Intensity and time profile of recombination luminescence produced by an α -particle in dense xenon gas

M. Mimura*, S. Kobayashi, T. Ishikawa, M. Miyajima, Nobuyuki Hasebe

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)


    The time profile of recombination luminescence of dense xenon gas irradiated by an α -particle was absolutely measured in the density range of 0.027 - 0.112 g / cm3 with the aim to investigate the intensities of recombination luminescence at zero electric field. It was found that the number of scintillation photons due to the recombination luminescence increases with xenon density up to around 0.05 g / cm3, and then becomes nearly constant (= 2.32 × 105 photons for an α -particle with 5.49 MeV). The probability of recombination between electrons and ions at zero electric field is about 88% in the density range of 0.05 - 0.112 g / cm3. It was also found that the percentage of slow component (∼ sub-milliseconds) in the recombination luminescence decreases with density from 73% to 33% in the density range from 0.027 to 0.112 g / cm3.

    Original languageEnglish
    Pages (from-to)106-111
    Number of pages6
    JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
    Issue number1
    Publication statusPublished - 2010 Jan 21


    • High-density xenon
    • Recombination luminescence
    • Recombination probability

    ASJC Scopus subject areas

    • Instrumentation
    • Nuclear and High Energy Physics


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