reaction cross-section是什么意思

用法例句

Full quantum mechanical studies of the H+H_2 reaction cross section;

H+H_2反应截面的全量子力学研究

In the framework of the extended Glauber theory, we studied the reaction cross section for the halo nucleus 14 Be scattering on a target 12 .

计算了不同能量下14Be,12 Be与靶核12 C散射的反应截面 ,并与实验结果进行比较 ,14Be的两个中子采用具有晕中子密度分布的理论计算与实验符合较好 ,而采用不具有晕中子密度分布的结果与实验值相差较大 。

Based on the continuum discretized coupled channels (CDCC) theory,with the suitable initial values and boundary conditions,as well as the P3C5 algorithm to solve the coupled equations,a new code CDCCOM with higher calculation precision is written to observe the deuteron breakup effects on elastic scattering angular distributions and reaction cross sections.

为研究氘核的破裂效应对弹性散射角分布和反应截面的影响,基于连续离散化耦合道(CDCC)理论编制了程序CDCCOM。

14MeV neutron reaction cross sections measurement of ~(197)Au and other nuclei using activation method;

活化法测量~(197)Au等核素的14MeV中子反应截面

Measurement of cross sections for ~(172)Yb(n, p)~(172)Tm, ~(173)Yb(n, p)~(173)Tm, ~(170)Yb(n, 2n)~(169)Yb and ~(176)Yb(n, 2n)~(175)Yb reactions induced by 14.8 MeV neutron;

14．8MeV中子引起的~(172)Yb(n,p)~(172)Tm,~(173)Yb(n,p)~(173)Tm,~(170)Yb(n,2n)~(169)Yb和~(176)Yb(n,2n)~(175)Yb的核反应截面测量

Measurements of the ~(203)Tl(n,2n)~(202)Tl cross section in the neutron energy range of 13.5～14.8 MeV;

13.5～14.8 MeV能区中子引起的~(203)Tl(n，2n)~(202)Tl反应截面的测量

The relative translational energy and reactive cross section σ_r and the effect of relative translational energy on reaction probability are studied, and the microscopic mechanisms of the r.

得到了该反应的产物分布情况和各通道之间的竞争,研究了相对平动能与反应截面的关系以及相对平动能对反应几率的作用,同时对该反应的微观机理也作了一定的探讨。

The reaction probability,the reaction cross-section and the thermal rate constants at T=300,500,and 700 K for the reaction have been evaluated,and it is indicated by comparison that the thermal rate constants calculated in this work agree well with the experimental data.

文中计算了该反应的反应几率、反应截面以及在T=300、500、700 K时的热速率常数。

The reaction cross-section of ~ 93Nb(n,2n)~ 92mNb was measured by activation method in the neutron energy range of 13.

用活化法以 2 7Al(n,α) 2 4Na反应截面为中子注量标准 ,对 14 Me V能区中子引起的 93 Nb(n,2 n) 92 m Nb反应截面进行了测量 。

The total reaction cross sections for ~(11)Li at energies range from 25 to 45MeV/u on Si target have been measured by using the transmission method.

实验采用透射法测量了25—45MeV/u的~(11)Li在~(28)Si靶上的反应总截面。

In the theoretical calculation of total reaction cross section, the results can fit the experimental data very well at high energy, but they are about 10%—20% lower at intermediate energy.

在对反应总截面的理论计算中 ,现有的理论计算值与实验数据在高能区可以很好的符合 ,但在中能区理论值低于实验值约 10 %— 2 0 % 。

The measurement of total reaction cross section is of great importance in studying the structure and reaction mechanisms of exotic nuclei produced by radioactive nuclear beam (RNB).

介绍了用透射法测量中能区2 0 Ne打9Be靶碎裂产生的次级束与Si靶作用的核反应总截面的方法 ,以及实验的探测器布局、实验过程和实验结果 。

This article analyses the two methods of calculating nucleon-nucleus cross section,points out their characteristics and presents a new idea for combining tow methods so that we can find a new way to calculate the nucleon-nucleus cross section for whole energy range.

通过对核子-核反应截面的两种计算方法进行对比和分析,指出各自的特点和计算中存在的困难,在此基础上,提出将两种计算方法结合起来的设想,希望能解决整个能区内核子-核反应截面的计算问题。

For certain nuclear reaction,we can get cross section of resonant peak easily in the experiment.

理论计算值和实验结果在一定程度上符合的很好,这说明了选择共振隧穿模型是计算有明显共振峰的核反应截面的有利工具。

The importance of theoretical calculation of cross section is analyzed.

分析了理论计算核反应截面的重要意义,利用选择共振隧穿模型对15N(p,α)12C的反应截面进行计算。

Experimental Evaluation of Cross Section for Rb(5D_J)+H_2→RbH+H Reaction

Rb(5D_J)+H_2→RbH+H反应截面的测定

This paper in troduces the relation ships of molecular configuration and reaction section.

本文介绍了分子构型与反应截面问的关系。

The fission barrier parameters for actinide nuclei were obtained by analysis and calculations of fission cross-sections and complete neutron reaction cross sections.

通过分析和计算锕系核裂变截面和全套中子反应截面获取了一组锕系核的裂变位垒参数.

The Accurate Calculation about p(?)→p(?) Differential Cross-section of the Renormalized π～0 Chain Propagator;

精确计算在π～0重整化链图传播下的p（?）→p（?）反应截面

Analytically Calculate the Cross Section of e～+e～-→μ～+μ～- by Mixed Loop-Chain Propagator in Electroweak Unification Standard Model;

电弱统一标准模型中混合圈链图传播下e～+e～-→μ～+μ～-反应截面的解析计算

cross section reactor physics computer code

反应堆物理截面计算机代码

thermal cross section reactor physics computer code

反应堆物理热中子截面计算机代码

Excitation Function Measurement of Total Reaction Cross Section at Intermediate Energy for Light Exotic Nuclei

中能轻奇异核反应总截面的激发函数测量

Analysis on the Response of Double Span Portal Steel Frame with Tampered Members under Local Fire;

双跨变截面门式钢刚架局部火灾下的反应分析

The Calculation of Triply Differential Cross Sections of (e,2e) Reaction for Hydrogen Atom by Orthogonal Method;

正交法计算氢原子(e,2e)反应的三重微分截面

Impact of Aspect Ratios on Velocity in Rectangular Micro-channel

微反应器矩形微通道截面高宽比对流速的影响

Analysis of beam with variable cross-section by using direct element-based equilibrium framework

直接基于单元平衡的变截面梁反应分析方法

(e,2e) Triple differential cross sections for the ionization-excitation of helium

氦原子(e,2e)电离激发反应的三重微分截面

Discussion on Equatortal section to be the Most Dangerous stress section of Ball

论赤道截面是钢球最危险的应力截面

SIMULTANEOUS ANALYSIS OF FISSION AND CAPTURE CROSS SECTION WITH ADLER-ADLER RESONANCE FORMULA

裂变元素中子共振反应的裂变和俘获截面的相关分析

Measurement and Analysis of the Double-differential Cross Sections of Secondary Neutrons for ~9Be at 21.65 MeV Incident Neutrons

21.65MeV中子引起~9Be反应的次级中子双微分截面测量与分析

Research on application of change from hyperbolic arch section into box section

改双曲拱截面为箱形截面技术的应用研究

The cross sections for these fusion reactions are appreciable only for incident energies above 10 KeV.

只有当入射能量超过10千电子伏时，这些聚变反应的截面才是可观的。