弹性散射

Ten parameters of Doyle-Turner expression of scattering factors have been accurately fitted, which include the elastic scattering factors of 98 elements crystals, TDS absorptive scattering factors of 43 elements crystals and absorptive atomic scattering factors of 17 important materials with the zinc blende structure.

对CCD相机的几何畸变进行了矫正。通过对高能电子衍射理论及散射机制的阐述，一方面利用模拟退火算法对原子的弹性和非弹性散射因子进行含10个参数的Doyle-Turner表示的拟合。

Inelastic neutron scattering spectra of YBa2Cu3O(6+δ) sample with several different oxygen contents δ have been obtained in the energy range from 10 to 150 meV at a new wide angle (~30°) Be-filter detecter spectrometer, CIAE,Beijing.

在中国原子能科学研究院新建的宽角(～30°)Be过滤探测器中子非弹性散射谱仪上，在入射中子能量从10直至150meV的范围内，测量了几种不同氧含量的YBa_2Cu_3O_(6+δ)样品的中子非弹性散射能谱。

The theoretical prediction of the differential cross section is obtained. Unlike 13C, there are no experimental data available at present to examine this prediction.

假设13N是单粒子的2p态的结构，用Glauber多重散射理论计算了1GeV的质子在13N上弹性散射的微分截面，研究了13N的类晕结构。

Basing on the view point of the α particle structure of the 12 c nucleus,the form factor and the transition form factor of the α particle in 12 c nucleus are as inputs,the inelastic scattering of pion-12c for 2+(4.43 mev) and 3-(9.64 mev) at tπ=150,180 mev are studied within glauber scattering theory.the calculated differential cross sections show better agreement with the experimental data.

从12c原子核的α粒子结构观点出发，应用12c原子核内α粒子的形状因子和跃迁形状因子，在glauber散射理论框架下，计算了共振区内能量为tπ=150，180 mev，π-12c的2+(4.43 mev)和3-(9.64 mev)非弹性散射微分截面。理论结果与实验较好8 t tt 8.c o m 地符合。

Elastic scattering The scattering of an electron is described as elastic if a negligible amount of energy is lost by the primary electron in the process.

弹性散射散射的电子被描述为弹性，如果在这一过程中初级电子丧失了微量能量。

By combining the {spdf} interacting boson model and the Eikonal approximation theory, we proposed an approach descibing the inelastic scattering in which the nucleus is excited from the ground state to a negative parity state by the medium energy hadron. In this scheme it is easy to determine the deformation parameter of the collective excited state with negative parity, the form factor and the scattering cross section.

通过把{spdf}相互作用玻色子模型和Eikonal近似理论相结合，我们提出了描述中能强子使核激发到负宇称态的非弹性散射的方案，给出了负宇称激发态的形变参数及散射的形状因子和散射截面。

A look into his scientific pursuit from Rutherford α-particle scattering experiment

这种弹性散射作用产生的出射粒子方向与入射方向的夹角接近180°，最初由卢瑟福作了理论分析和实验测量，故亦称卢瑟福背散射。

Elastic and inelastic differential and integral cross sections for low-energy vibrational excitation of H2 by electron impact are studied with exact exchange. The resulting coupled integrodifferential equations are solved using a combination of linear-algebraic and R-matrix-propagator techniques.

严格交换势用于研究低能电子与H2分子的弹性和非弹性散射截面，线性代数方法和R-矩阵传播子相结合求解基于振动密耦合方法的积分-微分耦合方程组，由此得到收敛的散射微分截面和积分截面。

Calculations show that:nonreaction is the major process at low collision energy;vibrational excitation facilitates reaction;the inelastic nonreactive cross section is about three times larger than reaction cross section under 10-4eV collision energy.

计算结果表明：在低碰撞能下，散射主要以非反应过程为主；振动激发有利于反应的进行；在小于10-4eV碰撞能下，非反应非弹性散射截面和反应截面的比值约为3。

They are compound nucleus statistical process and two nonstatistical process ,i.

所考虑的反应机制有复合核统计过程和复合核弹性散射道中的辐射俘获及形状弹性散射道中的直接-半直接辐射俘获两种非统计过程。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了