Prototype studies of a fast RICH detector with a CsI photocathode

C. Lu, Z. Cheng, Daniel Robert Marlow, K. T. McDonald, E. J. Prebys, I. H. Stairs, R. L. Wixted, I. Adachi, R. Itoh, T. Sumiyoshi, N. S. Lockyer, J. E. Millan

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Abstract

A prototype fast RICH detector with a CsI photocathode coupled to a wire chamber filled with atmospheric pressure ethane has been studied in a 3.5 GeV/c π - beam. Using a 1 cm thick C 6 F 14 radiator, 8.5 photoelectrons per ring were detected. Measurements were made of the CsI quantum efficiency, photoelectron position resolution, and Cherenkov ring radius resolution. UV photon feedback appears to have degraded the resolution of the detector. Techniques to improve the photon detection efficiency and reduce backgrounds are discussed.

Original languageEnglish (US)
Pages (from-to)155-161
Number of pages7
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume371
Issue number1-2
DOIs
StatePublished - Mar 1 1996

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

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    Lu, C., Cheng, Z., Marlow, D. R., McDonald, K. T., Prebys, E. J., Stairs, I. H., Wixted, R. L., Adachi, I., Itoh, R., Sumiyoshi, T., Lockyer, N. S., & Millan, J. E. (1996). Prototype studies of a fast RICH detector with a CsI photocathode. Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 371(1-2), 155-161. https://doi.org/10.1016/0168-9002(95)01150-1