VO, H.H.; KANAMARU, S.; MARQUET, Catherine; NAKAMURA, H.; NOMACHI, M.; PIQUEMAL, F.; RICOL, J.S.; SUGAYA, Y.; YASUDA, K.

doi:10.1109/TNS.2008.2005718

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VO, H.H.

KANAMARU, S.

MARQUET, Catherine
Centre d'Etudes Nucléaires de Bordeaux Gradignan [CENBG]

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Article de revue

Ce document a été publié dans

IEEE Transactions on Nuclear Science. 2008-12, vol. 55, p. 3717-3724

Institute of Electrical and Electronics Engineers

Résumé en anglais

Many experiments on neutrinoless double beta decays have been proposed recently for determining the effective mass of neutrinos. Some of them use a plastic scintillation for measuring the beta-ray energy. Achieving a high energy resolution is critical for neutrinoless double beta decay experiments (e.g., MOON and superNEMO). The motivation of this study is to investigate the energy resolution of a plastic scintillation detector in terms of ldquocomponentsrdquo in the MeV-electron region. It is known that the total energy resolution of a plastic scintillation detector for a monoenergetic spectrum consists of two components: statistical and intrinsic energy resolution. In this paper, these two components were investigated for electrons. Experiments on protons were also performed for the purpose of comparison. Three additional experiments were performed to determine (1) the uniformity of the plastic scintillator materials by scanning a 2.8-MeV proton microbeam, (2) the energy spread of electrons and protons, and (3) the effect of the electron-beam size on the set-up. These additional experiments were performed to ensure that these factors did not affect measurements of the two above-mentioned components.< Réduire

Mots clés

Energy resolution

scintillation detectors

DECAYS

NEUTRINOS

MOON

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Energy resolution of plastic scintillation detector for beta rays

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Résumé en anglais

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