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1993 Vol. 10, No. 4

Nuclear Physics
Modem Nuclear Physics and Its Development
Shi Zong-ren
1993, 10(4): 1-5. doi: 10.11804/NuclPhysRev.10.04.001
Abstract:
The most new scientific opportunities of nuclear physics are: the exploration of the quark degrees of freedom and of the underlying theory of the strong interaction, QCD, in the nuclearmedium; the study of the nuclear equation of state and of quark-gluon plasma (QGP); the study ofnuclear structure at the limits of temperature, angular momentum, and neutron-to-proton ratios; theuse of the nuclear medium for precision studies of fundamental aspects of the strong and...
Quark Delocalization, Color Screening and Intermediate Range Attraction of Nuclear Force
Wu Guanghan, Teng Lijian, Wang Fan
1993, 10(4): 6-10. doi: 10.11804/NuclPhysRev.10.04.006
Abstract:
We introduce the quark delocalization and color screening into the usual quark modeland the property of nuclear force. The resulting N-N phase shifts and the adiabatic potential aredescribed qualitatively well: there are exclusion core and also intermediate range attraction, but thereis no Van der Waals force. The delocalization parameter obtained from variational method is alsoreasonable. we consider especially the effect of mass center motion, the effect of forms of colorscreening...
Some Similarities between Atomic Clusters and Nuclei
Wang Guang-hou, Han Min
1993, 10(4): 11-15. doi: 10.11804/NuclPhysRev.10.04.011
Abstract:
Both atomic clusters (microclusters) and nuclei are systems of the finite number ofparticles but with different interaction forces among the component particles, and have somesimilarities in their properties, such as saturation, shell structures, magic numbers, isotopic effect,deformation and compound clusters (nuclear) process, etc. The similarities rivet attention in manyscientific communities from nuclear, atomic and molecular, and condensed matter physics as well aschemistry.
Cluster Models and Unified Models of Nuclear Decay
Li Mianfeng
1993, 10(4): 16-20. doi: 10.11804/NuclPhysRev.10.04.016
Abstract:
Both cluster models and unified models, describing in a unified manner alpha decay,cluster decay and spontaneous fission, are briefly introduced. The developments and problems ofnuclear decay models are also described.
Systematics of (n,t) Reaction Cross Sections
Yao Li-shan
1993, 10(4): 21-24. doi: 10.11804/NuclPhysRev.10.04.021
Abstract:
The systemaic characters of (n,t) reaction cross sections have been studied for mediumand heavy mass nuclei at 14 MeV. A set of the empirical formulas have been given on the bases of theodd-even effects. The (n,t) reaction cross sections of some nuclei have been calculated, and a goodagreement with the experimental data have been obtained. The Q-value effect and possible reactionmechanism are also discussed.
Acceleration and Physics of RI Deams (Continuation)
Huang Ye-cheng
1993, 10(4): 25-29. doi: 10.11804/NuclPhysRev.10.04.025
Abstract:
The principle and the present situation as well as the prospects corresponded to thephysics of RI beams are described.
Application of Nuclear Technology
New Generation Multidetector in 1990s
He Zhi-yong
1993, 10(4): 30-34. doi: 10.11804/NuclPhysRev.10.04.030
Abstract:
The construction, particle identification principle and energy calibration method of new generation multidetector are described. In the particle identification, three methods are presented:phoswich fast-slow composition, ΔE-E telescope and CsI fast-slow identification matrix.
Application and Prospect of Nuclear Techniques in Agriculture
Tang Zhang-xiong
1993, 10(4): 35-38. doi: 10.11804/NuclPhysRev.10.04.035
Abstract:
The research status of nuclear agronomy in our country and its development in othercountries are summaried in this paper. The results obtained in nuclear agronomy and its prospect arealso introduced.
Ion Beam Applications on a 100keV EMIS and Ion Implanter
Chen Miao, Zou Zhi-yi, Huang Jian-ming, Ye Bo-nian, Qian Wen-guo, Li Qin-wen
1993, 10(4): 39-42. doi: 10.11804/NuclPhysRev.10.04.039
Abstract:
A versatile low energy ion facility and its main specifications are described. Some newion beam applications and experimental results are given.
New Scintillating Material--Scintillating Fiber
Liu Shu-mei, Wang Yan-heng
1993, 10(4): 43-46. doi: 10.11804/NuclPhysRev.10.04.043
Abstract:
The working principle of scintillating fibers is briefly introduced in this paper. Thedecay time constant and spectral properties of the scintillating fibers of Tb_2O_3 and Ce_2O_3 glass aregiven. Comparing the properties of materials above and CeF_3 with those of other inorganic scintillatingmaterials, we find that CeF_3 and scintillating fibers of the Ce_2O_3 have an immense potential applicationmarket.
Metal Surface Modification by High Power Pulsed Ion Beams
Song Zhi-min, Jiang Xing-liu
1993, 10(4): 47-49. doi: 10.11804/NuclPhysRev.10.04.047
Abstract:
The implantation by using high power pulsed ion beams is a new way of metal surfacemodification. The processes and some experimental results of the implantation by using high power.
Applications and Studies of Nuclear Energy & Nuclear Data File
Basic Design for Qinshan Nuclear Project Ⅱ
Huang Jian-chi
1993, 10(4): 50-53. doi: 10.11804/NuclPhysRev.10.04.050
Abstract:
The basic design for Qinshan Nuclear Project Ⅱ is briefly introduced, which mainlyanalyzes the project site and the design for NSSS, special engineered safety, nuclear auxiliray system,annex systems, conventional island, Instrument and Control systems, power supply and distributionsystems and arrangement for buildings. The general design principle and technical features aresummarized in this paper.