title: Calibration of a scintillation dosemeter for beta rays using an extrapolation ionization chamber.
abstract: A scintillation dosemeter is calibrated for 90Sr/90Y beta rays from an ophthalmic applicator, using an extrapolation ionization chamber as a reference instrument. The calibration factor for the scintillation dosemeter agrees with that given by the manufacturer of the dosemeter within ca. 2%. The estimated overall uncertainty of the present calibration is ca. 6% (2 sd). A calibrated beta-ray ophthalmic applicator can be used as a reference source for further calibrations performed in the laboratory or in the hospital.
authors.affiliation: Radiation Metrology Laboratory, Radiation and Nuclear Safety Authority, P.O. Box 14, FIN-00881 Helsinki, Finland. arvi.hakanen@stuk.fi
authors.forename: A T
authors.initials: AT
authors.lastname: Hakanen
authors.forename: P M
authors.initials: PM
authors.lastname: Sipilä
authors.forename: A
authors.initials: A
authors.lastname: Kosunen
mesh_terms: D001610:Beta Particles; D002138:Calibration / Q000592:standards; D019544:Equipment Failure Analysis / Q000379:methods* / Q000592:standards*; D005062:European Union; D011829:Radiation Dosage; D011874:Radiometry / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D012015:Reference Standards; D015203:Reproducibility of Results; D012588:Scintillation Counting / Q000295:instrumentation* / Q000379:methods / Q000592:standards*; D012680:Sensitivity and Specificity