Multichannel Cherenkov counter for hyperon detection

A new design of the multichannel Cherenkov counter for recording Cherenkov radiation rings to detect hyperons in the particle channel of high intesity with wide pulse and angular beam spread is described. Experimental results obtained, when studying the real particle beam counter, confirm reliability and stability of counter characteristics. Rate resolution obtained with the given beam equals Δβ/β=(1.5-1.8)x10-5. The counter has a compensator of radiator dispersion and changing step geometry in the radial direction for a PEM, that makes it possible to use the counter for particle recording in beams of high intensity with energies of hundred GeV. Estimations show that at 20 m focusing distance of the spherical mirror the rate resolution is Δβ/β=(1.5-2.0)x10-7. In this case resolutions are divided into π- and K-mesons upto 800 GeV energy, K-mesons and protons - upto 1400 GeV. By such a counter one can simultaneously record all particles, to determine their pulse and pulse and angular spread