摘要
本文依据能量守恒，就ＲＦ超导腔低温测量方法和原理进行了推敲．指出：由于在超导腔中存在场致电子发射（ＦＥ）效应，高功率腔和低功率腔在测量方法上是有区别的．并系统地推导了获得超导腔物理参数，比如空载Ｑ０、最大表面电场和最大加速梯度等的准确公式．
This paper describes the measurement principle and methods of RF superconducting Nb cavity according to the energy conservation. It suggests that there are differences in measuring methods between high power and low power cavities due to electron field emission(FE) existing in superconducting Nb cavities. A set of exact formulae and equations on physics parameters of superconducting Nb cavities has been systematically derived, such as quality factor Q0 without loads, the maximum of the surface electrical field intensity Esp, the maximum of the accelerating gradient Eacc, etc.
出处
《高能物理与核物理》
CSCD
北大核心
1996年第7期663-672,共10页
High Energy Physics and Nuclear Physics
关键词
射频
超导
场致发射
低温实验
衰减法
RF superconducting, field Emission(FE), cold test, decrement method, sample method.
