共 50 条
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
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
相关论文