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1998 Vol. 15, No. 2

Nuclear Physics
New Progress of Heavy Ion Collision Dynamics at Intermediate Energy
Liu Jian-ye, Liu Hang, Chen Bo
1998, 15(2): 65-73. doi: 10.11804/NuclPhysRev.15.02.065
Abstract:
Based on the analyses of successes and shortcomings of Boltzmanntype models and quantum molecular dynamics for heavy ion collisions, the new progress of twobody correlation transport theory and isospindependent transport models for heavy ion collision are proposed. 
Fluctuations in the Excitation Functions of Dissipative Heavy Ion Collisions
Wang Qi
1998, 15(2): 74-81. doi: 10.11804/NuclPhysRev.15.02.074
Abstract:
The present status of the studies on the cross section fluctuation phynomeno in dissipative heavy ion collisions (DHIC) is reviewed, especially for the fluctuation characteristics and the theoretical deuelopment.
Synthesis and Study of New Nuclei along the Protondrip Line Z=0.743N+11.6 in Rare earth Region
Li Zhan-kui, Xu Shu-wei, Xie Yuan-xiang, Ma Rui-chang
1998, 15(2): 82-87. doi: 10.11804/NuclPhysRev.15.02.082
Abstract:
It′s more and more difficult to synthesis and study new nuclei along the proton dripline by using online isotope separator because of its low efficiency. A specific method of “pγ” coincidence measurement, using the known lowlying “2+→0+(ground state)” γ transition of the “daughter” nucleus in coincidence with its βdelayed proton, could increase the detection sensitivity ...
Cross Discipline
Swift Heavy Ion Induced Effects in Condensed Matter——Electronic Energy loss Effects
Jin Yun-fan, Wang Zhi-guang
1998, 15(2): 88-96. doi: 10.11804/NuclPhysRev.15.02.088
Abstract:
Swift heavy ion induced effects in condensed matter, the electronic energy loss effects, which mainly include defect creation and latent track formation, anisotropic deformation, partial annealing of defects created by nuclear collisions and phase transformation (amorphization) as well as tentative mokels:the ion explosion spike model and the thermal spike model, are reviewed.
Intense Pulsed Ion Beams and Their Applications to Material Technology
Zhao Wei-jiang, Yan Sha, Han Bao-xi, Wang Yu-gang, Xue Jian-ming, Cai Chong-gui
1998, 15(2): 97-102. doi: 10.11804/NuclPhysRev.15.02.097
Abstract:
Study on Decay Process of Radioactive Products after Nuclear Explosion
Shen Yao-song, Liu Cheng-an
1998, 15(2): 103-109. doi: 10.11804/NuclPhysRev.15.02.103
Abstract:
The evolution of radioactivity and poisonousness of the products after nuclear explosion is very important for safety and environmental protection. The detailed study of the evolution of radioactivity of fission products, biological hazard potential, energy deposition and so on was performed by using the new data base and code. The contributions of the main radioactive nuclei and the evolution of radioisotopes in soil and rock are also discussed.
Recent Progress of Stable Isotopes Study on Pharmacokinetics
Liang Jian-ping, Wei Zen-quan, Zhang Li, Wu Fen-xing,  Li Rong
1998, 15(2): 110-114. doi: 10.11804/NuclPhysRev.15.02.110
Abstract:
The recent progress of the Stable Isotopes(SI) research on pharmacokinetics is reviewed. With development of MS and GCMS, it will be an important method for studying drugs.
Nuclear Energy and Nuclear Data File
Study on Spallation Target of Accelerator Driving Nuclear Energy System
Xu Chun-cheng, Ye Yan-lin, Guo Hua
1998, 15(2): 115-120. doi: 10.11804/NuclPhysRev.15.02.115
Abstract:
The present status of the study on the neutron production rate, the neutron energy spectrum and the radiative nuclear production from the target spallation in accelerator driven clean nuclear system is presented. The Monto Carlo simulation and the related physics are also discussed. Their further improvement and the suggestions for the work to be done in China are proposed.
Fast Benchmark Testing of 235,238U
谢文胜, 纳忠杰, 徐宴芳
1998, 15(2): 121-124. doi: 10.11804/NuclPhysRev.15.02.121
Abstract:
Four fast benchmark experiments have been used to the data of 235,238U in testEndf/B-VI,JENDL-3 and CENDL-2 nuclear date libraries...
Letter
The First Observation of 209Hg
Zhao Jin-hua, Zhang Li, Zheng Ji-wen, Wang Ji-cheng, Qin Zhi, Yang Young-feng, Zhang Chun, Jin Gen-ming, Guo Guang-hui, Du Yi-fei, Guo Tian-rui, Wang Tong-qing, Guo Bin, Tian Jin-feng
1998, 15(2): 125-126. doi: 10.11804/NuclPhysRev.15.02.125
Abstract(1989) PDF (430KB)(476)
Abstract:
The new neutronrich mercury isotope 209Hg has been identified from the separated mercury products producted in 600 MeV 18O+natPb (thick target) reaction. An online, gasthermochromatographic technique and a special detection method were used. Four γ rays following the 209Hg decay were assigned. The halflife of 209Hg was determined to be 35+9-6 s. 