Author/Authors :
Chujo، نويسنده , , Tatsuya and Enosawa، نويسنده , , Kazuhiko and Higuchi، نويسنده , , Riko and Kanoh، نويسنده , , Kenji and Kurata، نويسنده , , Mizuki and Kurita، نويسنده , , Kazuyoshi and Miake، نويسنده , , Yasuo and Miyamoto، نويسنده , , Yuko and Nishimura، نويسنده , , Shunji and Okuma، نويسنده , , Yasuo and Sato، نويسنده , , Susumu and Yokota، نويسنده , , Yukio and Yagi، نويسنده , , Kohsuke، نويسنده ,
Abstract :
We constructed gas a Cherenkov beam counter for a lead beam to obtain start signals of time of fight measurements for relativistic heavy ion experiments in WA98 at CERN-SPS. The intrinsic timing resolution of the gas Cherenkov counter was found to be ≤ 30 ps at a beam intensity up to 3 × 105 ions/s and the charge resolution (ΔZZ) was 2.0% for lead ions of 160 GeV/c per nucleon. This counter has been successfully operated for more than 112 month of heavy ion run in 1995.
