角分布

Our studies showed that the PADs in few-cycle laser pulses were determined by the kinetic energy of photoelectrons, the absolute phase of the carrier wave, and the ellipticity and the duration of the short pulses.

我们用三模的激光场来模拟超短激光脉冲，对超短激光脉冲与惰性气体原子的相互作用进行了系统的研究，成功地展示了绝对相位对光电子能谱及角分布的影响。

The scheme makes use of strict collimation of the beams, full solid angle detection of the reaction products with a x y position sensitive ΔE E counter telescope, mixing trigger and pileup rejection to carry out the measurement of angular distribution under low beam intensity.

采取次级束的严格准直、反应产物的两维位置灵敏全立体角探测、抗脉冲堆积和混合触发电子学线路等一系列措施，成功地实现了低流强条件下反应角分布的测量。

In chapter 3, the angular distributions of SpE decay rate of a two-level atom placed in the multi-layered structure is investigated.

论文的第三章主要研究了由一维多层结构构成的微腔中二能级原子自发衰减的角分布。

So, the study on circumferential δ〓C of tree rings is very significative.

因此，研究树轮δ〓C值角分布具有与年际变化同等重要的地位，值得深入研究。

It is found that the angular distributions of electrons are varied by changing the relative phase between the bichromatic laser field, they show a strong phase dependence and also they appear inversion asymmetry, jet and broadding phenomena.

研究发现光电子角分布有强烈的位相依赖关系，且呈现出反演不对称性、喷射结构和展宽结构等现象。

Using a nonperturbative scattering theory developed by Guo,Aberg and Crasemann the angular distributions of electrons in above threshold ionization of Krypton atoms irridated by a bichromatic phase-controlled laser field of linear polarizations is studied. The bichromatic phase-controlled laser field is composed of a sequence of identical one-cycle laser pulses.

采用基于Guo， Aberg 和Crasemann发展的强激光场中的非微扰量子散射理论，研究了线偏振双色激光场中氪原子阈上电离的光电子角分布，双色激光场由一系列相同的单周期激光脉冲组成。

The HIRFL (heavy ion research facility in Lanzhou)will be used as the injector. For the shielding design of CSR, the secondary neutrons due to the ion beam loss,their spectra and angular distributions were estimated based on the experimental results. The dose equivalent outside the shielding surface and in the surrounding environment and the neutron skyshine dose equivalent were also estimated in this study.

为了CSR的屏蔽设计，本文利用现有的实验数据计算了由于束流损失产生的中子及其能谱、角分布，同时也估算了屏蔽体外表面的中子剂量、环境中子剂量及天空返照中子剂量。

The differential cross section, the polarisation and the spin-rotationparameter in elastic scattering of 180 MeV antiproton by 12C are calculated by means ofGlauber s multiple scattering theory and Pauli-correlated wavefunction .

在Glauber多重散射理论近似下，采用泡里关联的核波函数，使用一种唯象的湮灭势，对180MeV的在12C上的弹性散射微分截面，极化角分布和自旋旋转参数进行了计算。

Since the polarization of J~p = 1/2~+ hy-peron can be easily determined be measuring the angular distribution of its weak decay-products, the measurement of hyperon polarization becomes an important aspect of high energy polarized experiment.

由于弱衰变的J~P=1/2~+超子的极化可以比较方便地通过其衰变产物的角分布来确定，对超子极化的研究成为高能极化实验的一个重要内容。

The Ba atom is a typical two-electron atom, whose autoionization spectra and angular distributions of ejected electrons from autoionizng states are significant for understanding the complex structures and physical mechanism of the alkaline-earth atoms.

Ba原子作为一种典型的双电子原子，其自电离态的光谱和弹射电子角分布的特性研究，对人们认识原子的复杂结构和内部动力学过程具有重要的科学意义。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。