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Screening surface contamination with BetaCage

  • R. W. Schnee
  • , Z. Ahmed
  • , S. R. Golwala
  • , D. R. Grant
  • , K. Poinar
  • Case Western Reserve University
  • California Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Existing screening facilities are insufficiently sensitive to meet the needs of rare-event experiments for low-energy electron emitters and alpha-decaying isotopes. To provide such screening, the BetaCage will be a low-background, atmospheric-pressure neon drift chamber with unprecedented sensitivity to emitters of low-energy electrons and alpha particles. Minimization of the detector mass and use of radiopure materials reduce background events. The chamber design accepts nearly all alphas and low-energy electrons from the sample surface while allowing excellent rejection of residual backgrounds. A non-radiopure prototype is under construction to test the design. The BetaCage will provide new infrastructure for rare-event science as well as for a wider community that uses radioactive screening for areas including archaeology, biology, climatology, environmental science, geology, planetary science, and integrated-circuit quality control.

Original languageEnglish
Title of host publicationTopical Workshop on Low Radioactivity Techniques
Subtitle of host publicationLTR 2006
Pages20-25
Number of pages6
DOIs
StatePublished - 2007
EventTopical Workshop on Low Radioactivity Techniques: LTR 2006 - Aussois, France
Duration: Oct 1 2006Oct 4 2006

Publication series

NameAIP Conference Proceedings
Volume897
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceTopical Workshop on Low Radioactivity Techniques: LTR 2006
Country/TerritoryFrance
CityAussois
Period10/1/0610/4/06

Keywords

  • Alpha decay
  • Beta decay
  • Dark matter
  • Low radioactive background screening
  • Proportional counter
  • Radioisotope dating

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