Activation cross section and isomeric cross-section ratio for the 151Eu(n,α)148m,gPm process from threshold up to 20 MeV
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- 作者：Junhua Luo ; Long He
- 关键词：151Eu(n ; α)148m ; gPm reaction ; Neutron ; Cross section ; Isomeric cross section ratio ; TALYS ; 1.8
- 刊名：Journal of Radioanalytical and Nuclear Chemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：311
- 期：1
- 页码：349-354
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Nuclear Chemistry; Physical Chemistry; Nuclear Physics, Heavy Ions, Hadrons; Diagnostic Radiology; Inorganic Chemistry;
- 出版者：Springer Netherlands
- ISSN：1588-2780
- 卷排序：311
文摘
The cross sections of 151Eu(n,α)148m,gPm reactions and their isomeric cross section ratio σm/σt have been measured at three neutron energies 13.5, 14.1, and 14.8 MeV by means of the activation technique, relative to the 27Al(n,α)24Na reaction reference cross section. The pure cross section of the ground-state was then derived from the absolute cross section of the metastable state and residual nuclear decay analysis. The cross sections were also estimated using the nuclear model code, TALYS-1.8 with different level density options at neutron energies varying from the reaction threshold to 20 MeV. Results are discussed and compared with the corresponding literature.