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Design and construction of a low-background, internal-source proportional counter.

Authors :
Aalseth, Craig E.
Day, Anthony R.
Hoppe, Eric W.
Hossbach, Todd W.
Hyronimus, Brian J.
Keillor, Martin E.
Litke, Kevin E.
Mintzer, Esther E.
Seifert, Allen
Warren, Glen A.
Source :
Journal of Radioanalytical & Nuclear Chemistry; Oct2009, Vol. 282 Issue 1, p233-237, 5p, 2 Diagrams, 2 Graphs
Publication Year :
2009

Abstract

High-purity copper has emerged as a preferred construction material for ultra-low-background HPGe spectrometers and offers excellent bulk radiopurity along with good electrical, thermal, and vacuum properties. Recently, these materials and techniques have been applied to the construction of low-background internal-source gas proportional counters. This work describes the design, construction, and testing of an ultra-low-background internal-source gas proportional counter built primarily of high purity electroformed copper. Energy resolution of ~10% FWHM at 59.5 keV has been achieved, a low-energy threshold of ~3 keV has been reached, and gas gain stability over a 4-week period has been demonstrated. Progress toward low-background operation is described. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02365731
Volume :
282
Issue :
1
Database :
Complementary Index
Journal :
Journal of Radioanalytical & Nuclear Chemistry
Publication Type :
Academic Journal
Accession number :
44729502
Full Text :
https://doi.org/10.1007/s10967-009-0258-5