Background suppression in the Edelweiss-III experiment

Journal Article · Thu Aug 08 00:00:00 EDT 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4818096· OSTI ID:22218168

Navick, X. -F. ^[1]

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1. CEA/IRFU/SEDI bat.534, Gif sur Yvette (France)

In dark matter WIMP searches the neutron shielding plays a crucial role in attenuating neutron flux and hence, suppressing nuclear recoil event rate - one of the key background mimicking WIMP interactions. The transition from EDELWEISS-II to EDELWEISS-III with 40 detectors with increased mass and improved background rejection has required the modification of the neutron shielding. In this paper we describe the new neutron shielding design and give an estimate of the expected neutron rate in comparison with the previous stage of the experiment.

• OSTI ID: 22218168
• Journal Information: AIP Conference Proceedings, Vol. 1549, Issue 1; Conference: LRT 2013: 4. international workshop on low radioactivity techniques, Assergi (Italy), 10-12 Apr 2013; Other Information: (c) 2013 AIP Publishing LLC; 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
ABSORPTION
COMPARATIVE EVALUATIONS
COSMIC RADIATION
DESIGN
MULTIPARTICLE SPECTROMETERS
NEUTRON FLUX
NEUTRONS
NONLUMINOUS MATTER
PARTICLE IDENTIFICATION
RADIATION DETECTION
RADIATION DETECTORS
RECOILS
SHIELDING
WEAK INTERACTIONS