Time resolution of a 1-inch cylindrical CeBr{sub 3} crystal at {sup 60}Co energies

Journal Article · Mon Jun 10 04:00:00 EDT 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4810844· OSTI ID:22118602

Vedia, V.; Fraile, L. M.; Olaizola, B.; Paziy, V.; Picado, E.; Udias, J. M. ^[1]; Mach, H. ^[2]

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1. Grupo de Fisica Nuclear, Universidad Complutense, Madrid (Spain)
2. Grupo de Fisica Nuclear, Universidad Complutense, Madrid, Spain and Medical and Scientific Time Imaging Consulting, Nykoeping (Sweden)

We have measured time resolutions of a cylindrical CeBr{sub 3} scintillator of 1-inch in height and 1-inch in diameter coupled to two different fast photomultiplier tubes, Hamamatsu R9779 and Photonis XP20D0, as a function of applied high voltages and different settings of a Constant Fraction Discriminator ORTEC 935. The time resolution was measured using a time-delayed coincidence set-up involving a fast reference detector. The best result of 119(2) ps at {sup 60}Co energies was obtained for the CeBr{sub 3} crystal coupled to the Hamamatsu PMT. This result is comparable to the resolution of 107 ps reported for a LaBr{sub 3}(Ce) crystal of the same size. For the coupling of the CeBr{sub 3} scintillator to the Photonis PMT we got the time resolution of 146(2) ps.

• OSTI ID: 22118602
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1541; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CERIUM BROMIDES
COBALT 60
COMPARATIVE EVALUATIONS
CRYSTALS
CYLINDRICAL CONFIGURATION
DISCRIMINATORS
ELECTRIC POTENTIAL
GAMMA DETECTION
LANTHANUM BROMIDES
MEV RANGE 01-10
PHOTOMULTIPLIERS
READOUT SYSTEMS
SOLID SCINTILLATION DETECTORS
TIME DELAY
TIME RESOLUTION