钋
铍
放射化学
中子
中子温度
中子源
中子活化
中子活化分析
材料科学
化学
作者
J. W. T. Spinks,G. A. R. Graham
出处
期刊:Canadian journal of research
日期:1950-01-01
卷期号:28 (1): 60-66
被引量:3
摘要
The preparation of a polonium–beryllium sandwich containing 2.1 c. of polonium is described. The source emits 2 × 106 neutrons per second and its γ radiation is approximately equivalent to that of ...
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