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

页码：5259 / 5265

页数：7

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