Angular distributions for some interesting states of 12b and 13c have been experimentally measured in hb ( d , p ) and 12c ( d , p ) reactions . the density distributions , rms ( root mean square ) radii , contributions of outside nucleon , etc . , of the valence neutrons in these states are extracted by dwba ( distorted wave born approximation ) method and anc ( asymptotic normalization coefficient ) method , respectively 实验测量了11b ( d , p )和12c ( d ， p )反应中12b和13c几个感兴趣的核态角分布，分别用dwba方法和anc方法从角分布数据中抽取了各核态外层中子的密度分布、 rms半径以及外层核子的贡献等，对这两种方法作了比较。
In this paper , such three points are studied as : a ) the angular distributions of the hot electrons emission under laser irradiation at different incidence angles and at different polarization direction , the angular distribution of the hot electrons in the different energy range , and the effects of laser prepulse on the angular distributions of the hot electrons emission ; b ) the energy distribution of the hot electrons at different directions , from the metallic targets and the dielectric targets , in the different energy range of the hot electrons , and the effects of the atomic number z on the energy distribution of hot electron generated by the metallic targets ; and c ) the energetic proton emission resulting from the interaction of the us - ui laser pulse with plasma 本论文进行了三个方面的研究：第一，超热电子角分布的研究，包括不同激光入射角下超热电子的角分布；激光不同偏振态下超热电子的角分布；激光预脉冲对超热电子角分布的影响；不同能段的超热电子的角分布。第二，超热电子能量分布的研究，包括不同方位超热电子的能量分布，金属与非金属靶材的超热电子的能量分布，金属原子序数z对超热电子能量分布的影响以及不同能段超热电子的能量分布。第三，研究了超短超强激光与固体靶相互作用所产四川大学博士学位论文生的高能质子发射和能谱。
In this paper , the method of small parameter is used to calculate the multipolar expansion of gravitational radiation in classical situation , and the general expression on multipolar gravitational radiation is obtained . then the angle distribution characters in an arbitrary direction are given . this expansion method can avoid the higher order tensors when dealing with the gravitational radiation higher than quadrupole 本文采用小参数法作为经典引力辐射的研究方法对引力辐射作多极展开，得到各极引力辐射的一般表达式，并给出了沿任一方向引力辐射的角分布的严格证明，这种展开法在处理四极以上的高阶引力辐射时却可以不涉及更高阶的张量计算。
The lifetime of the first excitation state of 64cu on the same experiment published was i = 22 ? 9ps and t = 29 . 8 ? . 4ps respectively . multipole mixing ratio ( 8 ) of the first excitation state of 64cu , that p . w . green had studied through the angular distributions of de - excitation y rays following the 64ni ( p , ny ) reaction was determined to be s = 0 . 12 ? . 04 至于多极混合比，在1976年pwgreen等人同样利用以nio ， fly ）反应，通过退激y射线角分布测量，给出了时cll第一激发态的多极混合比为： 6二0l士0刀4 。
The reflector can increase the neutron flux obviously and the main processes of the neutron yield in reflector are spallation reaction induced by energetic hadrons and ( n , 2n ) reaction . when the moderator height is equal to the distance between the upper part and the lower part of the split target , the total neutron flux of the split target will be higher by 20 . 1 % than that of the integral one . secondly , the high - energy neutron escaping from the target will enter into the moderator and be slowed down 得到经水慢化器慢化后，中子通量在慢化器厚度与高度方向上的分布；比较了水与液态氢的慢化能力以及中子在水、液态氢、液态甲烷这三种慢化器慢化后的能谱；在csns的靶站设计中，引出慢中子的导管不完全位于慢化器中子引出面的法线方向上，因此进一步计算了中子通量角分布。
Based on the theory of glow discharge , the angle distribution of electron and the recombination process are simulated by adopting monte carlo method . the doping process of n - type diamond film is investigated by this method for the first time . the results indicate : 1 ) the scattering angle of electrons near the substrate is mainly lange - angle , which is helpful to grow diamond film over a large area when glow discharge is kept ; 2 ) after considering the recombination process , the number of particles distribution is provided 主要结果如下： ( 1 )研究了电子在雪崩碰撞和分解电离后的角分布情况，结果表明基片附近电子的散射以大角散射为主，在维持辉光放电的条件下，较高的偏压和工作气压对金刚石的横向连续成膜是有益的； ( 2 )考虑了低温合成金刚石薄膜过程中电子与各种碎片粒子的复合过程，给出了不同的复合系数情况下的粒子数分布，结果显示各种碎片粒子的分布随复合系数的变化会出现粒子数分布的涨落现象。
It takes advantages of modern computer to fit all the experimental information , hence a very powerful pwa method . in this thesis , we use this method to analysis hadrons japdecay model jap - > ( ptt - tr + and j p radioactive decay model based on the pwa amplitude , we received mass distribution of two outgoing pious and angle distribution of the outgoing particles using the cern program . finally we compared tow different form factors ( barrier factors and gauss factor ) wh ich were always used the calculating of pwa amplitude 本文采用这种分析方法给出的j强衰变j ~ - ~ +和j粒子辐射衰变j ~ - ~ +分波振幅公式，利用cern的蒙特卡罗模拟程序绘出了末态粒子的角分布和不变质量分布，对分波分析中常用的两种动力学形状因子(中心位垒因子和高斯压低因子)进行了研究比较。
The fourth chapter lists out partial amplitude of using the pwa method described in chapter four , then we use cern programs to calculate out and plot angular distributions and mass distribution , finally we compare the influence of different form factors . the fifth chapter adopts the same process of the third chapter to analysis the decay the last chapter summaries our work and prospects further studying fields based on this thesis 第四章利用第三章描述的方法对j ~ - ~ +衰变进行了分波分析，然后用cern程序库中的蒙特卡罗模拟程序和paw软件对各个分波振幅进行了数值计算和绘图，在给出各种分波成分末态粒子不变质量分布和角分布的基础上，分析了两种形状因子对不变质量分布的影响。
From the model study of the fractal random rough surface , we acquire one dimensional ? two dimensional fractal random rough surface model with fractal theory ; 2 . the calculation of the scattering field of light ; the establishment of the scattering light ’ intensity model , and the number calculation of the intensity distribute ; 3 . the study on the laser radar cross section of one - dimensional fractal rough surface target ; and the number calculation of the scattering intensity of two - dimensional fractal the rough surface target ; 4 . through shadowing effect , we analysis light scattering characteristic of fractal rough surface 本论文利用分形理论得到一维?二维分形随机粗糙表面模型,研究光在一维?二维分形粗糙表面的光散射特性,主要从以下四个方面分析: 1 .自仿射分形随机粗糙表面模型探讨,采用分形理论得到一维?二维分形随机粗糙表面模型; 2 .分形粗糙表面散射光场的计算和粗糙表面散射光强角分布的模型建立和数值计算; 3 .一维分形粗糙表面目标的激光雷达后向散射截面lrcs研究和二维分形粗糙表面目标散射强度数值计算; 4 .引入遮蔽效应分析分形粗糙表面光散射特性。
