Cherenkov detector for proton flux measurement for UA9 project

A report about the development of a device called Cherenkov detector for proton flux measurement is presented. This device is going to be installed first in the Super Proton Synchrotron and later at Large Hadron Collider collimation area to monitor of the secondary beam, produced by a bent crystal inserted in the proton halo. By measuring the number of Cherenkov light produced by the protons in the quartz radiator we expect less the 10% precision in particle counting, for around 100 incoming protons. Geant4 based simulation and first tests with 446 MeV electron beam are discussed.