| abstract |
A full-simulation nuclide distribution imaging method and system, comprising a front-end signal detection module, the module comprising a scintillation crystal array module and a silicon photomultiplier tube array module in any combination; a data preprocessing module analyzes and analyzes a scintillation pulse event signal. The discriminative preprocessing converts events into time, position, and energy coincidence events; the image reconstruction module realizes full analog processing of valid signal events, fully ensuring the integrity of events, and adopts the numerical control resistance circuit inversion module to simplify the actual large-scale matrix calculation. Reverse process, solve the stability, existence and uniqueness of understanding; display module to transform and display data. The main parts of the system are all analog circuits, so that the electronic radiation interference of the instrument is small, and its cost is lower and its practicability is stronger. The method lies in the corresponding setting of the parameters, and the image reconstruction is simply and conveniently realized by using Kirchhoff's law. |