Safety interlock and vent system to alleviate potentially dangerous ice blockage of top-loading cryostat sample sticks

被引：2

作者：

Pangelis, S. ^{[1
]}

Olsen, S. R. ^{[1
]}

Scherschligt, J. ^{[2
]}

Leao, J. B. ^{[2
]}

Pullen, S. A. ^{[1
]}

Dender, D. ^{[2
]}

Hester, J. R. ^{[1
]}

Imperia, P. ^{[1
]}

机构：

[1] Australian Nucl Sci & Technol Org, Lucas Heights, NSW 2234, Australia

[2] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA

来源：

JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2013年 / 46卷

关键词：

closed cycle refrigerators; cryo-coolers; cryo-furnaces; cryogen free; cryostats; ice blockage; icing up; neutron scattering; safety interlocks; sample environment; sample sticks; top loading;

D O I：

10.1107/S0021889813010868

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：1236 / 1239

页数：4

共 5 条

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[2]

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[3]

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[4] Safety considerations with top-loading cryostats, involving 'icing-up' of the sample space with solid air [J].

Swainson, Ian Peter ;

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