Chinese Physics C > 1995, Vol. 19 > Issue(8): 686-691

Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u¹⁸O with Thick Natural Lead Target

The institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

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Abstract：
By using 28MeV/u ¹⁸O beam,an on-line melting lead target equipment and 4π-ΔEβ-γcoincident technique,the relative cross section ratios and absolute cross sections of neutron-rich nuclides ^205—208Hg have been measured. The production cross section of ²⁰⁹Hg is extrapolated.The cross section of ²⁰⁷Hg produced by-2p +1n from target decreases suddenly,which may be explained by change of reaction Q value.

References

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Ph.Dessagne et al,Nucl.Phys.A426（1984）399.[2] K.Moody et al,GSI Scientific Report,（1984）93.[3] A.Turler et al,GSI Scientific Report,（1984）95.[4] 杨维凡等，高能物理与核物理，17（1993）873.[5] 杨维凡等，核物理动态，10,（1993）25.[6] Zhang Li et al,Phys.Rev.,C49（1994）27.[7] Zhao Jinhua et al,Chin.J.of Nucl.Phys,14（1992）267.[8] 王积成等，高能物理与核物理，19（1995）653.[9] Table of Lsotopes,7th ed,edited by C.Michael Lederer and Virginia S.Shirley（Wiley,NewYork,1978）.[10] Ch.Wennemann et al,Z.Phys.,A347（1994）185.[11] Meissner et al.GSI Scientific Report,（1992）19.

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Wang Jicheng, Zhang Li, Guo Guanghui, Zhao Jinhua and Zheng Jiwen. Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u ¹⁸O with Thick Natural Lead Target[J]. Chinese Physics C, 1995, 19(8): 686-691.

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Cross Section Measurements of Neutron-Rich Hg Isotopes in Reaction of 28MeV/u¹⁸O with Thick Natural Lead Target

Corresponding author:Wang Jicheng,

The institute of Modern Physics,The Chinese Academy of Sciences,Lanzhou 730000

Received Date:1900-01-01
Accepted Date:1900-01-01
Available Online:1995-08-05

Abstract:By using 28MeV/u¹⁸O beam,an on-line melting lead target equipment and 4π-ΔEβ-γcoincident technique,the relative cross section ratios and absolute cross sections of neutron-rich nuclides^205—208Hg have been measured. The production cross section of²⁰⁹Hg is extrapolated.The cross section of²⁰⁷Hg produced by-2p +1n from target decreases suddenly,which may be explained by change of reaction Q value.