A detection system to measure muon-induced neutrons for direct dark matter searches

作者：Kozlov V Yu^*; Armengaud E; Augier C; Benoit A; Berge L; Besida O; Bluemer J; Broniatowski A; Brudanin V; Chantelauze A; Chapellier M; Chardin G; Charlieux F; Collin S; Defay X; De Jesus M; Di Stefano P; Dolgorouki Y; Domange J; Dumoulin L; Eitel K; Gascon J; Gerbier G; Gros M; Hannawald M; Herve S; Juillard A; Kluck H; Lemrani R; Loaiza P; Lubashevskiy A; Marnieros S; Navick X F; Olivieri E; Pari P; Paul B; Rozov S

来源：Astroparticle Physics, 2010, 34(2): 97-105.

DOI：10.1016/j.astropartphys.2010.06.001

• Neutron background
• Muon-induced neutrons
• Dark matter
• Underground physics

Muon-induced neutrons constitute a prominent background component in a number of low count rate experiments, namely direct searches for dark matter. In this work we describe a neutron detector to measure this background in an underground laboratory, the Laboratoire Souterrain de Modane. The system is based on 1 m(3) of Gd-loaded scintillator and it is linked with the muon veto of the EDELWEISS-II experiment for coincident muon detection. The system was installed in autumn 2008 and passed since then a number of commissioning tests proving its full functionality. The data-taking is continuously ongoing and a count rate of the order of 1 muon-induced neutron per day has been achieved.

• 出版日期2010-9
• 单位中国地震局