Journal
APPLIED SCIENCES-BASEL
Volume 13, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/app13053323
Keywords
scintillation; quaternary garnet; terbium; light yield; decay time; saturation
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GYAGG:Tb (Ce) scintillators were studied under intense 150 keV electron beam excitation. The Ce-doped material did not show saturation, while a moderate 30% drop of yield was observed in the Tb-doped sample at the highest excitation beam intensity. This provides a way to utilize Tb-doped scintillators for indirect beta-voltaic batteries.
GYAGG:Tb (Ce) scintillators have been confirmed to be promising sources of light emission when excited by an intense 150 keV electron beam. The saturation of the scintillation yield under such excitation conditions has been studied. To explain the results obtained, a model that considers the Auger quenching mechanism was used. The Ce-doped material did not show saturation, whereas a moderate 30% drop of the yield was measured in the Tb-doped sample at the highest excitation beam intensity similar to 1 A/cm(2). This put forward a way to exploit the Tb-doped scintillator for indirect beta-voltaic batteries.
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