Abstract: A spatial encoding crystal array, a spatial encoding detector, a spatial encoding method, a spatial encoding apparatus, and a storage medium are provided. The spatial encoding crystal array comprises: a plurality of scintillation crystal strips (10) and isolation layers (20), wherein the isolation layers (20) are arranged in a depth direction of the scintillation crystal strips (10) and are located between adjacent scintillation crystal strips (10); and the spatial distribution of the isolation layers (20) satisfies a predetermined spatial encoding function, and the properties of the isolation layers (20) conform to predetermined spatial encoding properties. The isolation layers (20) for spatial encoding are formed in different areas between the scintillation crystal strips (10), so as to form incomplete optical isolation, thereby saving on spatial distribution information of visible-light photons, and accurately obtaining three-dimensional spatial position information of high-energy photons.

Abstract: A timing apparatus and method for a radiation detection, measurement, identification, and imaging system are disclosed. The apparatus comprises high-energy photon detectors, a light pulse signal generator and an optical fiber. Each high-energy photon detector comprises a scintillation crystal and an optical-to-electrical conversion multiplying device. The high-energy photon detectors are all provided with light transmission holes. Light pulse signals are propagated to the scintillation crystals through the light transmission holes, then propagated to the surfaces of the optical-to-electrical conversion multiplying devices through the scintillation crystals, converted and multiplied by the optical-to-electrical conversion multiplying devices, and processed and read by an electronic circuit.

Abstract: A method is for acquiring a time point where a glimmering pulse passes over a threshold. The method includes: converting a relationship between a pulse and a threshold into high and low level signals; segmenting output level signals. For a phase where a pulse signal passes over and is higher than a preset threshold and a phase where a pulse signal passes over and is lower than the preset threshold, the two phases respectively include several time points generated by several jumps, and the time point where a pulse passes over a threshold is recorded as any one jump time point or a weighted value of any two or more jump time points. By selecting one jump time point or weighting any two or more jump time points, a more accurate time point where a pulse actually passes over a threshold can be obtained.

Abstract: A multilayer scintillation crystal (1) comprises n layers of array scintillation crystals and m layers of continuous scintillation crystals which have uncut inner parts, both n and m being integers greater than or equal to 1 and a sum of n and m being smaller than or equal to 10. The array scintillation crystals are formed by strip-type scintillation crystals arranged along the width and length directions, the array scintillation crystals and the continuous scintillation crystals are sequentially coupled along the height direction of the strip-type scintillation crystals to form the multilayer scintillation crystal (1), and the continuous scintillation crystals are located at the bottom of the multilayer scintillation crystal (1).