Study on digital nuclear signal processing system based on FPGA

Nuclear spectrum has been an important information in nuclear physics, radiation detection and nuclear technology application field, how to improve its measurement technology has been hot research issue. This paper designs a set of digital nuclear signal processing system based on FPGA, the digital nuclear signal after high-speed ADC sampling are transmitted to the test platform of computer through the high-speed USB interface circuit, which is controlled by FPGA, the digital nuclear signal are processed offline. At the same time, the signal is transmitted to the FPGA system, which to realize the filter shaper, baseline restorer, pulse pileup identification. By testing, the system can realize transmission and preservation of the original nuclear signal, but also complete the digital nuclear spectrometer function. (authors)