Journal of Radioanalytical and Nuclear Chemistry
Volume/Issue:
Volume 176: Issue 6
Thermoluminescence of bone equivalent calcium phosphate ceramics
Authors:
B. Henaish Atomic Energy Authority Radiation Protection Department, Nuclear Research Centre Cairo Egypt

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A. El-Agramy National Centre for Nuclear Safety and Radiation Control Nasr City, Cairo Egypt

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, and
W. Abdel-Fattah National Research Center Ceramic Department Dokky Cairo Egypt

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Pages:
477–489
Online Publication Date:
30 Sep 2005
Publication Date:
17 Dec 1993
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf02177684
Restricted access

Abstract  

TL-glow curves of calcium phosphate ceramic powders prepared either from natural or synthetic phosphates have been investigated. The TL-samples from synthetic phosphates, particularly those having Ca/P ratio=2.8, show higher TL-sensitivity, about 1/10 times that of LiF TLD-100 powders, with glow curves having maxima (peaks) around 110, 175 and 325 °C. The TL-response of all phosphate ceramic samples showed a dependence on -dose, well described by a power function in a range from about 1 to 104 Gy, which is useful for therapeutic and radiation processing levels. For regeneration of irradiated TL-samples, annealing around 350 °C for 20 min was found suitable. A low Ca/P ratio can be recommended for high dose measurements, while higher ratio gives greater TL-sensitivity, hence allowing measurement of lower -doses.

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Cover Journal of Radioanalytical and Nuclear Chemistry
Journal of Radioanalytical and Nuclear Chemistry
Print ISSN:
0236-5731
Online ISSN:
1588-2780

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Journal of Radionalytical and Nuclear Chemistry
Language English
Size A4
Year of
Foundation		 1968
Volumes
per Year		 1
Issues
per Year		 12
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0236-5731 (Print)
ISSN 1588-2780 (Online)

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