Time resolution of a 1-inch cylindrical CeBr{sub 3} crystal at {sup 60}Co energies
- Grupo de Fisica Nuclear, Universidad Complutense, Madrid (Spain)
- 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, Vol. 1541, Issue 1; Conference: La Rabida 2012 international scientific meeting on nuclear physics: Basic concepts in nuclear physics: Theory, experiments, and applications, La Rabida (Spain), 9-13 Sep 2013; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
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