YIELD OF SE-73 FOR VARIOUS REACTIONS AND ITS CHEMICAL-PROCESSING

被引:28
|
作者
NOZAKI, T [1 ]
ITOH, Y [1 ]
OGAWA, K [1 ]
机构
[1] KITASATO UNIV,FAC HYG SCI,SAGAMIHARA,KANAGAWA 228,JAPAN
来源
INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES | 1979年 / 30卷 / 10期
关键词
D O I
10.1016/0020-708X(79)90076-0
中图分类号
TL [原子能技术]; O571 [原子核物理学];
学科分类号
0827 ; 082701 ;
摘要
Excitation curves for the formation of 73Se by the following reactions were measured up to proton energy of 50 MeV and 3He- and α-particle energies of 40 MeV, together with those for byproduct formation reactions: (1) 75As (p, 3n) 73Se, (2) Ge + 3He → 73Se, and (3) Ge + α → 73Se. The proton reaction has proved to be much superior to the other reactions both in yield and product purity. Volatilization of 73Se from a solution of condensed polyphosphoric acid was found to give an excellent method of 73Se separation from various arsenic targets without carrier. Also, solvent extraction of red selenium 73Se with a minute amount of carrier was shown to be useful separation method. © 1979.
引用
收藏
页码:595 / 599
页数:5
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