Temperature dependence of avalanche photodiodes for scintillating fiber readout

Journal Article · Mon Nov 09 00:00:00 EST 1998 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.56968· OSTI ID:21199282

Yoshida, T; Okusawa, T; Sasayama, Y; Tsuji, M ^[1]

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1. Department of Physics, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan)

We have evaluated the performance of avalanche photodiodes (APDs) as photosensors for scintillating-fiber charged particle tracking detectors, putting special emphasis on their temperature dependence. For this purpose, we built a prototype of a scintillating fiber hodoscope with 3HF scintillating fibers 0.5 mm in diameter. The fiber array structure was so designed that each APD could receive photons from two fibers along a particle trajectory penetrating the array. By cooling the APDs to -40 deg. C, we could achieve the signal-to-noise ratio larger than 25. The detection efficiency reached more than 98% with reducing the noise count rate to 0.5%.

• OSTI ID: 21199282
• Journal Information: AIP Conference Proceedings, Vol. 450, Issue 1; Conference: SCIFI97: 3. conference on scintillating and fiber detectors, Notre Dame, IN (United States), 2-6 Nov 1997; Other Information: DOI: 10.1063/1.56968; (c) 1998 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHARGED PARTICLES
COOLING
COUNTING RATES
EFFICIENCY
EVALUATION
NOISE
OPTICAL FIBERS
PARTICLE TRACKS
PERFORMANCE
PHOTODIODES
PHOTONS
RADIATION DETECTION
READOUT SYSTEMS
SIGNAL-TO-NOISE RATIO
SOLID SCINTILLATION DETECTORS
TEMPERATURE DEPENDENCE