嫦娥二号γ谱的非线性谱漂校正  

Calibration Technique of CE2 Gamma-Ray Nonlinear Spectral Drift

作　　者：李晓丽[1] 葛良全[1] 杨佳[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,成都610059

出　　处：《核电子学与探测技术》2016年第3期257-259,共3页Nuclear Electronics & Detection Technology

基　　金：国家自然科学基金(41374136);四川教育厅科技(14ZB0066);高校博士学科基金(20125122120009)资助

摘　　要：针对嫦娥二号γ谱的非线性谱漂特点,提出了一种基于能量对应的谱漂校正方法。选取了嫦娥二号γ谱线作为研究对象,进行谱漂校正实验。结果显示:该方法能够有效校正嫦娥二号γ谱的非线性漂移,使Fe峰和Mg/K峰的峰位漂移范围控制在±1道范围内。During the detection of Changb - 2 （ CE2 ） gamma - ray spectrometer, Changb - 2 （ CE2 ） gamma - ray spectrum drifted because of the change of temperature and so on. In order to solve the problem of Chang - 2 （CE2） gamma - ray nonlinear spectral drift, the method was proposed which was based on the theory that the energy of element characteristic peak is fixation. Algorithm for realization of the method was introduced in the paper. The calibration experiment was carried out which was based on CE2 gamma - ray spectrum. The results have shown that the method could reduce influence of spectrum drift effectively; the drift range of Fe and Mg/ K peak position was plus or minus 1 after calibration.

关 键 词：嫦娥二号γ谱 非线性谱线漂移 能量对应 

分 类 号：TH842[机械工程—仪器科学与技术]