Skip Navigation



Radiation Protection Dosimetry Advance Access published online on March 12, 2008
Radiation Protection Dosimetry, doi:10.1093/rpd/ncn061
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow All Versions of this Article:
130/3/291    most recent
ncn061v1
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Maghrabi, M.
Right arrow Articles by Arafah, D.-E.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Maghrabi, M.
Right arrow Articles by Arafah, D.-E.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

MIXED- AND GENERAL-ORDER KINETICS APPLIED TO SELECTED THERMOLUMINESCENCE GLOW CURVES

M. Maghrabi1, J. Al-Jundi1 and D.-E. Arafah2,*

1 Physics Department, Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan
2 Physics Department, The University of Jordan, Amman 11942, Jordan

* Corresponding author: darafah{at}ju.edu.jo

Received September 22, 2007, amended November 16, 2007, accepted January 23, 2008

Mixed-order (MO) and general-order (GO) kinetics expressions are applied to experimental glow curves of CaSO4:Ce, LiNaSO4:Eu, BaF2:Ce and SrF2:Er. The purpose is to compare the activation energies derived from the two models to investigate the correlation between the order of kinetics, b, and the parameter {alpha} of the MO model for real systems and to explore the validity of the correlation between b and {alpha} derived from the analysis of synthetic glow peaks or experimentally isolated single peak for complex glow curves. The two alternative routes resulted in clean fits with very close values of the sum of squared residuals. The general conclusions are: (1) the activation energies derived from the MO model are slightly higher than the ones derived from the GO model, but the difference appears to be insignificant, (2) the correlation between b and {alpha} is not smooth and the scatter in the b values for a given {alpha} is within the theoretically expected spread in the b value and (3) the MO expression is capable of evaluating the shape parameters as accurately as the GO expression with the advantage that it has a physical basis contrary to the purely empirical GO model.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.