Title of article
Design and performance study of the TOP counter
Author/Authors
Matsuoka، نويسنده , , Kodai، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2013
Pages
4
From page
357
To page
360
Abstract
A novel RICH detector called TOP counter has been developed for particle identification in Belle II. It measures the time of propagation (TOP) of Cherenkov photons traveling in the quartz radiator with micro-channel-plate photomultiplier tubes (MCP-PMTs) with a precision of 50 ps. A prototype TOP counter was tested with the 1.2 GeV/c electron beam in the Laser Electron Photon beam line at SPring-8 (LEPS). The TOP distribution was obtained as expected after taking into account the dependence of the MCP-PMT quantum efficiency on light incidence angle and polarization. In this paper, the key features of the TOP counter design and the beam test results are presented.
Keywords
Polarization of Cherenkov light , Particle identification , Cherenkov detector , Quartz radiator , MCP-PMT
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Serial Year
2013
Journal title
Nuclear Instruments and Methods in Physics Research Section A
Record number
2195140
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