19.1MeV中子诱发~(235)U裂变质量分布研究

详细信息

MASS DISTRIBUTION IN 19.1 MeV NEUTRON-INDUCED FISSION OF ~(235)U

摘要: 用双裂变电离室测量了靶物质碎片的裂变率 ,由阈探测器测量了中子能谱 ,用γ能谱法测量了 19 1Mev中子诱发2 3 5U裂变时95Zr,14 7Nd等 35种产物核素的产额。并绘制了产额 -质量分布曲线
- 235U /
- 裂变产额测定 /
- γ能谱法
Abstract: chain yields are determined for the fission of 235 U induced by 19.1 MeV neutrons by HPGe γ ray spectrometry. Absolute fission rate is monitored with a double fission chamber. The efficiency of the fission chamber is checked with absolute determination of 198 Au activity from 197 Au(n,γ) 198 Au reaction for the first time. Fission product activities of irradiated 235 U foils are measured by HPGe γ ray spectrometry without chemical separation. Threshold detector method is used to estimate the fission events induced by neutrons of other energies.
- fission yield /
- 235 U /
- γ ray spectrometry

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