We describe the design, construction and performance of a Ring Imaging Cherenkov Detector (RICH) constructed to identify charged particles in the CLEO experiment. Cherenkov radiation occurs in LiF crystals, both planar and ones with a novel ``sawtooth''-shaped exit surface. Photons in the wavelength interval 135--165 nm are detected using multi-wire chambers filled with a mixture of methane gas and triethylamine vapor. Excellent pion/kaon separation is demonstrated.
@article{arxiv.physics/0506132,
title = {The Cleo Rich Detector},
author = {M. Artuso and R. Ayad and K. Bukin and A. Efimov and C. Boulahouache and E. Dambasuren and S. Kopp and Ji Li and G. Majumder and N. Menaa and R. Mountain and S. Schuh and T. Skwarnicki and S. Stone and G. Viehhauser and J. C. Wang and T. E. Coan and V. Fadeyev and Y. Maravin and I. Volobouev and J. Ye and S. Anderson and Y. Kubota and A. Smith},
journal= {arXiv preprint arXiv:physics/0506132},
year = {2009}
}
Comments
75 pages, 57 figures, (updated July 26, 2005 to reflect reviewers comments), to be published in NIM A