view around an optical axis of the camera. The single mirror fully contains the field-of-view as the field-of-view is folded by the single mirror toward the scintillator. The single mirror is positioned at an angle with respect to a plane that is normal to the optical axis at a point where the optical axis intersects the single mirror. The angle is decreased from forty-five degrees to reduce a volume of the folded field-of-view of the camera. The angle is greater than or equal to a threshold angle that prevents triple specular reflections of light between the single mirror and the scintillator.

The invention discloses a muon monitoring device and a tunnel monitoring method thereof.The muon monitoring device comprises multiple layers of muon detection modules which are arranged in a laminated mode in the height direction, and each layer of muon detection module comprises a shell, a scintillator array, an optical reflection shielding layer, a front-end signal processing plate and a signal leading-out plate, and the scintillator array, the optical reflection shielding layer, the front-end signal processing plate and the signal leading-out plate are arranged in the shell; the scintillator array is arranged between the optical reflection shielding layer and the front-end signal processing board, and the front-end signal processing board of the muon detection module on the upper layer and the optical reflection shielding layer of the muon detection module on the lower layer of two adjacent layers are arranged oppositely, the scintillator array comprises a plurality of scintillator units arranged in a two-dimensional matrix mode, a photomultiplier is arranged at the bottom of each scintillator unit, the photomultipliers are fixedly installed on the front-end signal processing board, and the front-end signal processing board is in signal connection with the signal leading-out board arranged at the edge of the scintillator array.

The invention discloses an organic rare earth luminescent complex scintillator as well as preparation and application thereof. The molecular structural formula of the complex is L13ML2, M is Tb, Eu or Er metal ions, and the valence state is + 3; l1 is a tetraphenyl diphosphine imide anion ligand (tpip) or a substituted tpip ligand; l2 is unsubstituted or substituted 2, 2 '-bipyridyl, 1, 10-phenanthroline and a non-ionic chelating group containing a polyheterocycle / fused heterocycle. The organic rare earth luminescent complex scintillator can effectively convert high-energy X-rays into narrow-band visible light and near-infrared light, and is suitable for being applied to the fields of high-energy ray detection and high-resolution imaging.

The invention belongs to the technical field of narrow-band optical radiation imaging, and particularly relates to a narrow-band EUV and BEUV radiation imaging device based on a nano polycrystalline hexagonal boron nitride scintillator. The imaging device is composed of a nano polycrystalline hexagonal boron nitride scintillator plated with Zr, Mo or Nb metal, a high-precision camera, a vacuum interface flange and a shielding shell, and narrow-band selective imaging can be achieved in the wave band of 6-14 nm. The radiation imaging device has high sensitivity, narrow-band selectivity and excellent radiation resistance to 13.5 nm EUV light and 6.7 nm BEUV light, and compared with a traditional YAG-based imaging device, the radiation imaging device has remarkable advantages. The invention provides an innovative solution for high-performance EUV and BEUV radiation imaging, and has important application value in the field of EUV and BEUV beam diagnosis.

The invention discloses a position-sensitive reactor core optical fiber detector and a preparation method thereof, and relates to the field of radiation detection, the position-sensitive reactor core optical fiber detector comprises a probe (1), an optical fiber bundle (2) and an electronics system (3), and the probe (1), the optical fiber bundle (2) and the electronics system (3) are externally connected in sequence by using a high-temperature-resistant sealant (4); the probe (1) comprises a scintillator (11), an optical glass light guide rod (12) and a protective shell (13); the scintillator (11) and the optical glass light guide rod (12) are sequentially arranged according to a sandwich structure and are arranged in the protective shell (13); the optical fiber bundle (2) comprises a metal coating optical fiber (21), a high-temperature-resistant adhesive (22) and a stainless steel metal coil (23). The problems that an existing optical fiber detector cannot be used for detection work under the conditions of high temperature, high pressure and strong irradiation, and the existing optical fiber detector can only achieve flux detection and cannot be used for position detection are solved.

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.

The invention belongs to the technical field of light-emitting hybrid materials, and particularly discloses a preparation method and application of an efficient blue light emitting hybrid material. The preparation method comprises the following steps: dispersing cuprous halide, triphenylphosphine (tpp) and tetraethylammonium halide in N, N-dimethylformamide (DMF) according to a molar ratio of 1: 1: 1 to form a uniform solution, and performing ultrasonic treatment at room temperature to generate luminescent powder; and washing, centrifuging and drying in vacuum to obtain the hybrid material. The highest photoluminescence quantum yield is up to 70%, and the luminescence mechanism is thermally activated delayed fluorescence. The material can be used for a white light LED (CIE coordinate (0.33, 0.33)) and an X-ray scintillator (the light yield is 32537 photons / MeV, and the spatial resolution is 20lpmm <-1 >), and has the characteristics of simple preparation and excellent performance.

The invention relates to the technical field of photoluminescence materials, and particularly discloses a coordination polymer scintillator, a flexible scintillator film and application thereof.The prepared coordination polymer scintillator emits green light under a 360-nm excitation light source and under irradiation of an X-ray light source, has excellent linear responsiveness to X-rays and can be applied to the field of photoluminescence materials. According to the present invention, the prepared scintillator film has the obvious thermal activation enhanced luminescence, when the signal-to-noise ratio is 3, the lowest detection limit of the scintillator can achieve 29.6 nGy / s, the value is about 186 times lower than the detection limit (5500 nGy / s) required by a typical medical imaging system, and the prepared scintillator film can achieve the X-ray imaging effect on different objects, such that the X-ray imaging effect can be easily achieved. The scintillator film prepared by the invention can completely replace the current commercial scintillator.

The present invention relates to a photon counting detector and method. The detector (20) comprises a scintillator (21) configured to convert incident gamma radiation into optical photons, a pixelated photodetector (22) configured to detect the flux of optical photons, and circuitry (23). The circuitry (23) is configured to iteratively determine, per photodetector pixel, a photon count by accumulating the number of optical photons detected by the respective photodetector pixel during an integration time, assign the photon count, per photodetector pixel, to one of multiple energy bins by use of energy thresholds separating the multiple energy bins, and dynamically adapt, per photodetector pixel or group of photodetector pixels, the energy thresholds for use in a subsequent iteration based on information on the estimated photon count of said photodetector pixel or group of photodetector pixels in the subsequent iteration.

The invention discloses a muon track reconstruction method and imaging method based on a muon detector, and the method comprises the following steps: S1, according to the numbers of a first scintillator, a second scintillator and a third scintillator hit by the muon in any muon breakdown event, determining the number of the first scintillator, the number of the second scintillator and the number of the third scintillator; determining azimuth angles of the first scintillator, the second scintillator and the third scintillator hit by the muon; s2, according to the azimuth angle of the first scintillator hit by the muon, the x-axis coordinate value and the y-axis coordinate value of the incidence point and the emergence point of the muon are determined; according to the azimuth angle of the second scintillator hit by the muon and the azimuth angle of the third scintillator hit by the muon, respectively determining z-axis coordinate values of an incidence point and an emergence point of the muon; and S3, determining the track of the muon according to the x-axis coordinate value, the y-axis coordinate value and the z-axis coordinate value of the incidence point and the emergence point of the muon. Compared with the prior art, the method has the advantages that the accuracy of z-axis positioning is remarkably improved while high detection efficiency is kept, so that the accuracy of muon track reconstruction and ore body imaging is improved.

The invention discloses a rare earth based halide scintillator and a preparation method and application thereof, and belongs to the technical field of functional materials. The chemical formula of the rare earth based halide scintillator provided by the invention is RE (DMSO) 8 [Bi < 1-x > Sb < x > Cl6], wherein 0 < x < = 1; rE is a rare earth element; dMSO is a dimethyl sulfoxide ligand. By introducing the DMSO ligand and combining antimony doping, the formed rare earth based halide scintillator has intrinsic high atomic number, no self-absorption rare earth emission, no toxic element and outstanding comprehensive optical performance, so that the antimony-doped rare earth based halide scintillator has good luminescence performance and can be applied to the field of luminescent devices. Particularly, the compound has good fluorescence quantum efficiency and light yield, and has a good application prospect in the fields of detection, imaging or luminescence.