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1994年  第11卷  第1期

核物理
量子混沌研究中的几个疑难问题
徐躬耦
1994, 11(1): 1-4. doi: 10.11804/NuclPhysRev.11.01.001
摘要:
本文对量子混沌研究中的几个疑难问题进行了讨论,着眼于量子体系状态的整体性质,从量子正则变换不变性质的破坏来阐明量子混沌运动的发生,指出量子混沌与经典混沌间存在着明确的对应. 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.
反质子物理
李杨国
1994, 11(1): 5-11. doi: 10.11804/NuclPhysRev.11.01.005
摘要:
本文介绍反质子与核子和与原子核碰撞后各种物理现象.它与核子的散射获得的位势是吸引势和吸收型,与核的光学势是强吸收到.湮没后产生众多的介子和重子.以及在高能下湮没产生奇特性粒子、带粲的介子、重子.并探索获得混杂子、在核中存在反质子、其它新粒子的可能性. 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.
团簇冲击核聚变研究现状
林森浩, 沈文庆
1994, 11(1): 12-16. doi: 10.11804/NuclPhysRev.11.01.012
摘要:
本文简要介绍了团簇冲击核聚变研究的发展和现状,同时也介绍了各种理论解释模型.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...
重离子全熔合反应中的能量相关位垒
刘国兴, 郑记文, 陈克良
1994, 11(1): 17-20. doi: 10.11804/NuclPhysRev.11.01.017
摘要:
本工作采用能量相关的位垒穿透模型分析了12C、14N、16O、32S、35Cl和40Ar等重离子全熔合激发函数数据,提取了势函数E1、V1、E2、V2、Rb和hω.数据分析表明,能量相关的位垒穿透模型能够满意地复现全熔合截面随能量变化的行为. 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.
重离子阻止本领研究的进展
卢希庭, 金长文
1994, 11(1): 21-24. doi: 10.11804/NuclPhysRev.11.01.021
摘要:
我们从实验和理论两个方面对于阻止本领问题的研究进展进行了评价,并提出了需要解决的问题. A review of study progress on HI stopping power from experimental and theoretical research is given. Problems to be solved are put forward.
CEBAF和质子G°实验研究
马中玉
1994, 11(1): 25-28. doi: 10.11804/NuclPhysRev.11.01.025
摘要:
本文简单介绍了美国CEBAF(连续电子束流加速器)的近况和研究方向,以及C厅将展开的研究核子内S夸克成分的极化电子与质子散射宇称破坏不对称性测量的实验,即质子味单态电形状因子G°实验. 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.
放射性束加速器与放射性束物理(续完)
黄业成
1994, 11(1): 29-31. doi: 10.11804/NuclPhysRev.11.01.029
摘要:
本文论述放射性束加速器的原理、国际现状和相应学科的发展前景. The principle and the present situation as well as the prospects corresponded to the physics of RI beams are describe.
低能束箔光谱研究
王友德, 扬治虎, 马新文, 徐谦, 刘惠萍, 赵梦春
1994, 11(1): 32-40. doi: 10.11804/NuclPhysRev.11.01.032
摘要:
本文简要介绍近代物理所开展的低能束箔光谱学研究情况以及获得的实验数据(包括N、O、Ne、Ar、Fe和Cu等的激发光谱和能级寿命),并讨论了实验的精度. 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.
Fullerene研究最新进展中的几个问题
詹克明, 沈能一
1994, 11(1): 41-45. doi: 10.11804/NuclPhysRev.11.01.041
摘要:
本文论述了Fullerene研究最新进展中的几个问题.它们是:Fullerene的质量分布,Fullerene的异构与手征性异构体,Fullerene石墨微碳管,Fullerene生成形态学与动力学…….在Fullerene研究中,这些都是令人感兴趣的问题. 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.
294MeV 20Ne+12C出射α粒子的研究
卢俊, 谢元祥
1994, 11(1): 46-49. doi: 10.11804/NuclPhysRev.11.01.046
摘要:
实验测量了294MeV20Ne+12C反应中出射α粒子的单举能谱及角分布,用三源模型拟合了实验数据,大角度出射α粒子的实验结果表明了靶核碎裂(breakuP)机制的存在. 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.
核技术应用
激光离子源──寻找与研究新核素的新工具
徐四大
1994, 11(1): 50-54. doi: 10.11804/NuclPhysRev.11.01.050
摘要:
本文评述激光离子源的基本原理、主要性能、研究方案和近年来的发展,以及在寻找与研究新核素中的应用. 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.
用于放射免疫治疗的放射性核素
牛芳
1994, 11(1): 55-56. doi: 10.11804/NuclPhysRev.11.01.055
摘要:
本文简要综述用于放射免疫治疗的放射性核素的开发现状,重点介绍了211At、212Bi、 90Y、194Ir、188Re的生产与应用. The present status on exploiting radionuclides for radioimmunotherapy was briefly describedin this paper. Production and application of 211At、212Bi、 90Y、194Ir、188Reare emphasized.
γ射线能量的精确测定
王功庆, 陶振兰
1994, 11(1): 57-60. doi: 10.11804/NuclPhysRev.11.01.057
摘要:
本文论述了用Ge(Li)和HPGeγ谱仪系统,精确测定γ射线能量的方法、意义和用途,指出了减小测量误差应该注意的问题,综合了作者测量的结果.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.
核能研究应用与核数据库
重离子惯性聚变的研究
杨治虎, 景成祥, 王灵霞
1994, 11(1): 61-64. doi: 10.11804/NuclPhysRev.11.01.061
摘要:
本文描述了重离子惯性聚变的研究现状和用于重离子惯性聚变的重离子加速器. The present researching status and the heavy ion accelerators used for inertial fusion of heavy ions are decribed in the paper.
132,134,136,137Ba(n,p)、132,134Ba(n,2n)反应截面测量
袁俊谦, 仇九子, 杨景康, 孔祥忠, 王永昌
1994, 11(1): 65-67. doi: 10.11804/NuclPhysRev.11.01.065
摘要:
本文叙述14.2±0.1MeV中子能量的137Ba(n,p)137Cs、136Ba(n,p)136Cs、134Ba(n,p)134Cs、132Ba(n,p)132Cs、134Ba(n,2n)133Ba和132Ba(n,2n)131Ba等反应截面的测量,测量方法采用以54Fe(n,p)54Mn和54Fe(n,a)51Cr反应为标准截面的相对活化法,并用现有的数据对本结果进行了比较. 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.