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西南核物理与化学研究所
收稿日期:1988-09-27,
纸质出版日期:1990-05
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李忠英, 张海黔. 用外推电离室绝对测定电子束吸收剂量[J]. 核技术, 1990,13(5):274-279.
Zhongying Li, Haiqian Zhang. Absolute determination of electron absorbed dose by an extrapolation chamber[J]. Nuclear techniques, 1990, 13(5): 274-279.
本文叙述了用外推电离室法绝对测定电子吸收剂量的原理和技术,给出用此法测定的J-2.5MV静电加速器电子束在几种材料中的吸收剂量及深度剂量的分布、实际射程和剂量场分布,其中模体材料吸收剂量结果总不确定度好于1.7%,和国际上同类测量所给的总不确定度在同一范围。
This paper describes the principle and technology of absolute determination of electron absorbed dose by an extrapolation chamber. The absorbed dose
its distributions in depth and along scanning direction and practical ranges in several materials for electron beams of the J-2.5 MV Van de Graaff accelerator
were measured. The estimated uncertainty of the absorbed dose in medium m was 1.7%
falling in the range reported by similar works of the world.
ICRU Report, 35 , 1984 .
D. Harder , Symposium on high-energy electrons-Montreux , 1964 , p, 40 .
D. Harder , ibid , p. 260 .
ICRU Report, 31 , 1979 .
ICRU Report, 34 , 1982 .
J. R. Greening , Phys. Med. Biol. , 9 ( 1964 ), 143
ICRU Report,37 , 1984 .
R. Janka , et al ., Rediat. Phys. Chem. , 18 ( 1981 ), 927
张子骞 等 , 科学实验与技术 , 6 ( 1988 ), 40 。
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