Bolometric direct dark matter search at the University of Tokyo

Makoto Minowa, Yutaka Ito, Wataru Ootani, Keiji Nishigaki, Yasuhiro Kishimoto, Takayuki Watanabe, Yoshizumi Inoue, Youiti Ootuka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A direct dark matter search experiment is now under preparation at the University of Tokyo. An array of LiF bolometers with a total mass of roughly one kilogram is to be used aiming at a direct detection of spin-dependently interacting supersymmetric neutralinos. A dedicated low-radioactivity dilution refrigerator for the bolometer has been constructed along with a small on-line helium requefier to help the detector operation in the underground laboratory where liquid helium supply is not always available. A long term test operation of a bolometer at the University of Tokyo proved the stability of the detector for more than 45 days. The detector will be installed in the Nokogiri-yama underground laboratory of the Institute for Cosmic Ray Research of the University of Tokyo. The laboratory is 200 m w.e. deep and located about 60 km to the south of Tokyo.

Original languageEnglish
Pages (from-to)314-317
Number of pages4
JournalNuclear Physics B - Proceedings Supplements
Volume51
Issue number2
DOIs
Publication statusPublished - 1996 Nov
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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