磁场中电子荷质比的测定  

The Measurement of the e/m of An Electron in the Magnetic Field

作　　者：周述苍[1] 杨燕婷[1] 周誉昌[1] 

机构地区：[1]广东工业大学实验教学部,510006

出　　处：《中国科技信息》2009年第14期36-37,40,共3页China Science and Technology Information

摘　　要：介绍了磁场中测定电子荷质比的方法,详细讨论了威尔尼特管法及磁聚焦方法的基本原理,并采用这两种方法对电子荷质比进行测定,最后分析了测量过程中对测量结果影响较大的因素。The measurement methods of the e/m of an electron in magnetic were introduced. And the principles of measurement methods using Wechnett Cylinder and magnetic focusing were also discussed. The results of the e/m were measured by using the two methods. The factors which could affect the accuracy of the measurement were analyzed in the last.

关 键 词：威尔尼特管 磁聚焦 荷质比 

分 类 号：O441[理学—电磁学]