Photostimulated luminescence from BaCl2:Eu2+ nanocrystals in lithium borate glasses following neutron irradiation

Journal article (2006)

Authors

G.A. Appleby

A. Edgar

G.V.M. Williams

A.J.J. Bos

Department

Radiation, Radionuclides and Reactors () (TU Delft)

DOI: https://doi.org/doi:10.1063/1.2335807

Thermoluminescence Nanostructured materials Photoluminescence Barium compounds Europium Phosphors Lithium compounds Borate glasses Glass ceramics Neutron effects

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Published Date

05-09-2006

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Source:

Applied Physics Letters, 89 (10), 2006

Faculty

Applied Sciences

Department

Radiation, Radionuclides and Reactors

Abstract

A glass-ceramic thermal neutron imaging plate material is reported. The material consists of a neutron sensitive 2B2O3–Li2O glass matrix containing nanocrystallites of the storage phosphor BaCl2:Eu2+. When doped with 0.5?mol?% Eu2+, the neutron induced photostimulated luminescence (PSL) conversion efficiency of the 10B enriched glass-ceramic is around 60% of that a commercial neutron imaging plate, while the ? sensitivity is an order of magnitude lower than that of the commercial plate. A Eu2+-concentration series shows that the PSL efficiency for x rays is optimized at 0.01?mol?% Eu2+. Thermoluminescence measurements indicate trap depths in BaCl2:Eu2+ ranging from 0.55?to?2.7?eV.

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