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

  • Craig E. Aalseth
  • Anthony R. Day
  • Eric W. Hoppe
  • Todd W. Hossbach
  • Brian J. Hyronimus
  • Martin E. Keillor
  • Kevin E. Litke
  • Esther E. Mintzer
  • Allen Seifert
  • Glen A. Warren
Article

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.

Keywords

Radiopurity Gas proportional counter Electroformed copper Low-background 

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    Hoppe EW, Seifert A, Aalseth CE, Bachelor PP, Day AR, Edwards DJ et al (2007) Nucl Instrum Methods Phys Res Sect A 579:486–489CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • Craig E. Aalseth
    • 1
  • Anthony R. Day
    • 1
  • Eric W. Hoppe
    • 1
  • Todd W. Hossbach
    • 1
  • Brian J. Hyronimus
    • 1
  • Martin E. Keillor
    • 1
  • Kevin E. Litke
    • 1
  • Esther E. Mintzer
    • 1
  • Allen Seifert
    • 1
  • Glen A. Warren
    • 1
  1. 1.Pacific Northwest National LaboratoryRichlandUSA

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