Radon induced surface contaminations in low background experiments - INSPIRE

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Radon induced surface contaminations in low background experiments

L. Pattavina
(
- Gran Sasso
)

Aug 12, 2013

4 pages

Part of Proceedings, 4th Topical Workshop on Low Radioactivity Techniques (LRT 2013) : L'Aquila, Italy, April 10-12, 2013, 82-85

Published in:

AIP Conf.Proc. 1549 (2013) 1, 82-85

Contribution to:

- LRT 2013
, 82-85

Published: Aug 12, 2013

DOI:

10.1063/1.4818081

reference search2 citations

Citations per year

Abstract: (AIP)

In neutrinoless double-beta decay and dark matter searches, one of the main issues is to increase the experimental sensitivity through careful material selection and production, minimizing the background contributions. In order to achieve the required, extremely low, counting rates, very stringent requirements must be fulfilled in terms of bulk material radiopurity. As the experimental sensitivity increases, the bulk impurities in the detector components decrease, and surface contaminations start to play an increasingly significant role In fully active detectors, like cryogenic particle detectors, surface contaminations are a critical issue (as shown by the CUORICINO experiment). 222Rnis by far the most intense source of airborne radioactivity, and if a radio-pure material is exposed to environment where the Radon concentration is not minimized, 210Pband 210Pocontaminations can occur. The mechanisms and the dynamics of Radon-induced surface contaminations are reviewed, and specific solutions to prevent and to reject the induced background are presented.

Radiation detectors
Bulk materials
Surface dynamics
Cryogenics
Dark matter
background: radioactivity
background: low
double-beta decay: (0neutrino)
surface
dark matter: detector

References(6)

Figures(0)

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