Studies on the drift properties and spatial resolution using a microMEGAS-equipped time projection chamber

Rosaio L. Reserva,Dennis C. Arogancia,Angelina M. Bacala, Khalil Boudjemline,Dan Burke,Paul Colas,Madhu Dixit,Arnaud Giganon,Ioannis Giomataris,Hermogenes C. Gooc Jr,Yukihiro Kato,Keisuke Fujii, Hiroyuki Fujishima, Masahiro Habu, Takatoshi Higashi, Makoto Kobayashi,Hirotoshi Kuroiwa,Vincent Lepeltier,Takeshi Matsuda,Osamu Nitoh,Kirsten Sachs,Ronald Dean Settles,Akira Sugiyama,Philippe Rosier, Sachio Matsushita, Keiichi Nakamura,Takashi Watanabe,Atsushi Yamaguchi,Hiroshi Yamaoka,Thomas Zerguerras

Pramana（2008）

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Abstract

R&D studies on the performance as well as on the gas properties of the microMEGAS-based time projection chamber with standard readout were carried out in June 2005 using 4 GeV/c pion beam in a magnetic field from 0 to 1 T at the proton synchrotron beam line at KEK, Japan. Analysis of the electron drift velocity, diffusion constant and point resolution of padrow measurement for MicroMEGAS TPC filled with 95% argon and 5% isobutane gas are presented. The underlying physical mechanism which determines the optimal TPC performance are briefly discussed. Preliminary measurements of gas properties and spatial resolution in close agreement with the analytical calculation and MAGBOLTZ simulation are summarized and presented in this paper.

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Key words

microMEGAS-based time projection chamber,micro-pattern gas avalanche,detector MAGBOLTZ simulation

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