A Two-Phase Emission Liquid Xe Detector for Study of Low-Ionization Events at the Research Reactor IRT MEPhI

Author

Akimov, D.Yu. ; Alexandrov, I.S. ; Belov, V.A. ; Bolozdynya, A.I. ; Burenkov, A.A. ; Chepurnov, A.S. ; Danilov, M.V. ; Efremenko, Yu.V. ; Etenko, A.V. ; Gromov, M.B. ; Gulin, M.A. ; Ivakhin, S.V. ; Kaplin, V.A. ; Karelin, A.K. ; Khromov, A.V. ; Kirsanov,

Author_Institution

SSC RF Inst. for Theor. & Exp. Phys., Nat. Res. Center Kurchatov Inst., Moscow, Russia

Volume

62

Issue

1

fYear

2015

fDate

Feb. 2015

Firstpage

257

Lastpage

263

Abstract

A two-phase emission detector containing 5 kg of liquid Xe is installed at the horizontal experimental channel of the research nuclear reactor IRT MEPhI to measure the liquid Xe response to nuclei recoils with kinetic energies below 1 keV. Preliminary tests have demonstrated that ≥ 15 μs electron lifetime in liquid Xe and ~ 10 photoelectrons single ionization electron signal are achieved. These parameters are sufficient to detect and identify events at the single electron level.

Keywords

gas scintillation detectors; liquid scintillation detectors; xenon; Research Reactor IRT MEPhI; electron lifetime; horizontal experimental channel; kinetic energies; low-ionization events; photoelectrons; single electron level; single ionization electron signal; two-phase emission liquid Xe detector; Anodes; Detectors; Inductors; Ionization; Liquids; Nuclear measurements; Xenon; Electrons; emission detector; ionization yield; liquid Xe; neutrino coherent scattering;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2014.2381365

Filename

7027252