Beamtest of Non-irradiated and Irradiated ATLAS SCT Microstrip Modules at KEK

نویسندگان

  • Y. Unno
  • Y. Iwata
  • Y. Kato
  • C. Ketterer
  • H. Kobayashi
  • T. Kohriki
  • T. Kondo
  • T. Koshino
  • J. Ludwig
  • T. Masuda
  • G. Moorhead
  • I. Nakano
  • K. Norimatsu
  • T. Ohsugi
  • K. Runge
  • S. Shinma
  • R. Takashima
  • R. Tanaka
  • N. Tanimoto
  • S. Terada
  • N. Ujiie
  • M. Vos
  • K. Yamanaka
  • T. Yamashita
چکیده

-Non-irradiated and irradiated ATLAS SCT barrel and endcap modules have been beamtested with 4 GeV/c pions. Pulse shapes confirmed the peaking time of the amplifier to be 22 ns with slight deterioration in the irradiated modules. Median charges saturated around 3.8 fC both in the non-irradiated and irradiated modules. Signal/Noise ratios, using the noise estimates from the in-situ calibration, were >16 in the non-irradiated (>150 V), and >10 in the irradiated (>300 V) barrel modules. No excess common-mode noise was observed.

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تاریخ انتشار 2002