期刊
APPLIED PHYSICS LETTERS
卷 102, 期 16, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4803440
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资金
- Dutch Technology Foundation (STW)
- Saint-Gobain Crystals, France
- European Community [226716]
Commercially available LaBr3:5% Ce3+ scintillators show with photomultiplier tube readout about 2.7% energy resolution for the detection of 662 keV gamma-rays. Here we will show that by co-doping LaBr3: Ce3+ with Sr2+ or Ca2+ the resolution is improved to 2.0%. Such an improvement is attributed to a strong reduction of the scintillation light losses that are due to radiationless recombination of free electrons and holes during the earliest stages (1-10 ps) inside the high free charge carrier density parts of the ionization track. (C) 2013 AIP Publishing LLC. [http://dx.doi.org/10.1063/1.4803440]
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