Journal
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
Volume 927, Issue -, Pages 330-342Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2019.02.029
Keywords
GLUEX; Multi-pixel photon counter; Plastic scintillator; Silicon photomultiplier
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Funding
- Department of Energy [DE-FG02-99ER41065, DE-SC00-13620]
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-AC05-06OR23177]
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The design, simulation, fabrication, calibration, and performance of the GLUEX Start Counter detector are described. The Start Counter was designed to operate at integrated rates of up to 9 MHz with a timing resolution in the range of 500 to 825 ps (FWHM). The Start Counter provides excellent solid angle coverage, a high degree of segmentation for background rejection, and can be utilized in the level 1 trigger for the experiment. It consists of a cylindrical array of 30 thin scintillators with pointed ends that bend towards the beam line at the downstream end. Magnetic field insensitive silicon photomultiplier detectors were used as the light sensors.
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