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161.
Based on the facility of the Shanghai Laser Electron Gamma Source (SLEGS), the transmutation for nuclear wastes such as 137Cs and 129I is investigated. It is found that nuclear waste can be transmuted efficiently via photonuclear reaction triggered by gamma photons generated from Compton backscattering between CO2 laser photons and 3.5 GeV electrons. The nuclear activities of 137Cs and 129I are evaluated and compared with the results of transmutation triggered by bremsstrahlung gamma photons driven by ultra intense laser. Due to the better character of gamma photon spectrum as well as the high brightness of gamma photons, the transmutation rate of Compton backscattering method is much higher than that of the bremsstrahlung method. 相似文献
162.
Some experimental techniques and theoretical analysis on unbound nuclei structure study are briefly introduced in this article. The unbound nuclei structure investigation can inspect the reliability of theoretical calculation, and is also important to extend the modern nuclear structure model to exotic nuclear regions. With the recent development of radioactive Ion Beam (RIB) facility and some new experimental methods, the structure of unbound nuclei near drip line can be studied in experiment. 相似文献
163.
We calculated the relative abundances of charge hadron, KS0, Λ and Λ in the near-side and away-side cones correlated with triggered high pT particles in minimum bias in p+p collisions at √sNN=200 GeV in the PYTHIA model. From the quark and gluon jet events in the PYTHIA model, we have found that the particle yields' different splitting. So the di-hadron correlation in the quark jet events and gluon jet events are also presented. And the particle charge dependance of the di-hadron correlation is extracted from the PYTHIA model. The di-hadron plus and di-hadron minus correlations are similar in the near-side (Δφ~0), but in the away-side, the di-hadron minus correlation seems to be lower. The Hadron-KS0 and -Λ+Λ correlations seem to be differet. We have used a double-Gaussian function to fit those correlation functions and compared the fit parameters. 相似文献
164.
We investigate the applicability of the independent atom model (IAM) to elastic electron scattering from complex polyatomic molecules, namely C4H10 and C6H6, in the energy range 100-1000eV. The cross sections of the elastic electron scattering are calculated by employing the IAM together with the relativistic partial waves. The incorporation of both the modified absorption potential and the extended structural factor in the IAM makes the elastic differential cross sections and momentum transfer cross sections have a good agreement with the available experimental data. The present simple model seems to be insensitive to the complexity of the target molecules so that the proposed procedure can be quite useful for calculation of electron scattering from bio-molecules. 相似文献
165.
介绍了原子核高K同质异能态潜在的应用价值及国内外研究的进展。 总结了形成同质异能态的3种主要物理机制。 说明了高K同质异能态的应用原理是将其激发到更高的不稳定的K混合态上, 再发生诱发退激, 形成γ瀑, 释放其存储的能量。 同时又介绍了K混合态的3种主要产生机制。 最后分析了178Hfm2诱发退变的实验, 讨论了这些实验的区别和与角动量投影壳模型计算结果的差异。The nuclear isomer states have great potential value of application. The important experimental and theoretical researches are presented here. There are three kinds of physics mechanism for the formation of the isomer states. The principle of releasing the energy stored in the isomer is to excite it to higher states, K mixing states, which can spontaneously decay to the ground state forming the γ cascade. After introducting the three ways to form the K mixing states, we analyzed experiments on the most prospective isomer 178Hfm2, discussed the key differences between these experiments and suggested that the Projected Shell Model (PSM) can be helpful to confirm the occurrence of the K mixing states and would work out characteristics of the induced decay. 相似文献
166.
给出求解复色孤子半高宽的近似方法,该方法对分析复色光束的演化提供一个定性的基础 .进一步的数值模拟结果表明,当入射双曲正割光束满足复色光伏孤子半高宽与中心光强的 关系时,双曲正割光束在晶体中的传播就非常接近孤子,表明复色光伏孤子对于小的微扰是 稳定的.此外,复色光伏孤子对于小的轴偏离具有较好的稳定性;复色光伏孤子对因温度微 扰引起折射率变化的情况也具有较好的稳定性.一般情况下,初始光强分布接近复色光伏孤 子光强分布的两束光的光强在传播过程中不断地起伏,形成呼吸状结构,但如果入射面处的 光强明显偏离孤子的光
关键词:
复色光伏空间孤子
稳定性 相似文献
167.
关于《一阶非线性时滞微分方程的线性化振动性》一文的注 总被引:1,自引:0,他引:1
本文指出了文[1]存在的两个问题.一是将条件(4)改为(4)′后定理不成立;二是引理6不正确. 相似文献
168.
169.
170.
本项工作是用ABAQUS程序对受瞬间压力作用的自由圆锥壳做数值模拟解,求得了在几毫秒时间进程中较为详细的物理图象。 相似文献