Q DEGRADATION OF NIOBIUM CAVITIES DUE TO HYDROGEN CONTAMINATION
Q DEGRADATION OF NIOBIUM CAVITIES DUE TO HYDROGEN CONTAMINATION
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Q 由于氢污染导致铌空腔退化
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
B. Bonin
中科院分区：
文献类型：
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作者：
B. Bonin
在过去的两年中，世界上的几个实验室1 -9观察到超导铌腔在一定的冷却条件下Q值的退化。必须尽快找到补救办法，因为这种现象影响到目前正在建设的各种加速器的空腔。本文的目的有三：1）综合与这种“Q病”相关的症状; 2）讨论造成这种效果的机制; 3）提出摆脱这种轶事的治疗方法，但麻烦的现象。
In the past two years, several laboratories1-9 around the world have observed degradations of the Q value of superconducting Niobium cavities under certain cooldown conditions. A remedy has to be found soon, since this phenomenon affects cavities for various accelerators presently under construction. The purpose of this paper is threefold: 1) make a synthesis of the symptoms associated with this 'Q disease'; 2) discuss the mechanisms which are responsible for the effect; 3) propose cures to get rid of this anecdotic, but troublesome phenomenon.