Suppression of afterglow in CsI:Tl by codoping with Eu2+—II: Theoretical model

Autor: Valeriy Gaysinskiy, A. Lempicki, D.S. Hamilton, C. Brecher, L.A. Kappers, E.E. Ovechkina, Jarek Glodo, Ralph H. Bartram
Rok vydání: 2006
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 558:458-467
ISSN: 0168-9002
DOI: 10.1016/j.nima.2005.11.051
Popis: The mechanism for afterglow suppression in codoped CsI:Tl,Eu reported in the preceding paper was investigated by combined radioluminescence and thermoluminescence experiments. Model rate equations informed by these experiments were employed to simulate afterglow. It was found that codoping with europium introduces deep electron traps, with room-temperature glow peaks, that effectively scavenge the electrons from shallow traps associated with thallium, thus suppressing afterglow in the time domain of tens of milliseconds.
Databáze: OpenAIRE