Abstract
The CLEO collaboration is preparing a major upgrade of its present detector including a RICH detector for particle identification. This subdetector system follows the `proximity focussing' design and uses LiF crystal radiators and MWPCs filled with a CH4/TEA gas mixture as photon detector. Part of the radiator crystals will have the new `sawtooth' geometry. We have constructed two of the 30 detector modules and tested these together with the first planar and `sawtooth' radiator crystals in a muon halo beam at Fermilab. For the measurement of the Cherenkov angle we obtain a single photon measurement error of 13.5 mrad for the conventional planar radiator. With 14 detected photons we find a resolution per track of 4.5 mrad. In the first measurement ever of a `sawtooth' radiator we achieve a resolution of 11.8 mrad for single photons and 4.8 mrad per track for 12.3 detected photons with a reduced geometric acceptance. These results fulfill CLEO III requirements.
| Original language | English (US) |
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| Title of host publication | IEEE Nuclear Science Symposium & Medical Imaging Conference |
| Editors | O. Nalcioglu |
| Publisher | IEEE |
| Pages | 348-352 |
| Number of pages | 5 |
| Volume | 1 |
| State | Published - Dec 1 1997 |
| Event | Proceedings of the 1997 IEEE Nuclear Science Symposium - Albuquerque, NM, USA Duration: Nov 9 1997 → Nov 15 1997 |
Other
| Other | Proceedings of the 1997 IEEE Nuclear Science Symposium |
|---|---|
| City | Albuquerque, NM, USA |
| Period | 11/9/97 → 11/15/97 |