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arXiv:1505.02296 (physics)
[Submitted on 9 May 2015 (v1), last revised 20 Jan 2016 (this version, v2)]

Title:X-ray ionization yields and energy spectra in liquid argon

Authors:A. Bondar, A. Buzulutskov, A. Dolgov, L. Shekhtman, A. Sokolov
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Abstract:The main purpose of this work is to provide reference data on X-ray ionization yields and energy spectra in liquid Ar to the studies in the field of Cryogenic Avalanche Detectors (CRADs) for rare-event and other experiments, based on liquid Ar detectors. We present the results of two related researches. First, the X-ray recombination coefficients in the energy range of 10-1000 keV and ionization yields at different electric fields, between 0.6 and 2.3 kV/cm, are determined in liquid Ar based on the results of a dedicated experiment. Second, the energy spectra of pulsed X-rays in liquid Ar in the energy range of 15-40 keV, obtained in given experiments including that with the two-phase CRAD, are interpreted and compared to those calculated using a computer program, to correctly determine the absorbed X-ray energy. The X-ray recombination coefficients and ionization yields have for the first time been presented for liquid Ar in systematic way.
Comments: 13 pages, 9 figures, 3 tables. Submitted to NIM. 2nd version: substantially modified. New Fig. 7: summary of ionization yields in liquid Ar
Subjects: Instrumentation and Detectors (physics.ins-det)
Cite as: arXiv:1505.02296 [physics.ins-det]
  (or arXiv:1505.02296v2 [physics.ins-det] for this version)
  https://doi.org/10.48550/arXiv.1505.02296
Journal reference: Nucl. Instr. Meth. A 816 (2016) 119
Related DOI: https://doi.org/10.1016/j.nima.2016.02.010

Submission history

From: Alexei Buzulutskov [view email]
[v1] Sat, 9 May 2015 17:44:37 UTC (2,053 KB)
[v2] Wed, 20 Jan 2016 17:40:34 UTC (2,125 KB)
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