PHOTOSTIMULATED LUMINESCENCE IN CAS-EU,SM PHOSPHOR CERAMICS INDUCED BY EXCITATION WITH IONIZING-RADIATION

Authors
NANTO H IKEDA M KADOTA M NISHISHITA J NASU S DOUGUCHI Y
Citation
H. Nanto et al., PHOTOSTIMULATED LUMINESCENCE IN CAS-EU,SM PHOSPHOR CERAMICS INDUCED BY EXCITATION WITH IONIZING-RADIATION, Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms, 116(1-4), 1996, pp. 262-264
Citations number
6
Categorie Soggetti
Physics, Nuclear","Nuclear Sciences & Tecnology","Instument & Instrumentation
Journal title
Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms → ACNP
ISSN journal
0168583X
Volume
116
Issue
1-4
Year of publication
1996
Pages
262 - 264
Database
ISI
SICI code
0168-583X(1996)116:1-4<262:PLICPC>2.0.ZU;2-Y
Abstract
Intense photostimulated luminescence (PSL) with a peak at about 650 nm is observed in europium and samarium co-doped calcium sulfide (CaS:Eu ,Sm) phosphor ceramics by excitation with ionizing radiation such as X -rays and UV-rays. The PSL intensity is increased by increasing the X- ray or W-ray dose, indicating that CaS:Eu,Sm phosphor is a useful mate rial for two-dimensional X-ray or W-ray imaging sensor utilizing PSL. The results obtained are consistent with the proposed emission mechani sm of the 650 nm PSL, based on the recombination of electrons released from Sm2+ ions as electron traps with Eu3+ ions.