β粒子验证相对论动量-能量关系实验中单能电子阻止本领的研究  

STUDY ON STOPPING POWER OF MONO-ENERGETIC ELECTRONS IN THE EXPERIMENT TO VERIFY RELATIVISTIC RELATIONSHIP BETWEEN MOMENTUM AND ENERGY WITH β PARTICLES

作　　者：苗琦[1] 王明东[1] 杨晓段[1] 姚宏林[1] 

机构地区：[1]装备指挥技术学院,北京101416

出　　处：《物理与工程》2009年第4期20-23,共4页Physics and Engineering

摘　　要：本文利用RES—98型相对论效应实验谱仪测定了单能电子在空气中的阻止本领,对单能电子在空气中能量损失规律进行了讨论,分析了β粒子验证相对论动量-能量关系实验中空气对实验结果的影响;实现了在普通实验室进行单能电子阻止本领的测量.Using RES-98 serial relativity effect spectrometer, the stopping power of monoenergetic electrons in air has been measured. The mechanism of the energy lost for monoenergetic electrons in air has been discussed. The effect of air molecule on the result of the experiment to verify relativistic relationship between momentum and energy with β particles has also been analyzed. This paper has demonstrated the measurement of the stopping power ability of mono-energetic electrons in a common lab.

关 键 词：动量-能量关系 单能电子 能量损失 阻止本领 

分 类 号：O572.21[理学—粒子物理与原子核物理]