| Autor: |
Alekhin, M. S., de Haas, J. T. M., Khodyuk, I. V., Krämer, K. W., Menge, P. R., Ouspenski, V., Dorenbos, P. |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 4/22/2013, Vol. 102 Issue 16, p161915-161915-4, 1p, 6 Graphs |
| Abstrakt: |
Commercially available LaBr3:5% Ce3+ scintillators show with photomultiplier tube readout about 2.7% energy resolution for the detection of 662 keV γ-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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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