Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...278l..31c&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 278, no. 2, p. L31-L34
Astronomy and Astrophysics
Astrophysics
6
Background Radiation, Bolometers, Cosmic Rays, Dark Matter, Radioactivity, Elastic Scattering, Monte Carlo Method, Neutrinos, Recoil Ions, Scintillation Counters, Semiconductor Devices
Scientific paper
As a first development of a bolometric dark matter detection experiment, preliminary radioactive background measurements, down to 3 keV, are performed using a 24 g sapphire crystal cooled at 55 mK. The experiment is operated in a deep underground laboratory (Laboratoire Souterrain de Modane) in order to eliminate the cosmic ray background. Due to the low energy threshold it is shown that, for low mass dark matter particles (less than or = 10 GeV/sq c), bolometers are potentially better than the conventional semi-conductor (Si, Ge) or scintillating (NaI) detectors.
Coron N.
Dambier Gérard
de Bellefon Alain
de Marcillac Pierre
Giraud-Heraud Yannick
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