Research on Gamma Spectroscopy System While Drilling Based on DSP and FPGA

Abstract The traditional gamma energy spectrum measurement system performs filtering, shaping, amplification, baseline recovery, stacking discrimination, peak hold, and low-speed ADC sampling on the pulse signal output by gamma-ray detector. It generates curves. There are problems such as large dead time accumulation. A high-speed digital processing chip (FPGA) a used to perform full amplified ray pulses directly. (DSP) directly realizes recognition, which remarkably improves efficiency of acquisition is very suitable for developing drill spectroscopy system. Scholars have studied Gaussian shaping algorithm trapezoidal in gamma-spectroscopy while drilling explore this phenomenon. In case, based DSP FPGA designed. functions full-pulse curve generation narrow input also converts curve. transmitted host computer through serial port analysis.