title: Dose-response and intrinsic efficiency of thermoluminescent dosimeters in a 15 MV clinical photon beam in a liquid water phantom.
abstract: This paper compares the performance of CaSO4:Dy and LiF dosimeters irradiated with a 15 MV photon beam of a clinical linear accelerator to 0.1-10 Gy in a liquid water. The dose-response curves are linear up to 5 Gy. The average TL sensitivity of CaSO4:Dy is 26 and 287 times higher than the sensitivities of LiF:Mg,Ti and microLiF:Mg,Ti, respectively. CaSO4:Dy has an intrinsic efficiency 71% and 94% higher than the intrinsic efficiencies of LiF:Mg,Ti and microLiF:Mg,Ti, respectively.
authors.affiliation: Instituto de Pesquisas Energéticas e Nucleares (IPEN-CNEN), Avenida Professor Lineu Prestes, 2242, Cidade Universitária, São Paulo, SP, Brazil.
authors.forename: A
authors.initials: A
authors.lastname: Bravim
authors.forename: R K
authors.initials: RK
authors.lastname: Sakuraba
authors.forename: J C
authors.initials: JC
authors.lastname: Cruz
authors.forename: L L
authors.initials: LL
authors.lastname: Campos
mesh_terms: D002133:Calcium Sulfate / Q000032:analysis; D004307:Dose-Response Relationship, Radiation; D057230:Limit of Detection; D019047:Phantoms, Imaging; D017785:Photons; D013819:Thermoluminescent Dosimetry / Q000295:instrumentation*
chemical_list: D002133:Calcium Sulfate