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 μm in the pad-row direction and 313 μm 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.
@article{arxiv.physics/0605233,
title = {Development of a Time Projection Chamber Using Gas Electron Multipliers (GEM-TPC)},
author = {S. X. Oda and H. Hamagaki and K. Ozawa and M. Inuzuka and T. Sakaguchi and T. Isobe and T. Gunji and Y. Morino and S. Saito and Y. L. Yamaguchi and S. Sawada and S. Yokkaichi},
journal= {arXiv preprint arXiv:physics/0605233},
year = {2008}
}
Comments
18 pages, 12 figures, published online in Nucl. Instr. and Meth. A