Neutron background in large-scale xenon detectors for dark matter searches

被引：86

作者：

Carson, MJ ^{[1
]}

Davies, JC ^{[1
]}

Daw, E ^{[1
]}

Hollingworth, RJ ^{[1
]}

Kudryavtsev, VA ^{[1
]}

Lawson, TB ^{[1
]}

Lightfoot, PK ^{[1
]}

McMillan, JE ^{[1
]}

Morgan, B ^{[1
]}

Paling, SM ^{[1
]}

Robinson, M ^{[1
]}

Spooner, NJC ^{[1
]}

Tovey, DR ^{[1
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

来源：

ASTROPARTICLE PHYSICS | 2004年 / 21卷 / 06期

关键词：

dark matter; WIMPs; neutron background; neutron flux; spontaneous fission; (alpha-n) reactions; radioactivity; cosmic-ray muons underground; photomultipliers;

D O I：

10.1016/j.astropartphys.2004.05.001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Simulations of the neutron background for future large-scale particle dark matter detectors are presented. Neutrons were generated in rock and detector elements via spontaneous fission and (alpha, n) reactions, and by cosmic-ray muons. The simulation techniques and results are discussed in the context of the expected sensitivity of a generic liquid xenon dark matter detector. Methods of neutron background suppression are investigated. A sensitivity of 10(-9)-10(-10) pb to WIMP-nucleon interactions can be achieved by a tonne-scale detector. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：667 / 687

页数：21

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