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 produced 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 experiment using the 1.22-GeV/c electron beam at SPring-8, we determined the 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.
Original language | English |
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Article number | 2344037 |
Pages (from-to) | 2601-2607 |
Number of pages | 7 |
Journal | IEEE Transactions on Nuclear Science |
Volume | 61 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2014 Oct 1 |
Keywords
- Fused quartz
- Position-sensitive photomultiplier
- Ring-image cherenkov counter
- TOP counter
- Time-of-propagation
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Nuclear Energy and Engineering
- Electrical and Electronic Engineering