Eu-doped CsBr phosphor as a new optically-stimulable phosphor material for medical X-ray imaging sensor.

Abstract:

:CsBr phosphor ceramics doped with different luminescence centres such as In2O3, Eu2O3, EuCl3, SmCl3, TbCl3, GdCl3 or NdCl3 as the candidate for a new optically-stimulable phosphor for medical X-ray imaging sensor were prepared using a conventional ceramic fabrication process. It was found that X-ray-irradiated Eu-doped CsBr (CsBr:Eu) exhibited intense optically stimulated luminescence (OSL). The peak wavelength of the OSL emission and stimulation spectra of CsBr:Eu phosphor ceramic sample were 450 and 690 nm, respectively. The dependence of OSL properties on the conditions of preparation of phosphor ceramic samples, such as Eu concentration, sintering temperature and sintering time, were studied. The optimum preparation conditions were also studied. It was found that the OSL intensity of CsBr:Eu phosphor ceramics fabricated under optimum preparation conditions is higher than that of commercially available imaging plates using BaFBr:Eu.

journal_name

Radiat Prot Dosimetry

authors

Kurata N,Kubota N,Takei Y,Nanto H

doi

10.1093/rpd/nci515

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

398-401

issue

1-4

eissn

0144-8420

issn

1742-3406

pii

nci515

journal_volume

119

pub_type

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