Primary activity standardization of 18F for the calibration of the KRISS ionization chamber

被引：0
|
作者：
Agusbudiman, Agung [1 ,2 ]
Lee, Kyoung Beom [1 ,2 ]
Lee, Jong Man [1 ,2 ]
Hwang, Sanghoon [1 ,2 ]
Kim, Byoung Chul [1 ]
Heo, Dong Hye [1 ]
机构：
[1] Korea Res Inst Stand & Sci KRISS, Ionizing Radiat Metrol Grp, 267 Gajeong Ro, Daejeon 34113, South Korea
[2] Univ Sci & Technol UST, Dept Sci Measurement, 217 Gajeong Ro, Daejeon 34113, South Korea
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2023年 / 332卷 / 12期
关键词：
Fluorine-18; Activity standardization; 4 pi beta(LS)-gamma coincidence counting; Triple to double coincidence ratio; Ionization chamber;
D O I：
10.1007/s10967-023-09099-6
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A primary activity standardization of F-18 was carried out at KRISS by means of the 4 pi beta(LS)-gamma coincidence counting with a combined standard uncertainty of 0.31%. The activity value was compared with those obtained from the TDCR method, which was performed as a confirmatory measurement of the standardization. The final massic activity value of (13.186 +/- 0.041) MBq.g(-1) at k = 1 was found and used as the reference value to calibrate the KRISS reference ionization chamber employed as the secondary measurement standard of F-18. The calibration result was then compared with the existing calibration factor that was obtained from the efficiency curve of the reference ionization chamber.
引用
收藏
页码：5259 / 5265
页数：7
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