A New Algorithm for Spectral Drift Calculation in a Gamma-ray Spectrometer

被引：2
|
作者：
Qin Zhangjian [1 ]
Ge Liangquan [1 ]
Wu Qifan [2 ]
Cheng Jianping [2 ]
机构：
[1] Chengdu Univ Technol, Sch Nucl Technol & Automat Engn, Chengdu 610059, Peoples R China
[2] Tsinghua Univ, Dept Phys Elect, Beijing 100084, Peoples R China
来源：
SUSTAINABLE CONSTRUCTION MATERIALS AND COMPUTER ENGINEERING | 2012年 / 346卷
关键词：
Spectral drift; Spectra stabilization; Gamma-ray spectrometer; Least squares method; STABILIZATION; DETECTORS;
D O I：
10.4028/www.scientific.net/AMR.346.705
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Spectral drift of any origin consisting of detectors and nuclear electronics affects the long-term stability in a gamma-ray spectrometer, which is essential to maintaining the high quality of gamma energy spectra. The feedback regulation according to the quantity of spectral drift can restore the system's stability. A new algorithm for spectral drift calculation is given in this paper. A digital logic unit is developed in a FPGA chip based on the algorithm, and a MCU coordinating with it can fast calculate the spectral drift within only less than 110 instruction periods.
引用
收藏
页码：705 / +
页数：2
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