The Forward Time Projection Chamber (FTPC) in STAR

Ackermann, K. H.; Bieser, F.; Brady, F. P.; Cebra, D.; Draper, J. E.; Eckardt, V.; Eggert, T.; Fessler, H.; Foley, K. J.; Ghazikhanian, V.; Hallman, T. J.; Heffner, M.; Huemmler, H.; Klay, J.; Klein, S. R.; Lebedev, A.; LeVine, M. J.; Ljubicic, T.; Curto, G. Lo; Longacre, R. S.; Oldenburg, M.; Ritter, HG.; Romero, J. L.; Schmitz, N.; Schuettauf, A.; Seyboth, J.; Seyboth, P.; Vidal, M.; Whitten Jr., C.; Yamamoto, E.

The Forward Time Projection Chamber (FTPC) in STAR

Authors

Description

Two cylindrical forward TPC detectors are described which were constructed to extend the phase space coverage of the STAR experiment to the region 2.5 < |η| < 4.0. For optimal use of the available space and in order to cope with the high track density of central Au+Au collisions at RHIC, a novel design was developed using radial drift in a low diffusion gas. From prototype measurements a 2-track resolution of 1-2 mm is expected.
10 pages, including 9 figures and 1 table; to appear in a special NIM volume dedicated to the accelerator and detectors at RHIC