/ Instrumentation


Time-of-Propagation Counter for the LEPS


Yoon, C.J. (Osaka U., Res. Ctr. Nucl. Phys.) ; Hamano, H. (Osaka U., Res. Ctr. Nucl. Phys.) ; Hotta, T. (Osaka U., Res. Ctr. Nucl. Phys.) ; Kasamatsu, Y. (Osaka U., Res. Ctr. Nucl. Phys.) ; Morino, Y. (Osaka U., Res. Ctr. Nucl. Phys.) ; Nakatsugawa, Y. (Osaka U., Res. Ctr. Nucl. Phys.) ; Nakano, T. (Osaka U., Res. Ctr. Nucl. Phys.) ; Nam, T. (Osaka U., Res. Ctr. Nucl. Phys.) ; Noumi, H. (Osaka U., Res. Ctr. Nucl. Phys.) ; Oka, M. (Osaka U., Res. Ctr. Nucl. Phys.) ; Ryu, S.Y. (Osaka U., Res. Ctr. Nucl. Phys.) ; Yosoi, M. (Osaka U., Res. Ctr. Nucl. Phys.) ; Matsuoka, K. (Nagoya U.) ; Kato, Y. (Nagoya U.) ; Arita, Y. (Nagoya U.) ; Inami, K. (Nagoya U.) ; Suzuki, K. (Nagoya U.) ; Hyakawa, T. (Nagoya U.) ; Iijima, T. (Nagoya U.) ; Maeshima, R. (Nagoya U.) ; Hirose, S. (Nagoya U.) ; Horii, Y. (Nagoya U.) ; Niiyama, M. (Kyoto U.) ; Nozawa, Y. (Kyoto U.) ; Muramatsu, N. (Tohoku U.) ; Strokovsky, E.A. (Dubna, JINR) ; Uchida, M. (Tokyo Inst. Tech.) ; Barrett, M. (Hawaii U.) ; Browder, T. (Hawaii U.) ; Jones, M. (Hawaii U.) ; Korpar, S. (Stefan Inst., Ljubljana)

Published in: IEEE Trans.Nucl.Sci.
Year: 2014
Vol.: 61    Num./Issue: 5
Page No: 2601-2607
Pages: 7
Year: 2014

Abstract: We have tested a time-of-propagation (TOP) counter, which is a ring-image Cherenkov counter utilizing the position and propagation time of the Cherenkov light produced by particles moving in a quartz radiator. Position-sensitive photomultipliers (PMTs) are attached to the end of the quartz bar to detect the pro- duced Cherenkov-ring image. The velocity of the charged particle was determined by comparing the time-of-propagation spectra of the Cherenkov light with the results of Monte Carlo simulation. From analysis of the test experimen tusingthe1.22-GeV/celectron beam at SPring-8, we determined t he velocity of the electron beam to be 1.001 with a resolution of 0.002. On the basis of this study, we suggest a full setup for the detector for separating pions and kaons in the momentum region from 1.5 to 2.0 GeV/c for a beam angle of less than 6 , by more than four standard deviations.

Total numbers of views: 1008
Numbers of unique views: 305
DOI: 10.1109/TNS.2014.2344037
 Record created 2014-12-01, last modified 2014-12-01



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