Detector Group 2019/10/08 By With the self developed MVT technology, the detector group designs high performance all-digital PET detectors which shows the characteristics of digitization, modularization and standardization. By using MVT digitization method with effective use of digital circuits and various signal processing technologies, starting from the most primitive scintillation pulse signal, MVT digital sampling can accurately extract the position, energy and time information of a single event, and complete the high precision restoration of the signal. On the basis of MVT electronics, the methods of PET channel multiplexing and depth information detection are studied to further improve the detector performance. By using modular design, the detector is divided into different functional modules, which simplifies the system design to increase the scalability of the system functions, facilitates the debugging, maintenance and updating of the system, and facilitates the realization of automatic calibration of the system. By adopting standardized design and defining software and hardware interfaces of each module, a complete open platform is formed. This also enables PET detectors to quickly and efficiently construct optimal geometric structures corresponding to different application scenarios for different application areas, in order to expand the application of PET in disease diagnosis, treatment, clinical radiotherapy and so on.
