title: Modeling the thermoluminescent response of CaSO4:Dy by the MCNPX method.
abstract: This work describes an algorithm for absorbed dose evaluation in the region of X-ray diagnostic energy based on the response of CaSO(4):Dy thermoluminescence powder detectors. The absorbed dose was calculated using Monte Carlo simulation code (MCSC) and then compared to the experimental TLD results for X-rays effective energies (60)Co gamma radiation. In order to study the photon interaction in the matter, a cylindrical model of 1 cm(3) was used. The gamma radiation source was placed at 100 cm to the object; the source is considered as an isotropic source of (60)Co. The energy deposited into the cylindrical model was determined by the Monte Carlo N-particle (MCNPX) method. Measurements of the TL phosphors were obtained by irradiating the powder by gamma radiation. TL glow curve of CaSO(4):Dy after gamma irradiated at a 1 Gy of absorbed dose was then obtained.
authors.affiliation: Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Legaria-IPN, México DF, México.
authors.forename: C
authors.initials: C
authors.lastname: Furetta
authors.forename: J
authors.initials: J
authors.lastname: Roman
authors.forename: T
authors.initials: T
authors.lastname: Rivera
authors.forename: J
authors.initials: J
authors.lastname: Azorín
authors.forename: C G
authors.initials: CG
authors.lastname: Azorín
authors.forename: H R
authors.initials: HR
authors.lastname: Vega-Carrillo
mesh_terms: D002133:Calcium Sulfate / Q000528:radiation effects; D017076:Computer-Aided Design; D003627:Data Interpretation, Statistical; D004867:Equipment Design; D019544:Equipment Failure Analysis; D009010:Monte Carlo Method; D011829:Radiation Dosage; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation*
chemical_list: D002133:Calcium Sulfate