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Safety experiment for loss of vacuum on a LHe vessel
Author(s): 
Pages: 193-196,214
Year: Issue:  3
Journal: CRYOGENICS AND SUPERCONDUCTIVITY

Keyword:  低温容器液氦安全性真空丧失漏热;
Abstract: 真空丧失对液氦容器的安全性是一大威胁,可能会造成十分严重的后果.通过试验,利用氦气及空气作为介质,对低温液氦容器在真空层发生泄漏情况下的漏热进行了研究.结果表明,多层绝热结构对于真空遭到破坏后的液氦容器能够起到一定的保护作用,而渗入到真空绝热层中气体的性质对于最终漏热情况也有影响,发现空气的"破坏力"明显小于氦气.
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