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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

hep-exarXiv:hep-ex/9811001

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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