Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8180250 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2013 | 8 Pages |
Abstract
We report on the time response of a novel inorganic scintillator, CeBr3. The measurements were performed using a cylindrical crystal of 1-in. in height and 1-in. in diameter at 22Na and 60Co photon energies. The time response was measured against a fast reference BaF2 detector. Hamamatsu R9779 and Photonis XP20D0 fast photomultipliers (PMTs) were used. The PMT bias voltages and Constant Fraction Discriminator settings were optimized with respect to the timing resolution. The Full Width at Half Maximum (FWHM) time resolution for an individual CeBr3 crystal coupled to Hamamatsu PMT is found here to be as low as 119Â ps at 60Co energies, which is comparable to the resolution of 107Â ps reported for LaBr3(Ce). For 511Â keV photons the measured FWHM time resolution for CeBr3 coupled to the Hamamatsu PMT is 164Â ps.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
L.M. Fraile, H. Mach, V. Vedia, B. Olaizola, V. Paziy, E. Picado, J.M. UdÃas,