摘要
本文在对 Busch法 (磁聚焦法 )测定电子比荷的原理和方法深入研究的基础上 ,在相同的实验条件下 ,同一套实验系统上进行了对比实验 ,延伸出散斑聚焦法、亮线聚焦法、蜗牛经理聚焦法 ,对三种实验方法的原理和过程做了详尽阐述 ,丰富了大学物理实验的教学内容 ,为大学实验教师因材施教提供了可靠参考依据 .
The theories and methods of determining electron specific charge by using Busch method were studied.Under the identical condition,the contrastive experiments were carried out in the same experimental system.The focus of scattered spot the focus of bright line and the focus of snail line were set forth in detail.The contents of college physics laboratory are enriched and the reliable references are provided for the teachers.
出处
《天津城市建设学院学报》
CAS
2001年第2期98-102,共5页
Journal of Tianjin Institute of Urban Construction
关键词
磁聚焦
电子比荷
散斑
螺旋线
Busch法
magnetic focusing
electron specific charge
scattered spot
helix