Author/Authors :
Barnyakov، نويسنده , , A.Yu. and Barnyakov، نويسنده , , M.Yu. and Bobrovnikov، نويسنده , , V.S. and Buzykaev، نويسنده , , A.R. and Danilyuk، نويسنده , , A.F. and Gulevich، نويسنده , , V.V. and Kirillov، نويسنده , , V.L. and Kononov، نويسنده , , S.A. and Kravchenko، نويسنده , , E.A. and Onuchin، نويسنده , , A.P. and Porosev، نويسنده , , V.V.، نويسنده ,
Abstract :
The method of improvement of Cherenkov angle resolution in RICH detectors using ‘focusing’ aerogel radiators (FARICH) is under investigation. The ‘focusing’ three-layer aerogel radiator was investigated using a digital radiographic device. The Monte Carlo calculations of velocity resolution based on measured variations of the refractive index in aerogel tile are presented. With the observed variations, π - and K-mesons can be separated up to 8.4 GeV/c, π - and μ -mesons can be separated up to 1.6 GeV / c .
died the use of sodium fluoride radiator in a RICH detector. NaF radiator extends the working momentum region for the π / K identification down to 0.6 GeV/c. It has been shown that a RICH detector with NaF radiator can achieve a competitive velocity resolution up to 5 GeV/c as compared to single-layer aerogel RICH.
