Direct dark matter search program with bolometers at the University of Tokyo

Details Direct dark matter search program with bolometers at the University of Tokyo Direct dark matter search program with bolometers at the University of Tokyo

Nov 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993jltp...93..803m&link_type=abstract

Journal of Low Temperature Physics, Volume 93, Issue 3-4, pp. 803-808

Physics

5

14.80.Ly, 95.35.+D, 29.40.Ym

Scientific paper

Bolometers are being developed at the University of Tokyo aiming at a search for galactic dark matter. We have succeeded in constructing a small-sized bolometer with 2.8 gram of lithium fluoride crystal with an rms energy resolution of 3.8 ke V for 60-ke V γ rays. Both lithium and fluorine are expected to be suitable for the detection of possible particle dark matter with a spin-dependent interaction like supersymmetric neutralinos. Fabrication of Neutron Transmutation Doped (NTD) germanium is also in progress to make a number of thermistors with uniform sensitivities to be used for multi-module bolometers. When the development of a full-sized detector with a total mass of order one kilogram is completed, we plan to install it in the Kamioka underground laboratory.

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