Gamma Ray Spectroscopy with Scintillation Light in Liquid Xenon

K. Ni; E. Aprile; K. L. Giboni; P. Majewski; M. Yamashita

doi:10.1088/1748-0221/1/09/P09004

Gamma Ray Spectroscopy with Scintillation Light in Liquid Xenon

Instrumentation and Detectors 2008-11-26 v2 Astrophysics Nuclear Experiment

Authors: K. Ni , E. Aprile , K. L. Giboni , P. Majewski , M. Yamashita

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Abstract

Scintillation light from gamma ray irradiation in liquid xenon is detected by two Hamamatsu R9288 photomultiplier tubes (PMTs) immersed in the liquid. UV light reflector material, PTFE, is used to optimize the light collection efficiency. The detector gives a high light yield of 6 photoelectron per keV (pe/keV), which allows efficient detection of the 122 keV gamma-ray line from Co-57, with a measured energy resolution of (8.8+/-0.6)% (sigma). The best achievable energy resolution, by removing the instrumental fluctuations, from liquid xenon scintillation light is estimated to be around 6-8% (sigma) for gamma-ray with energy between 662 keV and 122 keV.

Keywords

liquid xenon detector liquid argon detectors silicon photomultipliers

Cite

@article{arxiv.physics/0608034,
  title  = {Gamma Ray Spectroscopy with Scintillation Light in Liquid Xenon},
  author = {K. Ni and E. Aprile and K. L. Giboni and P. Majewski and M. Yamashita},
  journal= {arXiv preprint arXiv:physics/0608034},
  year   = {2008}
}

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