Development of a Time Projection Chamber Using Gas Electron Multipliers (GEM-TPC)
arXiv:physics/0605233 · doi:10.1016/j.nima.2006.07.003
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 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