Author/Authors :
Oda، نويسنده , , S.X. and Hamagaki، نويسنده , , H. and Ozawa، نويسنده , , K. and Inuzuka، نويسنده , , M. and Sakaguchi، نويسنده , , T. and Isobe، نويسنده , , T. and Gunji، نويسنده , , T. and Morino، نويسنده , , Y. David Saito، نويسنده , , S. and Yamaguchi، نويسنده , , Y.L. and Sawada، نويسنده , , S. and Yokkaichi، نويسنده , , S.، نويسنده ,
Abstract :
We developed a prototype time projection chamber using gas electron multipliers (GEM–TPC) for high energy heavy ion collision experiments. To investigate its performance, we conducted a beam test with three kinds of gases (Ar(90%)–CH4(10%), Ar(70%)–C2H6(30%) and CF4). Detection efficiency of 99%, and spatial resolution of 79 μ m in the pad-row direction and 313 μ m in the drift direction were achieved. The test results show that the GEM–TPC meets the requirements for high energy heavy ion collision experiments. The configuration and performance of the GEM–TPC are described.
