1997年 第14卷 第2期
用推转玻尔－莫特森哈密顿量研究了Ａ～１９０区２０个核的５５条超形变带．通过拟合实验测得的Ｅ２跃迁能量值，确定了各带的能级自旋，得到了质量参量Ｂ１和硬度参数Ｃ０．Ｂ１和Ｃ０都显示出明显的奇偶性. superdeformed bands in 20 nuclei of the A ～190 region are studied with formulas derived from the Cranking Bohr Mottelson Hamiltonian. From fitting the experimental E γ , the level spins are determined and mass parameter B 1 and rigidity parameter C 0 are obtained. The B 1 and C 0 values show clear odd even effects.
核反应中，核温度参量与核反应中的轻粒子的能谱、粒子非稳态布居及同位素产额有直接的依赖关系，通过有关物理量的测量可以实现核温度参量的提取. In this paper we present many observables of the nuclear reactions related to the temperature parameter,and several methods which devoted to the establishment of the nuclear temperature therometer.
介绍了近年在ＨＩＲＦＬ注入器ＳＦＣ上所进行的和正在进行的一些改进工作和取得的效果．主要涉及中心区的重新设计加工，研制新的聚束器系统和新的轴向注入束运线，以及对ＳＦＣ真空系统的改造. The article presents the new development at SFC, the HIRFL injector cyclotron. It concerns the new central region, the new buncher system, the new axial injection line, and the improvement of SFC vacuum system. The results and the expected results are given after these modifications are made. Especially it introduces the half frequency bunching method to increase the longitudinal matching efficiency between the injector and the main cyclotron, and the special treatment for the space...
随机冷却系统有助于提高兰州重离子冷却储存环（ＣＳＲ）中束流累积效率，减小束流发射度．首先通过Ｆｏｋｋｅｒ－Ｐｌａｎｃｋ方程的建立，解出了某种初始分布下粒子分布的时间演化结果，并模拟了冷却过程；然后结合ＣＳＲ物理设计参数，计算了部分典型被加速离子的冷却时间，同时比较了电子冷却和随机冷却的冷却力，得出了一些结论；最后提出了硬件设计方案. Stochastic cooling system in Cooling Storage Ring (CSR) at Lanzhou will help to cool beam phase space and increase the accumulation ratio and efficency. In this paper, a Fokker Planck eqution is described and used to simulate cooling process.According to the main parameters of CSR,cooling time of some typical ions has been calculated and the cooling forces of electron cooling and stochastic cooling are compared. Finally, A hardware designing plan is proposed.
为处理超变形核的转动谱，提出了一个简单的转动模型，即：冻结振动自由度，把超变形核看成是一个刚性转子．将转动哈密顿量在轴对称陀螺波函数所张开的空间中对角化时，进一步考虑了Ｓｉｇｎａｔｕｒｅ为好量子数，重新计算了Ａ～１９０区偶偶核的超变形带，自旋指定与ａｂ公式自旋指定仍然一致．并计算了Ａ～１５０区１５２Ｄｙ的超变形带，结果也与实验值拟合得很好，但自旋指定与ａｂ公式差异较大.To deal with the SD bands, a single rotational model is proposed, i . e. freeze the degree of vibrational freedom, and regard the SD nuclei as a rigid rotor. Also, the Signature is considered to be a good quantum number . 10 SD bands were calculated, all of the assigned nuclear spins are equal to those determined by ab formula. 190 Hg and 152 Dy were also calculated, but the results of assigned nuclear spins are different to the ones of ab formula.
论述了高能中微子与核乳胶碰撞中，归一化的两粒子相对赝快度分布，和平均最大簇射粒子数密度与多重数的关联. In high energy neutrino emulsion collisions, the normalized distribution of two particle relative pseudorapidity and the correlation between the mean maximum number density of shower particles and multiplicity are investigated.
简要叙述了近年来重离子束治癌的最新进展，特别是美国、日本、德国和欧洲一些国家的动态，并对此作了一些简短的评论．根据国际动向和我国国情，提出了几点思考. Newest progress in cancer therapy with heavy ion beam are briefly described in the paper, especially, the trends in United States, Japan, Germany and some European countries in recent years. Furthermore, some brief reviews for the trends are presented. According to the international trends and the potential of our country, our several considerations are proposed.
简单介绍了国内外关于快重离子低温辐照非晶态合金引起的各向异性的塑性形变研究新进展，并对该领域今后的研究方向作了展望. Present status in study of fast heavy ion beam induced plastic deformation in amorphous alloys is briefly reviewed. Further research trend and relevant problems are also discussed.
电解过程中钯电极表面的尖端效应和磁自收缩现象是产生非平衡条件的重要因素．实验表明，非平衡态对于冷核聚变来说是至关重要的．为了有较深刻地理解冷核聚变机制，对氘在金属中的结构和分布、电极表面的电化学双层、尖端电子发射和电流的磁自收缩等现象要作深入的研究.In this paper,the pin point effect and the magnetic self pinch of electrolysis are suggested to be the important factors to produce conditions that are far from equilibrium and are essential for cold nuclear fusion. Further studies of the structural and electronic properties of deuterium in bulk palladium, the behaviours of electrochemical double layer,and the localized emission sites on surface protrusions of the electrode should be extensively carried out for understanding the mechanism ...
评述、分析了氘气放电条件下Ｘ射线产生的机制与能谱，指出了在氘气放电条件下，由于引发了核反应而产生γ射线和中子．它对Ｘ射线能谱分析带来影响，同时也为核聚变的发生提供了间接证据.The following opinions were given in this paper. It is probably creditable that as X-ray with single energy was produced in discharge process with D2 gas
介绍了通过探测中子辐射，用被动方法研究了包括模拟核弹头装置在内的各钚组合系统的可探测性和中子能谱等内容．用主动方法研究了核材料铀的裂变缓发中子测量技术和区分核与非核材料的方法．讨论了进一步开展的核查技术实验.In this paper,by neutron radiation detection with the passive method, the study on detectability, neutron spectra, etc. for the plutonium combined systems including the stimulated nuclear warhead assembly are introduced. The sutdy on technique of measuring fission delayed neutrons from uranium materials and the method of distinguished nuclear from non nuclear materials with the active method are described. Further experiments on verifying technique are also discussed.
简述了加速器驱动的洁净核能系统的概念，评论了国际上几个重要研究计划的状况和进展，对我国开展相关的研究提出了建议.The concept for the clean nuclear power system driven by accelerator is presented. The status and progresses of several projects in the world are reviewed. The suggestions for the work to be done in China are proposed.
介绍了高能物理与核物理领域引入面向对象软件技术的背景，报道了ＣＥＲＮ和美国的几项重要计划的进展情况，对有关技术的优劣与前景进行了评价. The background for developing object oriented software technique in high energy and nuclear physics has been introduced. The progress made at CERN and US has been outlined. The merit and future of various software techniques have been commented.