Photoionization of dopants in liquid argon-xenon mixture

Y. Hasegawa, H. Yuta, F. Suekane, T. Kondo, Y. Unno, H. Iwasaki, Y. Sakai, Y. Watanabe, T. Tanimori, K. Kaneyuki, L. Soso, T. Doke, A. Hitachi, T. Ito, K. Hasuike, K. Masuda, E. Shibamura, T. Takahashi

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The photoionization quantum efficiency φ of trimethylamine (TMA) in liquid Ar doped with Xe (0.01-0.4%) has been measured and compared with the value obtained in liquid Xe. TMA is excited by vacuum ultraviolet photons originating from Xe2* produced by α-particles. Doping liquid Ar with Xe causes a wavelength shift from emission of Ar2* to Xe2*. The value obtained in liquid Ar doped with Xe is <0.2 which is much smaller than the value of 0.8 in liquid Xe. The difference may be attributed to a strong cage effect in liquid Xe.

Original languageEnglish
Pages (from-to)57-59
Number of pages3
JournalNuclear Inst. and Methods in Physics Research, A
Issue number1
Publication statusPublished - 1993 Mar 20

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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