A large area microgap chamber with two-dimensional read-out
- INFN, Pisa (Italy)
- INFN, Genova (Italy)
- CERN, Geneva (Switzerland)
A 10x10 cm{sup 2} MicroGap Chamber with a small stereo angle read-out has been developed for the inner tracking system of CMS. The anode strips are 9 {micro}m wide with a pitch of 200 {micro}m. The sampling pitch of the back cathode is 400 {micro}m at a stereo angle of 50 mrad. Both coordinates are read-out from the same side of the detector substrate. Measurements of gain stability, fraction of induced charge on the back electrode, uniformity of response along the strip and rate capability have been performed in laboratory, using X-ray sources. Detection efficiency, spatial resolution, charge and space correlation have been measured with minimum ionizing particle beams at CERN. Due to the good space and time resolution, high rate capability, 2-D capability and considerable flexibility, this device seems very well suited for the instrumentation of tracking systems. It fulfills almost all the stringent requirements of the next generation of experiments which are being designed for the new high-energy, high luminosity accelerators (LHC and HERA).
- OSTI ID:
- 277645
- Report Number(s):
- CONF-951073-; ISSN 0018-9499; TRN: 96:018098
- Journal Information:
- IEEE Transactions on Nuclear Science, Vol. 43, Issue 3Pt2; Conference: IEEE nuclear science symposium and medical imaging conference, San Francisco, CA (United States), 21-28 Oct 1995; Other Information: PBD: Jun 1996
- Country of Publication:
- United States
- Language:
- English
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