title: National comparison of activity measurements of ¹³¹I, ⁶⁰Co, and ¹³³Ba in Indonesia.
abstract: National comparisons of radioactivity measurements of (131)I and (60)Co (in 2010) and of (133)Ba (in 2011) were carried out within the framework of the National Radiation Metrology Laboratory Program of Indonesia, coordinated by PTKMR-BATAN. Eleven laboratories took part in the comparison, and all measurements were made using gamma spectrometry, on point sources with an activity between 2000Bq and 6000Bq. Several laboratories reported values which were more than 10% different from the reference value for (131)I and (133)Ba. Possible reasons for these differences are discussed. This program will be continued with other radionuclides to maintain and control quality assurance for the local laboratories.
authors: PTKMR-BATAN, Department of Metrology Radiation, Jalan Lebak Bulus Raya No. 49, PO Box 7043 JKSKL, Jakarta Selatan, DKI Jakarta 12070, Indonesia. Electronic address: Gatot_w@batan.go.id.
authors: Gatot
authors: G
authors: Wurdiyanto
authors: PTKMR-BATAN, Department of Metrology Radiation, Jalan Lebak Bulus Raya No. 49, PO Box 7043 JKSKL, Jakarta Selatan, DKI Jakarta 12070, Indonesia.
authors: Pujadi
authors: P
authors: Marsoem
authors: PTKMR-BATAN, Department of Metrology Radiation, Jalan Lebak Bulus Raya No. 49, PO Box 7043 JKSKL, Jakarta Selatan, DKI Jakarta 12070, Indonesia.
authors: Susilo
authors: S
authors: Widodo
authors: PTKMR-BATAN, Department of Metrology Radiation, Jalan Lebak Bulus Raya No. 49, PO Box 7043 JKSKL, Jakarta Selatan, DKI Jakarta 12070, Indonesia.
authors: Dadong
authors: D
authors: Iskandar
authors: PTNBR-BATAN, Indonesia.
authors: Muhayatun
authors: PRSG-BATAN, Indonesia.
authors: Unggul
authors: U
authors: Hartoyo
authors: PDL, Indonesia.
authors: Sugino
authors: PTAPB, Indonesia.
authors: I Gede
authors: IG
authors: Sutresna
authors: PATIR, Indonesia.
authors: Tommy
authors: T
authors: Hutabarat
authors: PRR, Indonesia.
authors: Ibon
authors: I
authors: Suparman
authors: PTBIN, Indonesia.
authors: Setyo
authors: S
authors: Purwanto
keywords: (131)I; (133)Ba; (60)Co; Activity comparison; Gamma spectrometry