Tracking with the Pep-4 Tpca
نویسنده
چکیده
The TPC has been tested with cosmic rays in July and November, 1981. It is now installed at IR2 at PEP and has been operating in 14 GeV e+ebeams for about a week. Preliminary analysis of the cosmic ray data yields spatial resolutions of axY = 260 !J and ox = 650 p, at a pressure of 8.6 atm. Results are also reported at 4.0 and 1.5 atm. The operation with e+ebeams is good. No problems with positive ions feedback in the drift volume have been observed, so far. Events with up to 18 tracks have been reconstructed on line.
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