Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u <sup>18</sup>O with Thick Natural Lead Target

Wang Jicheng; Zhang Li; Guo guanghui; Zhao Jinhua; Zheng Jiwen

Chinese Physics C> 1995, Vol. 19> Issue(S3) : 241-246

Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u ¹⁸O with Thick Natural Lead Target

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China

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By using an 28 MeV/u ¹⁸O beam, an on-line molten lead target equipment, and 4πΔE_β-γ coincident technique, the relative cross-section ratios and approximate absolute cross section for the neutron-rich nuclides ^205-208Hg have been measured; the probable existence of ²⁰⁹Hg is observed and its production cross section is extrapolated. The cross section of ²⁰⁷Hg produced by -2p+1n reaction from the target nucleus depresses suddenly, which may be explained by the variation of reaction Q value.
- on-line melting lead target ,
- relative cross section ,
- transfer reaction ,
- decay curve

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Wang Jicheng, Zhang Li, Guo guanghui, Zhao Jinhua and Zheng Jiwen. Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u ¹⁸O with Thick Natural Lead Target[J]. Chinese Physics C, 1995, 19(S3): 241-246.

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Received: 1994-06-10

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Supported by the National Natural Science Foundation of China and The Chinese Academy of Sciences.

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沈阳化工大学材料科学与工程学院沈阳 110142

Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u ¹⁸O with Thick Natural Lead Target

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou, China

Received Date: 1994-06-10

Fund Project: Supported by the National Natural Science Foundation of China and The Chinese Academy of Sciences.

Abstract: By using an 28 MeV/u ¹⁸O beam, an on-line molten lead target equipment, and 4πΔE_β-γ coincident technique, the relative cross-section ratios and approximate absolute cross section for the neutron-rich nuclides ^205-208Hg have been measured; the probable existence of ²⁰⁹Hg is observed and its production cross section is extrapolated. The cross section of ²⁰⁷Hg produced by -2p+1n reaction from the target nucleus depresses suddenly, which may be explained by the variation of reaction Q value.

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Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u ¹⁸O with Thick Natural Lead Target

Cross-section Measurement of Neutron-Rich Hg Nuclides in Reaction of 28 MeV/u ¹⁸O with Thick Natural Lead Target