title: Dose response of commercially available optically stimulated luminescent detector, Al2O3:C for megavoltage photons and electrons.
abstract: This study examined the dose response of an optically stimulated luminescence dosemeter (OSLD) to megavoltage photon and electron beams. A nanoDot™ dosemeter was used to measure the dose response of the OSLD. Photons of 6-15 MV and electrons of 9-20 MeV were delivered by a Varian 21iX machine (Varian Medical System, Inc. Milpitas, CA, USA). The energy dependency was <1 %. For the 6-MV photons, the dose was linear until 200 cGy. The superficial dose measurements revealed photon irradiation to have an angular dependency. The nanoDot™ dosemeter has potential use as an in vivo dosimetric tool that is independent of the energy, has dose linearity and a rapid response compared with normal in vivo dosimetric tools, such as thermoluminescence detectors. However, the OSLD must be treated very carefully due to the high angular dependency of the photon beam.
authors.affiliation: Department of Radiation Oncology,  Kyung Hee University Hospital at Kangdong, Seoul,  Korea.
authors.forename: Dong Wook
authors.initials: DW
authors.lastname: Kim
authors.forename: Weon Kuu
authors.initials: WK
authors.lastname: Chung
authors.forename: Dong Oh
authors.initials: DO
authors.lastname: Shin
authors.forename: Myonggeun
authors.initials: M
authors.lastname: Yoon
authors.forename: Ui-Jung
authors.initials: UJ
authors.lastname: Hwang
authors.forename: Jeong-Eun
authors.initials: JE
authors.lastname: Rah
authors.forename: Hojin
authors.initials: H
authors.lastname: Jeong
authors.forename: Sang Yeob
authors.initials: SY
authors.lastname: Lee
authors.forename: Dongho
authors.initials: D
authors.lastname: Shin
authors.forename: Se Byeong
authors.initials: SB
authors.lastname: Lee
authors.forename: Sung Yong
authors.initials: SY
authors.lastname: Park
mesh_terms: D000537:Aluminum Oxide / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D004307:Dose-Response Relationship, Radiation; D004583:Electrons; D008163:Luminescent Measurements / Q000379:methods*; D053758:Nanoparticles / Q000737:chemistry; D055095:Optics and Photonics; D017785:Photons; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation*
chemical_list: D002244:Carbon; D000537:Aluminum Oxide