Ice shielding in the large scale GENIUS experiment for double beta decay and dark matter search
H.V. Klapdor-Kleingrothaus1 - Yu.G. Zdesenko2
1 Max-Planck-Institut für Kernphysik, D-69029 Heidelberg, Germany
2 Institute for Nuclear Research, 252650 Kiev, Ukraine
Received: 30 July 1998 Communicated by B. Povh
We suggest here the use of ice as shielding material in the large scale GENIUS experiment for the ultimate sensitive double beta decay and dark matter search. The idea is to pack a working volume of several tons of liquid nitrogens, which contains the ``naked'' Ge detectors, inside an ice shielding. Very thin plastic foil would be used in order to prevent leakage of the liquid nitrogen. Due to the excellent advantages of ice shielding (high purity and low cost, self-supporting ability, thermo-isolation and optical properties, safety) this could be another possible way of realization of the GENIUS project.
29.40.Wk Solid-state detectors - 95.35.+d Dark matter (stellar, interstellar, galactic, and cosmological - 95.55.Vj Neutrino, muon, pion, and other elementary particle detectors; cosmic ray detectors