摘要
本文主要介绍和描写了用于快中子引起的发射带电粒子核反应研究的具有共阴极的两个背靠背的双重屏栅电离室。用双参数数据获取系统可同时得到阳极和阴极的关联信号。由此可以研究由贴在阴极上的靶物质发射的带电粒子的能量和角分布,实验上用Puα放射源来检验屏栅电离室的基本性能,由双参数数据获取系统得到其双维谱,经数据处理之后,其角分布基本上呈现各向同性分布,对Puα放射源的能量(E=5.499MeV),其能量分辨串为~2%,此电离室已用于(40) ̄Ca(n,α)和 ̄(64)Zn(n,α)等核反应研究工作。
A twin ionization chamber with a common cathode and frisch grids is described for(n,a ),(n,p)studies.The chamber is used to determine the energy spectra and angular distribution of the charged particles emitted from the sample positioned on the cathode by dual parameter measurements of coinciding pulses from the an-ode and cathode of the ionization chamber,Pu a source is used to test the property of the chamber an isotropic angular distribution is basically showed and the energy resolution is about 2%. This ionization chamber had already been applied to study of the Ca(n,a)and 2n(n,a)reactiOns.(
出处
《核电子学与探测技术》
CSCD
北大核心
1995年第2期72-78,共7页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金和核工业总公司的支持
关键词
核反应
屏栅电离室
数据获取系统
n
a)
(n
p)reaction ionization chamberAngular distribution Dual parameters data acquisition system)