微分截面

Developed in 1990's, the distorted wave Born approximation methodwhich deal with the problem of three bodies of interaction in the collision betweenelectron and atom provide the theoretical criterion to calculate the tripledifferential cross section of the (e,2e) reaction.

二十世纪九十年代发展起来的处理电子—原子碰撞三体相互作用问题的畸变波玻恩近似方法，为计算原子的(e，2e)反应的三重微分截面提供了理论标准。

The inelastic scattering angular distributions of discrete levels and double differential cross sections were calculated and analyzed by using the distorted wave Born approximation theory ,the unified Hauser-Feshbach model and the exciton model.

应用得到的光学模型势参量，根据光学模型、统一的Hauser-Feshbach和激子模型理论以及扭曲波玻恩近似理论，系统计算和分析了中子与58，60Ni反应的非弹散射角分布和双微分截面，理论结果与实验很好地一致。

The calculated result of cross section agrees well with the experiment.

微分截面的计算结果与最新实验相符合。

Besides, thecontribution to differential cross section due to different opticalphonons differs from various energies of incident photos.

另外，不同光学声子对微分截面的贡献随入射光能量不同而变化。

The mechanism ofthe reaction gives the good differential cross section agreement with theexperimental results well.

在较高的入射能量的情况下，这样的反应机制给出了足够好的三重微分截面。

Toward State-resolved Differential Cross Section Measurements: Is the Effort Worth?

趋向态分辨的微分截面测量：值得费这么大的劲儿吗？英

Recent effort in this laboratory to measure the state-resolved differential cross section of elementary bimolecular chemical reactions is briefly reviewed.

简要地综述最近其实验室在用态分辨微分截面测量基元双分子化学反应方面所做出的努力。

It is shown that the value of differential cross section of 〓He from 〓He+〓Be breakup reaction is approximately two-times larger than that from 〓Li+〓C reaction at similar incident energy.

与相近能量的〓Li+〓C的破裂α碎片微分截面相比〓He的破裂α碎片的微分截增大了约一倍。

Target ; proton induced reaction ; 60Ni ; cross section ; energy spectra ; double differential cross section

质子诱发反应； 60Ni ；截面；能谱；双微分截面

For its many merits, twin gridded ionization chamber is used in the studies of and reactions.

由于屏栅电离室的诸多特点，被用于快中子核反应截面、能谱及双微分截面的测量。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。