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Screening Surface Contamination with BetaCage

Schnee, R. W. and Ahmed, Z. and Golwala, S. R. and Grant, D. R. and Poinar, K. (2007) Screening Surface Contamination with BetaCage. In: Topical Workshop on Low Radioactivity Techniques. AIP Conference Proceedings. No.897. American Institute of Physics , Melville, NY, pp. 20-25. ISBN 978-0-7354-0402-1.

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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.

Item Type:Book Section
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Golwala, S. R.0000-0002-1098-7174
Additional Information:© 2007 American Institute of Physics. Published online 28 March 2007. RWS and DRG thank the National Science Foundation for financial support under grant no. PHY-0503729. ZA and SRG acknowledge support from the California Institute of Technology.
Funding AgencyGrant Number
Subject Keywords:low radioactive background screening, beta decay, alpha decay, dark matter, radioisotope dating, proportional counter
Series Name:AIP Conference Proceedings
Issue or Number:897
Classification Code:PACS: 29.40.Cs, 29.40.Gx, 91.80.Hj, 92.20.Td 23.40.-s, 23.60.+e, 95.35.+
Record Number:CaltechAUTHORS:20160505-082300157
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:66673
Deposited By: Ruth Sustaita
Deposited On:05 May 2016 22:44
Last Modified:03 Oct 2019 09:58

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