摘要
dE/dx在物理分析中是粒子鉴别一个非常重要的量,要求测量值必须是对电离强度的无偏估计。所以对空间电荷效应做出修正是非常必要的。论文对不同βγ范围的各种粒子以及不同高压下的空间电荷效应进行了修正。检验结果表明,空间电荷效应的影响非常明显,修正后的结果增加了dE/dx粒子鉴别的可靠性。
When the dE/dx is used in Particle Identification, the data taking by measuring should be no offset, for the dE/dx is very important in PID. So, the tuning of the Space Charge Effect is very necessary. It shows the results of the tuning on different βγ and different high voltage, and the results indicate that the infection of the Space Charge Effect is significant. The dE/dx tuning guarantees the reliability when the dE/dx is used in PID.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2009年第5期1110-1114,1247,共6页
Nuclear Electronics & Detection Technology
基金
国家自然科学基金(111087513811)资助
