Absorption of scintillation light in a 100 l liquid xenon γ-ray detector and expected detector performance

A. Baldini, C. Bemporad, F. Cei, T. Doke, M. Grassi, A. A. Grebenuk, D. N. Grigoriev, T. Haruyama, K. Kasami, J. Kikuchi, A. Maki, T. Mashimo, S. Mihara, T. Mitsuhashi, T. Mori, D. Nicolò, H. Nishiguchi, W. Ootani, K. Ozone, A. PapaR. Pazzi, S. Ritt, R. Sawada, F. Sergiampietri, G. Signorelli, S. Suzuki, K. Terasawa, M. Yamashita, S. Yamashita, T. Yoshimura, Yu Yuri

研究成果: Article査読

76 被引用数 (Scopus)

抄録

An 800 l liquid xenon scintillation γ-ray detector is being developed for the MEG experiment which will search for μ+→e+γ decay at the Paul Scherrer Institut. Absorption of scintillation light of xenon by impurities might possibly limit the performance of such a detector. We used a 100 l prototype with an active volume of 372×372×496mm3 to study the scintillation light absorption. We have developed a method to evaluate the light absorption, separately from elastic scattering of light, by measuring cosmic rays and α sources. By using a suitable purification technique, an absorption length longer than 100 cm has been achieved. The effects of the light absorption on the energy resolution are estimated by Monte Carlo simulation.

本文言語English
ページ(範囲)753-764
ページ数12
ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
545
3
DOI
出版ステータスPublished - 2005 6 21
外部発表はい

ASJC Scopus subject areas

  • 核物理学および高エネルギー物理学
  • 器械工学

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