The SELEX Phototube RICH Detector
J. Engelfried, I. Filimonov, J. Kilmer, A. Kozhevnikov, V. Kubarovsky, V. Molchanov, A. Nemitkin, E. Ramberg, V. Rud, L. Stutte
Abstract
In this article, construction, operation, and performance of the RICH detector of Fermilab experiment 781 (SELEX) are described. The detector utilizes a matrix of 2848 phototubes for the photocathode to detect Cherenkov photons generated in a 10m Neon radiator. For the central region an N0 of 104/cm, corresponding to 13.6 hits on a beta=1 ring, was obtained. The ring radius resolution measured is 1.6%.
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