Measurement of electron drift velocities in the mixture of Xe and He for a new high-pressure Xe gamma-ray detector

Shingo Kobayashi*, Valery V. Dmitrenko, Tadayoshi Doke, Victor M. Grachev, Nobuyuki Hasebe, Tsutomu Igarashi, Takashi Miyachi, Hiroyuki Okada, Eido Shibamura, Masatoshi Takenouchi, Sergey E. Ulin, Konstantin F. Vlasik

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)

    Abstract

    Drift velocities of electrons in a mixture of Xe (20 atm)-He (3 atm) were measured using a cylindrical high-pressure xenon chamber. The drift velocities were found to be greater than 3 × 105 cm/s above the reduced electric field of 2.0 × 10-18 V·cm2 at room temperature, which are close to those in Xe-H2 (0.3%). The mixture of He gas into high-pressure xenon improved the resolving time of detectors because it increased the electron drift velocities. This implies that a high-pressure xenon chamber mixed with 3He instead of He gas operates as a gamma-ray detector sensitive to thermal neutrons.

    Original languageEnglish
    Pages (from-to)333-334
    Number of pages2
    JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
    Volume42
    Issue number1
    Publication statusPublished - 2003 Jan

    Keywords

    • Cylindrical chamber
    • Electron drift velocity
    • Gamma-ray
    • Helium
    • Helium 3
    • High-pressure xenon detector
    • Neutron
    • Xenon

    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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