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ISSN - 01689002, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1992, vol. 315, p. 517-520

The aerogel Cherenkov counters with wavelength shifters and phototubes

Onuchin A., Shamov A., Skovpen Yu, Vorobiov A., Danilyuk A., Gorodetskaya T., Kuznetsov V.

Several schemes of aerogel Cherenkov counters for e+e--experiments in the T-region are discussed. The results of measurements on the prototype counter with diffusive light collection on the R2490-01 phototube are reported. According to the calculations, the use of wavelength shifting light guides for the light collection allows one to reduce the required number of photomultipliers by a factor 5-10 in comparison with direct light collection on the phototubes. © 1992.