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Massive liquid Ar and Xe detectors for direct Dark Matter searches.

Ovchinnikov, B M*; Ovchinnikov, Y B; Parusov, V V* (2012) Massive liquid Ar and Xe detectors for direct Dark Matter searches. JETP Lett., 96 (3). pp. 149-152.

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Abstract

A novel experiment for direct search for Dark Matter with liquid argon double-phase chamber with a mass of liquid Ar up to several hundred tons is proposed. To suppress the "beta", "gamma" and n_0 backgrounds, the comparison of scintillation and ionization signals for every event is suggested. The addition in liquid Ar of photosensitive Ge(CH3)4 or C2H4 and suppression of triplet component of scintillation signals ensures the detection of scintillation signals with high efficiency and provides a complete suppression of the electron background. For the detection of photoelectrons and ionization electrons, highly stable and reliable GEM detectors must be used.

Item Type: Article
Subjects: Time and Frequency
Time and Frequency > Microwave Frequency Standards
Identification number/DOI: 10.1134/S0021364012150076
Last Modified: 02 Feb 2018 13:14
URI: http://eprintspublications.npl.co.uk/id/eprint/5612

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