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Publication  > Articles in Impacted Journals  > 'Influence of neutrons and γ-rays in the Fréjus underground laboratory on the NEMO experiment'
Influence of neutrons and γ-rays in the Fréjus underground laboratory on the NEMO experiment

Author
NEMO Collaboration  NEMO Collaboration

Year
2001

Scientific journal
Nucl. Instr. and Meth. in Phys. Res. A457 (2001) pp. 487-498


Abstract
To be sensitive to an effective Majorana neutrino mass, 〈mν〉, on the order of 0.1 eV, the NEMO 3 double beta (ββ(0ν)) decay experiment requires precise knowledge and control of the backgrounds. The effect of neutrons and γ-rays from the Fréjus underground laboratory (LSM, Laboratoire Souterrain de Modane) has been studied during 10 700 h of data collection. The data were taken with a NEMO 2 prototype detector using different shield configurations. Monte Carlo calculations with GEANT/MICAP code and a new library of γ-rays from neutron captures are presented. The implied consequences for the NEMO 3 detector which is under construction are discussed. The neutrinoless double beta decay background induced by neutrons and γ-rays within the LSM will be suppressed to the very suitable level of 0.1 event in a life time of five years given the appropriate shield and magnetic field.

Cite article as:
. NEMO Collaboration, "Influence of neutrons and γ-rays in the Fréjus underground laboratory on the NEMO experiment", Nucl. Instr. and Meth. in Phys. Res. A457 (2001) pp. 487-498 (2001)

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