The BiPo detector for ultralow radioactivity measurements

Journal Article · Wed Mar 28 00:00:00 EDT 2007 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2722062· OSTI ID:21055021

Bongrand, M ^[1]

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1. LAL, Universite Paris-Sud 11, CNRS/IN2P3, Orsay (France)

The BiPo project is dedicated to the measurement of extremely low radioactivity contamination of SuperNEMO source foils (208Tl < 2 {mu}Bq/kg and 214Bi < 10 {mu}Bq/kg). The R and D phase is started : a modular BiPo prototype with its shielding test facility is under construction. The goal of this prototype is to study the background and particularly the surface contamination of scintillators. The first capsule has been installed in the Canfranc Underground Laboratory in October, 17th and is now taking data. After 10.7 days of measurements, a preliminary upper limit on the surface radiopurity of the scintillators of A(208Tl) < 60 {mu}Bq/m2 (90% C. L.) has been obtained.

• OSTI ID: 21055021
• Journal Information: AIP Conference Proceedings, Vol. 897, Issue 1; Conference: LRT 2006: Topical workshop on low radioactivity techniques, Aussois (France), 1-4 Oct 2006; Other Information: DOI: 10.1063/1.2722062; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
BISMUTH
BISMUTH 214
CAPSULES
FOILS
PHOSPHORS
POLONIUM
RADIOACTIVITY
SHIELDING
SOLID SCINTILLATION DETECTORS
SURFACE CONTAMINATION
SURFACES
TEST FACILITIES
THALLIUM 208
UNDERGROUND