Development of a Time Projection Chamber Using Gas Electron Multipliers (GEM-TPC)

Oda, S. X.; Hamagaki, H.; Ozawa, K.; Inuzuka, M.; Sakaguchi, T.; Isobe, T.; Gunji, T.; Morino, Y.; Saito, S.; Yamaguchi, Y. L.; Sawada, S.; Yokkaichi, S.

Development of a Time Projection Chamber Using Gas Electron Multipliers (GEM-TPC)

Authors

Description

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 3 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.
18 pages, 12 figures, published online in Nucl. Instr. and Meth. A