https://doi.org/10.1140/epjst/e2008-00799-2
MOON for neutrino-less double beta decays
Majorana neutrinos by spectroscopic studies of double beta decays
1
RCNP, Osaka University, Ibaraki, Osaka 567-0047, Japan
2
National Institute of Radiological Sciences, Chiba 263-8555, Japan
3
Czech Technical University in Prague, Faculty of Nuclear Sciences and
Physical Engineering, Brehova, Prague, Czech Republic
4
CENPA, University Washington, Seattle, WA 98195, USA
5
LANL, PO Box 1663, MSH 803, Las Alamos, NM 87545, USA
6
Physics and Astronomy, Univ. North Carolina, Chapel Hill, NC 27599, USA
7
Charles University, FMP, CZ-18000 Praha 8, Czech Republic
8
IAS, University of Tokushima, Tokushima 770-8592, Japan
9
Physics, International Christian University, Tokyo 181-8585, Japan
10
Hiroshima University, Higashi Hiroshima, Hiroshima 739-8527, Japan
11
VNIIEF, Nizhny Novgorod Region, Mira Ave 37, 607188 Sarov, Russia
12
Joint Institute for Nuclear Research, 141980 Dubna, Russia
13
OULNS, Physics, Osaka University, Toyonaka, Osaka 560-0043, Japan
14
RCNS, Tohoku University, Sendai 980-8578, Japan
15
Institute of Physics, Akademy of Science, CZ-182 21 Praha 8,
Czech Republic
Corresponding author: ejiri@rcnp.osaka-u.ac.jp
The MOON (Majorana/Mo Observatory Of Neutrinos) project
aims at studies of the Majorana nature of the neutrino (
) and
the -mass spectrum by spectroscopic experiments of
neutrino-less double beta decays (
) with the 
-mass sensitivity of 
–30 meV. The solid
scintillator option of the MOON detector is a super ensemble of
multi-layer modules, each being composed by PL scintillator plates
and position-sensitive detector planes with good overall energy
resolution of 
at the 
. Thin 
source films are interleaved
between the detector planes. High localization of the two 
tracks enables one to select true signals and reject BG ones. The
multi-layer structure of the detector makes it realistic to build a
compact ton-scale detector. MOON with detector 
source is used for studying decays from
, 82Se and other isotopes with large
. Real-time exclusive measurements of low energy
solar neutrinos can be made by observing inverse rays from
solar-ν captures of in delayed coincidence with the
subsequent β decay of 100Tc.
© EDP Sciences, Springer-Verlag, 2008
