Title :
Study of RICH Counter with Silica Aerogel Radiator
Author :
A. Kuratani;I. Adachi;K. Fujita;T. Fukushima;A. Gorisek;D. Hayashi;T. Iijima;K. Ikado;M. Iwabuchi;H. Kawai;S. Korpar;Y. Kozakai;P. Krizan;T. Matsumoto;Y. Mazuka;T. Nakagawa;S. Nishida;S. Ogawa;R. Pestotnik;T. Seki;T. Sumiyoshi;M. Tabata;Y. Unno
Author_Institution :
Department of Physics, Chiba Univ., Chiba, Japan. E-mail address: kuratani@hepburn.s.chiba-u.ac.jp
Abstract :
A proximity focusing RICH using aerogel as the Cherenkov radiator is being developed as a new particle identification device for the Belle detector upgrade. A prototype counter was constructed with recently produced aerogel samples, arranged in a focusing configuration, and a test beam experiment was carried out in order to evaluate the performance of the apparatus. With this device we have achieved a pi-K separation that exceeded 5sigma at 4 GeV/c, with ap9 detected photoelectrons per track. We have also studied the influence of various parameters like radiator refractive index combinations on the performance of the apparatus.
Keywords :
"Counting circuits","Silicon compounds","Detectors","Physics","Testing","Prototypes","Refractive index","Mesons","Solvents","Tiles"
Conference_Titel :
Nuclear Science Symposium Conference Record, 2006. IEEE
Print_ISBN :
1-4244-0560-2
DOI :
10.1109/NSSMIC.2006.356201
