| RF超导腔低温测量原理 |
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| 引用本文： | 俎栋林,陈佳洱.RF超导腔低温测量原理[J].中国物理 C,1996,20(7):663-672. |
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| 作者姓名： | 俎栋林 陈佳洱 |
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| 作者单位： | 北京大学重离子物理所 |
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| 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.
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| 关 键 词： | 射频超导 场致发射 低温实验 衰减法 取样法 |
The Measurement Principle of RF Superconducting Nb Cavity |
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| Zu Donglin,Chen Jiaer.The Measurement Principle of RF Superconducting Nb Cavity[J].High Energy Physics and Nuclear Physics,1996,20(7):663-672. |
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| Authors: | Zu Donglin Chen Jiaer |
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| Abstract: | 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. |
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| Keywords: | RF superconducting field Emission(FE) cold test decrement method sample method |
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