Author/Authors :
Barnyakov، نويسنده , , A.Yu. and Barnyakov، نويسنده , , M.Yu. and Beloborodov، نويسنده , , K.I. and Bobrovnikov، نويسنده , , V.S. and Buzykaev، نويسنده , , A.R. and Danilyuk، نويسنده , , A.F. and Golubev، نويسنده , , V.B. 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 Serednyakov، نويسنده , , S.I.، نويسنده ,
Abstract :
Our group produces silica aerogels with refractive indices of 1.006–1.13 with good optical transparency. The particle identification systems for the KEDR and the SND detectors based on threshold aerogel counters are described. Cosmic test results for the SND counters are presented. The possibility of employing a RICH with a sodium fluoride crystal radiator for π / K separation up to 5 GeV / c momentum is explored. The combined NaF-aerogel radiator is proposed to decrease the minimum working momentum of the RICH below the Cherenkov threshold in aerogel.
Keywords :
aerogel , Sodium fluoride , Particle identification , Ring imaging , Cherenkov counter
