| Autor: |
Shah, Kanai S., Glodo, Jaroslaw, Higgins, William, Van Loef, Edgar V. D., Moses, William W., Derenzo, Stephen E., Weber, Marvin J. |
| Předmět: |
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| Zdroj: |
IEEE Transactions on Nuclear Science; Dec2005 Part 2, Vol. 52 Issue 6, p3157-3159, 3p, 5 Graphs |
| Abstrakt: |
In this paper, we report on a new scintillator, cerium bromide (CeBr3), for gamma-ray spectroscopy. Crystals of this scintillator have been grown using Bridgman process. In this material Ce 3+ is an intrinsic constituent as well as a luminescence center for the scintillation process. Samples of CeBr3 showed high light output (~68000 photons/MeV) and fast decay constant (~17 ns). Furthermore, they exhibited excellent energy resolution for gamma-ray detection. For example, energy resolution of <4% full width at half maximum (FWHM) has been achieved using this scintillator for 662 keV photons (137Cs source) at room temperature. High timing resolution (<200 ps-FWHM) has been recorded with CeBr3-photomultiplier (PMT) and BaF2-PMT detectors operating in coincidence using 511 keV positron annihilation gamma-ray pairs [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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