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1994 Vol. 11, No. 1

Nuclear Physics
Puzzles in Studies of Quantum Chaos
Xu Gong-ou
1994, 11(1): 1-4. doi: 10.11804/NuclPhysRev.11.01.001
Abstract:
Puzzles in studies of quantum chaos are discussed. From the view of global properties of quantum states, it is clarified that quantum chaos originates from the break-down of invariant properties of quantum canonical transformations. There edest precise correspondences between quantum and claedcal chads.
Antiproton physics
Li Yang-guo
1994, 11(1): 5-11. doi: 10.11804/NuclPhysRev.11.01.005
Abstract:
In this paper several physical phenomena of antiproton-nucleon and antiproton-necleus collision are discussed. The potential obtained from p-N scattering is attraction and absorption type. The optical potential of nucleus is strong absorption type. The annihilation happens after pp collision and thenproduces many kinds of meson, hadron, even produce some exotic particle and charmonium at high energy pp anihilation. Posibilities to find hybrids, antiproton and other particles in nucleus are also explored.
Trends in Cluster Impact Fusion
Lin Sen-hao, Shen Wen-qing
1994, 11(1): 12-16. doi: 10.11804/NuclPhysRev.11.01.012
Abstract:
A brief introduction of latest development of cluster impact fusion (CIF) was presented. Beuhler, Friedler and Friedman from BNL reported to have observed (d,d) fusion when deuterated solid target of TiD, (C2D). or ZrD1.65 were bombarded by (D,O): cluster with n values between 20 and 1000, accelerated to energies of 220~325 keV. The observed fusion rates correspond to cross sections some 25 ciders of magnitude larger than the theoretical estimation. A group in Stun fold Research Institute experimentally...
Energy-dependent Barrier in Heavy-ion Induced Fusion Reaction
Liu Guo-xing, Zheng Ji-wen, Chen Ke-liang
1994, 11(1): 17-20. doi: 10.11804/NuclPhysRev.11.01.017
Abstract:
The complete fusion excitation function for several systems formed by 12C, 14N, 16O, 32S, 35Cl and 40Ar ion with some targets have been analysed by an energy-dependent bsrrier penetraction model. The potential parameters E1, V1, E2, V2, Rb and Hω have been extracted from the experimental daal. It Shows that the energy-dependent barrier penetraction model can describe sads factorily the behaviour of the change of the fusion cross section with the bombstding energy.
Progress of Study on Heavy-ion Stopping Power
Lu Xi-ting, Jin Chang-wen
1994, 11(1): 21-24. doi: 10.11804/NuclPhysRev.11.01.021
Abstract:
A review of study progress on HI stopping power from experimental and theoretical research is given. Problems to be solved are put forward.
CEBAF and Measurement of the Flavor Singlet Form Factor G°of Proton
Ma Zhong-yu
1994, 11(1): 25-28. doi: 10.11804/NuclPhysRev.11.01.025
Abstract:
The current status and scientific goal of CEBAF (The continuous Electron Beam Accelerator Facility ) are briefly presented. The project of the measurement of the flavor Singlet form factor G°of proton at C hall is outlined. A precise measurement of Parity violating asymmetry in the scattering of polarized electron from a proton target enables one to explore the Strange quark content in the proton.
Acceleration and Physics of RI Beams
Huang Ye-cheng
1994, 11(1): 29-31. doi: 10.11804/NuclPhysRev.11.01.029
Abstract(1893) PDF (917KB)(533)
Abstract:
The principle and the present situation as well as the prospects corresponded to the physics of RI beams are describe.
Studies of Low Energy Beam-Foil Spectra
Wang You-de, Yang Zhi-hu, Ma Xin-wen, Xu Qian, Liu Hui-ping, Zhao Meng-chun
1994, 11(1): 32-40. doi: 10.11804/NuclPhysRev.11.01.032
Abstract:
In this paper, we describle the experiments at IMP and the beam-foil experimental data(including spectra, lifetimes of He, N, O, Ne, Ar, Fe and Cu ions). The accuracy estimated is also given here.
Some Problems in Recent Progress of Fullerene Studies
Zhan Ke-ming, Shen Neng-yi
1994, 11(1): 41-45. doi: 10.11804/NuclPhysRev.11.01.041
Abstract:
Some problems in recent progress of Fullerene studies is discussed in this paper. They are: the mass distributions of Fullerenes,the isomers and chiral allotropes of Fullerenes, the microtubules of graphitic carbon, the growth morphology and the dynamiCs of Fullerenes, and so on. These problems are some very interesting in the Fullerenes studies.
Study of α-particle Emission in the Reaction of 20Ne+12C at 294MeV
Lu Jun, Xie Yuan-xiang
1994, 11(1): 46-49. doi: 10.11804/NuclPhysRev.11.01.046
Abstract:
Inclusive energy spectra and angutar distribution of α-particles have been measured in the reaction of 294MeV 20N bombardment of 12C target. Three sources fitting was Performed for the experimental data. The fact of α-particle emission at large angles indicates the process of target breakup.
Application of Nuclear Technology
Laser Ion Sources
Xu si-da
1994, 11(1): 50-54. doi: 10.11804/NuclPhysRev.11.01.050
Abstract:
The basic principles, important characteristics, developing plans and recent developments as well as applications in finding new nuclide on laser ion source were reviewed in this poper.
α,β-radionuclides for Radioimmunotherapy
Niu Fang
1994, 11(1): 55-56. doi: 10.11804/NuclPhysRev.11.01.055
Abstract(1513) PDF (700KB)(390)
Abstract:
The present status on exploiting radionuclides for radioimmunotherapy was briefly describedin this paper. Production and application of 211At、212Bi、 90Y、194Ir、188Reare emphasized.
Precision Determinations of γ-ray Energies
Wang Gong-qing, Tao Zhen-lan
1994, 11(1): 57-60. doi: 10.11804/NuclPhysRev.11.01.057
Abstract:
The method, main meaning and purpose of precision energy determinations with Ge(Li) or HPGe γ spectrometer are reviewed in this paper. In order to reduce the uncertainties, some specisl problems are pointed out.
Applications and Studies of Nuclear Energy & Nuclear Data File
Research on Inertial Fusion of Heavy Ions
Yang Zhi-hu, Jing Cheng-xiang, Wang Lin-xia
1994, 11(1): 61-64. doi: 10.11804/NuclPhysRev.11.01.061
Abstract:
The present researching status and the heavy ion accelerators used for inertial fusion of heavy ions are decribed in the paper.
Cross Section Measurement of 132,134,136,137Ba(n,p) and 132, 134Ba (n, Zn)
Yuan Jun-qian, Qiu Jiu-zi, Yang Jing-kang, Kong Xinng-zhong, Wang Yong-chang
1994, 11(1): 65-67. doi: 10.11804/NuclPhysRev.11.01.065
Abstract(1688) PDF (897KB)(481)
Abstract:
The cross sections of the 137Ba (n, p) 137Cs, 136Ba (n, p)136Cs, 134Ba (n, p ) 134Cs, 132Ba (n, p) 132Cs, 134Ba(n, 2n) 133Ba and 132Ba(n, 2n ) 131Ba reactions have been measured by using the activation method relative the cross sections of 54Fe(n, p ) 54Mn and 54Fe(n,a)51Cr reactions at the neutron energy of 14. 2 ±0. 1MeV. The results obtained are compared with the data on hand.