Eur. Phys. J. Appl. Phys.
Volume 49, Number 3, March 2010
|Number of page(s)||5|
|Section||Imaging, Microscopy and Spectroscopy|
|Published online||16 February 2010|
Gamma radiation dosimetry using transmission and reflection spectroscopy of KClxBr1-x as TL crystals
Physics Department, Imam Hossein University, P.O. Box 16575, -347, Tehran, I.R. Iran
2 Physics Department, Faculty of Basic Sciences, Tarbiat Modares University, P.O. Box 14115, -175, Tehran, I.R. Iran
Corresponding author: Malekfar@Modares.ac.ir
Revised: 6 August 2009
Accepted: 11 December 2009
Published online: 16 February 2010
In this article we have shown that it is possible to use transmission, absorption and reflection spectroscopic data of KClxBr1-x single crystals for the TL (Thermo Luminescence) dosimetry purposes in the spectral range of 250-750 nm. The effects of gamma radiation on KClxBr1-x single crystals were investigated by radiating the samples with a 60Co source and studying the reflection and absorption spectra. Six doses of gamma radiation of 145, 300, 450, 600, 750 and 900 Gy were examined. The absorption peak height in the spectral region of 560-580 nm is in a direct relationship with the gamma radiation doses up to about 800 Gy, in which saturation starts to occur. The intensities of the color centers in mixed crystals are different by their combination ratios of the components contents. According to the reflection and transmission data, the absorption spectra can be calculated and a calibration curve sketched.
© EDP Sciences, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.