Safety interlock and vent system to alleviate potentially dangerous ice blockage of top-loading cryostat sample sticks
2013 ◽
Vol 46
(4)
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pp. 1236-1239
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Keyword(s):
A combined solution is presented for minimizing the safety hazards associated with closed cycle cryostats described by Swainson & Cranswick [J. Appl. Cryst.(2010),43, 206–210]. The initial solution is to install a vent tube with one open end deep inside the sample space and a pressure relief valve at the top. This solution works for either a cryogen or a cryogen-free (closed cycle) system. The second approach, which can be combined with the first and is applicable to cryogen-free cryostats, involves electrically interlocking the closed cycle refrigerator compressor to the sample space, so that the system cannot be cooled in the presence of a leak path to air.
Keyword(s):
Keyword(s):
2010 ◽
Vol 1
(MEDSI-6)
◽
1999 ◽
Vol 9
(2)
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pp. 3704-3707
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2001 ◽
Vol 72
(8)
◽
pp. 3281-3290
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Keyword(s):
2009 ◽
Vol 35
(5)
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pp. 1769-1773
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