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Journal of Chemistry
Volume 2013 (2013), Article ID 930818, 4 pages
http://dx.doi.org/10.1155/2013/930818
Research Article

Dose Dependence of Mechanoluminescence Properties in MgAl2O4: Dy Phosphor

1Department of Applied Chemistry, O.P. Jindal Institute of Technology, Raigarh 496001, India
2Department of Applied Physics, O.P. Jindal Institute of Technology, Raigarh 496001, India

Received 24 May 2013; Accepted 8 October 2013

Academic Editor: Ewa Schab-Balcerzak

Copyright © 2013 Kabita K. Satapathy and G. C. Mishra. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A reliable dosimetry is fundamental for quality assurance of the processes and irradiation products. All dosimetric systems for high doses have some limitation with regard to their use. Dosimetric system should be easy to use, fast to measure, and of low cost. Good phosphor which shows high luminescence properties may fulfil the above criteria in some way. MgAl2O4: Dy phosphor has been prepared by solution combustion technique and confirmed with the help of XRD. ML has been excited impulsively by dropping a load of mass 0.7 kg onto the phosphors from various heights; two distinct ML peaks are observed for all the samples. It is observed that MgAl2O4: Dy phosphor shows linear response to gamma-ray dose and low fading which can be used for dosimetric purpose.