Cosmic ray tests of a GEM-based TPC prototype operated in ArCF 4isobutane gas mixtures

M. Kobayashi, R. Yonamine, T. Tomioka, A. Aoza, H. Bito, K. Fujii, T. Higashi, K. Hiramatsu, K. Ikematsu, A. Ishikawa, Y. Kato, H. Kuroiwa, T. Matsuda, O. Nitoh, H. Ohta, K. Sakai, R. D. Settles, A. Sugiyama, H. Tsuji, T. WatanabeH. Yamaoka, T. Yazu

研究成果: Article査読

14 被引用数 (Scopus)


Argon with an admixture of CF4 is expected to be a good candidate for the gas mixture to be used for a time projection chamber (TPC) in the future linear collider experiment because of its small transverse diffusion of drift electrons especially under a strong magnetic field. In order to confirm the superiority of this gas mixture over conventional TPC gases we carried out cosmic ray tests using a GEM-based TPC operated mostly in ArCF 4isobutane mixtures under 01 T axial magnetic fields. The measured gas properties such as gas gain and transverse diffusion constant as well as the observed spatial resolution are presented.

ジャーナルNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
出版ステータスPublished - 2011 6 11

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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