Electron diffusion and scintillation in xenon doped with hydrogen for high-pressure xenon time projection chamber

C. Tezuka, Nobuyuki Hasebe, S. Kobayashi, T. Igarashi, M. Mimura, T. Hosojima, M. N. Kobayashi, T. Doke, M. Miyajima, T. Miyach, H. Okada, E. Shibamura, K. N. Pushkin, S. E. Ulin

    研究成果: Conference contribution

    抄録

    High-pressure xenon time projection chamber (HPXe-TPC) is a sophisticated detector, which can determine not only an energy of gamma ray but also its arrival direction by using Compton scattering. Diffusion of electrons and scintillation yield in Xe and Xe+H 2 mixture have been investigated to realize a HPXe-TPC. The transverse characteristic energy of electrons in Xe+H 2 mixture (H 2 0.44%) was reduced to about 40% against that of pure Xe at 1.0 MPa. Scintillation yields by alpha-particles ( 241Am) in Xe+H 2 mixture (H 2 0.23-5.7%) at 2.6 MPa were obtained as a function of E/N. The scintillation yields in Xe+H 2 mixture at 2.6 MPa and at E/N =0.3×10 -17Vcm 2 were luminous enough to generate a trigger signal of a HPXe-TPC. It is found that doping hydrogen into xenon is effective to prevent the degradation of angular resolution of a HPXe-TPC.

    本文言語English
    ホスト出版物のタイトルIEEE Nuclear Science Symposium Conference Record
    編集者J.A. Seibert
    ページ1157-1159
    ページ数3
    2
    出版ステータスPublished - 2004
    イベント2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors - Rome, Italy
    継続期間: 2004 10 162004 10 22

    Other

    Other2004 Nuclear Science Symposium, Medical Imaging Conference, Symposium on Nuclear Power Systems and the 14th International Workshop on Room Temperature Semiconductor X- and Gamma- Ray Detectors
    CountryItaly
    CityRome
    Period04/10/1604/10/22

    ASJC Scopus subject areas

    • Computer Vision and Pattern Recognition
    • Industrial and Manufacturing Engineering

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