title: Thermal effect on thermoluminescence response of hydroxyapatite.
abstract: This paper presents the experimental results of the thermoluminescence (TL) induced by gamma radiation in synthetic hydroxyapatite (HAp) obtained by the precipitation method, using Ca(NO3)2·4H2O and (NH4)2HPO4 and calcined at different temperatures. The structural and morphological characterization was carried out by X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques. TL response as a function of gamma radiation dose was in a wide range, where intensity was enhanced in the sample annealed at 900°C, which tricalcium diphosphate (TCP) phase appear. Fading of the TL was also studied.
authors.affiliation: Instituto de Investigacion en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Mich., México. Electronic address: jzarate@umich.mx.
authors.forename: J
authors.initials: J
authors.lastname: Zarate-Medina
authors.affiliation: Instituto de Investigacion en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Mich., México.
authors.forename: K J
authors.initials: KJ
authors.lastname: Sandoval-Cedeño
authors.affiliation: Instituto de Investigacion en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Mich., México.
authors.forename: A
authors.initials: A
authors.lastname: Barrera-Villatoro
authors.affiliation: Instituto de Investigacion en Metalurgia y Materiales de la Universidad Michoacana de San Nicolás de Hidalgo, Edif. "U", C.U. 58060 Morelia, Mich., México.
authors.forename: J
authors.initials: J
authors.lastname: Lemus-Ruiz
authors.affiliation: Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada-Legaria, IPN. Av. Legaria 694, Col. Irrigación 11500, México D.F., México. Electronic address: riveramt@hotmail.com.
authors.forename: T
authors.initials: T
authors.lastname: Rivera Montalvo
mesh_terms: D018786:Bone Substitutes / Q000737:chemistry / Q000528:radiation effects; D002130:Calcium Phosphates / Q000737:chemistry / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D017886:Durapatite / Q000737:chemistry* / Q000528:radiation effects*; D006358:Hot Temperature; D006801:Humans; D066298:In Vitro Techniques; D008855:Microscopy, Electron, Scanning; D033362:Powder Diffraction; D013819:Thermoluminescent Dosimetry
chemical_list: D018786:Bone Substitutes; D002130:Calcium Phosphates; D017886:Durapatite; C018392:tricalcium phosphate
keywords: Precipitation method; Synthetic hydroxyapatite; Thermoluminescence; Tricalcium diphosphate