Difference between
version 4
and
version 1:
At line 1 added 7 lines. |
+ |
+ |LHe hold time with stable temperature below 50 K: | 2.5 days |
+ [ori2a.jpg] |
+ !Problems |
+ |
+ There is a tiny leak, probably from the He reservoir to the main vacuum. |
+ The main vacuum has to be pumped constantly. |
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