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
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.