BH1324C型单路α谱仪系统能量分辨率影响因素分析  

Analysis of Influencing Factors on Energy Resolution of Single-way Alpha Spectrometer System MOD. BH1324C

作　　者：马文彦[1] 裴永泉[2] 田晨扬[1] 张全虎[1] 付广智[2] 左广霞[1] 彭雪星[2] 郑耿乐 

机构地区：[1]第二炮兵工程学院 [2]中国人民解放军96411部队 [3]青州士官学校

出　　处：《核电子学与探测技术》2009年第6期1490-1493,共4页Nuclear Electronics & Detection Technology

摘　　要：α谱仪系统的能量分辨率是描述探测系统性能的重要指标,也是决定能谱质量的主要因素。根据BH1324C型单路α谱仪系统的结构组成和工作原理,研究了不同的探测器工作偏压、不同的探测距离和不同大气气压条件下对系统能量分辨率的影响,并进行了双因素方差分析。结果表明,系统在工作偏压为80V、探测距离为1.25cm、气压为15Pa条件下,对5.486MeV的α射线能够获得展宽FWHM为5.7keV的能谱。Energy resolution is an important parameter which describes the performance of alpha spectrometer system,and also the major factor that determines the quality of energy spectrum. According to the constitution and principle of single-way alpha spectrometer system MOD. BH1324C, it studies the influence of different bias voltage, different detection range, different atmospheric pressure on the system＇s energy resolution, executes two-factor variance analysis. Results show that energy spectrum can take on the smallest FWHM,when bias voltage is 80V, detection range is 1.25cm and air pressure is 15Pa. The best FWHM can be 5. 7keV for the 5. 486MeV alpha spectrum.

关 键 词：单路α谱仪系统 能量分辨率 α能谱 

分 类 号：TL817.2[核科学技术—核技术及应用]