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Titre :
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Application of thermally and optically stimulated luminescence (TL&OSL) in radiation dosimetry : Elaboration and response study of Al2O3:Sb and BeOR dosimeter materials
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Auteurs :
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Chahra-Zed Benkhelifa, Auteur ;
Fayçal Kharfi, Directeur de thèse
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Type de document :
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document électronique
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Editeur :
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Sétif : Université Ferhat Abbas faculté des sciences département de physique, 2024
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ISBN/ISSN/EAN :
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E-TH/2291
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Format :
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1vol.(107 f.) / ill.en coul
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Note générale :
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Bibliogr.
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Langues:
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Anglais
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Catégories :
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Thèses (en français - en anglais) > Document électronique
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Mots-clés:
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Stimulated luminescence
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Al2O3:Sb
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BeOR
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Radiation dosimetry
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Résumé :
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The main objective of this doctoral thesis project is the elaboration by sol-gel process and characterization by different techniques of Sb-doped Al2O3 (Al2O3:Sb).BeO dosimetry material was also characterized in terms of dose-response and luminescence kinetics. The tested dose-response, energy dependence and repeatability of Al2O3:Sb were optimal,by producing higher TL and OSL intensity signals,for an Sb dopant optimal amount of~1 wt%.The dose-response of Al2O3:Sb1% was linear of both TL&OSL signals within the studied dose range(0-80 Gy).The dose-response and the energy dependence (5 keV-18 MeV)of this material allow effective use in high-energy radiation detection and dosimetry. Repeatability test indicates standard deviation values of 4.4% for TL and 2.8% for OSL.The elaborated cheap and efficient Sb-doped Al2O3 TL-OSL material exhibits the same level performance as commercial Al2O3:C.The TL and OSL kinetics of a recently developed beryllium-oxide dosimeter BeOR have been studied using different methods, namely: peak shape(PS), FOK-GlowFit and GOK-CGCD. Main kinetics parameters were extracted and compared. Established kinetics and dose-response of BeOR demonstrate an advantage in the application of such dosimeter for photon dosimetry in radiotherapy.
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Côte titre :
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E-TH/2291
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En ligne :
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http://dspace.univ-setif.dz:8888/jspui/bitstream/123456789/4344/1/Thesis%20Benkhelifa%20Chahra-Zed.pdf
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Exemplaires (1)
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| E-TH/2291 | Thèse | Bibliothèque centrale | Disponible |
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