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Canister cryogenic system for cooling germanium semiconductor detectors in borehole and marine probes

Nuclear Instruments and Methods

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DOI: 10.1016/0029-554X(75)90216-5

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Abstract

High resolution intrinsic and lithium-drifted germanium gamma-ray detectors operate at about 77-90 K. A cryostat for borehole and marine applications has been designed that makes use of prefrozen propane canisters. Uses of such canisters simplifies cryostat construction, and the rapid exchange of canisters greatly reduces the time required to restore the detector to full holding-time capability and enhances the safety of a field operation where high-intensity 252Cf or other isotopic sources are used. A holding time of 6 h at 86 K was achieved in the laboratory in a simulated borehole probe in which a canister 3.7 cm diameter by 57 cm long was used. Longer holding times can be achieved by larger volume canisters in marine probes. ?? 1975.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Canister cryogenic system for cooling germanium semiconductor detectors in borehole and marine probes
Series title:
Nuclear Instruments and Methods
DOI:
10.1016/0029-554X(75)90216-5
Volume
123
Issue:
3
Year Published:
1975
Language:
English
Publisher:
Elsevier
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Nuclear Instruments and Methods
First page:
599
Last page:
603
Number of Pages:
5