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Radiation Protection Dosimetry Advance Access originally published online on May 29, 2009
Radiation Protection Dosimetry 2009 135(1):47-53; doi:10.1093/rpd/ncp096
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© The Author 2009. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Mass attenuation coefficients of natural Rhizophora spp. wood for X-rays in the 15.77–25.27 keV range

B. Z. Shakhreet1,2,*, S. Bauk3, A. A. Tajuddin1 and A. Shukri1

1 School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia
2 Department of Physics, Al-Jouf University, P.O. Box 3375, Sakaka 75471, Saudi Arabia
3 Physical Sciences Program, School of Distance Education, Universiti Sains Malaysia, 11800 Penang, Malaysia

* Corresponding author: bshakhreet{at}yahoo.com

Received January 8, 2009, amended April 29, 2009, accepted April 29, 2009

The mass attenuation coefficients (µ/{rho}) of Rhizophora spp. were determined for photons in the energy range of 15.77–25.27 keV. This was carried out by studying the attenuation of X-ray fluorescent photons from zirconium, molybdenum, palladium, silver, indium and tin targets. The results were compared with theoretical values for average breast tissues in young-age, middle-age and old-age groups calculated using photon cross section database (XCOM), the well-known code for calculating attenuation coefficients and interaction cross-sections. The measured mass attenuation coefficients were found to be very close to the calculated XCOM values in breasts of young-age group.


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