title: Direct measurement of ⁶⁰Co and ¹²⁵I activity by the sum-peak method in PTKMR-BATAN.
abstract: The sum-peak method was successfully applied to the determination of the activity of (60)Co and (125)I sources measured by HPGe and well-type NaI(Tl) detectors in PTKMR-BATAN. The result of the (60)Co activity agrees with the activity value measured by using a calibrated ionization chamber within a range of about 0.35-0.5% and the activity result of (125)I agrees with the activity value measured using the photon-photon coincidence method within a range of 0.05-0.26%.
authors.affiliation: Center for Technology of Radiation Safety and Metrology, National Nuclear EnergyAgency, Jalan Lebak Bulus Raya No. 49, POB 7043-JKSKL, Jakarta Selatan 12070, Indonesia. Electronic address: pujadi@batan.go.id.
authors.forename: Pujadi
authors.initials: P
authors.lastname: Marsoem
authors.affiliation: Center for Technology of Radiation Safety and Metrology, National Nuclear EnergyAgency, Jalan Lebak Bulus Raya No. 49, POB 7043-JKSKL, Jakarta Selatan 12070, Indonesia.
authors.forename: Gatot
authors.initials: G
authors.lastname: Wurdiyanto
authors.affiliation: Center for Technology of Radiation Safety and Metrology, National Nuclear EnergyAgency, Jalan Lebak Bulus Raya No. 49, POB 7043-JKSKL, Jakarta Selatan 12070, Indonesia.
authors.forename: Hermawan
authors.initials: H
authors.lastname: Candra
authors.affiliation: Center for Technology of Radiation Safety and Metrology, National Nuclear EnergyAgency, Jalan Lebak Bulus Raya No. 49, POB 7043-JKSKL, Jakarta Selatan 12070, Indonesia.
authors.forename: Holnisar
authors.initials: H
authors.lastname: Saibatulham
keywords: (125)I; (60)Co; HP(Ge); NaI(Tl); Standardization; Sum-peak method