1) Reaction cross section
反应截面
1.
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
2.
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 。
3.
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。
2) cross section
反应截面
1.
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
2.
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
3.
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
3) Reactive cross section
反应截面
1.
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。
4) reaction cross-section
反应截面
1.
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。
2.
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 。
5) total reaction cross section
反应总截面
1.
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。
2.
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 % 。
3.
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 。
6) cross section
核反应截面
1.
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。
2.
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。
3.
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。
补充资料：核反应截面
| 核反应截面 nuclear reaction cross section of 表示入射粒子和靶核之间发生某一特定核反应概率大小的物理量。核反应过程是一种概率性过程，满足能量-动量守恒的核反应只以一定的概率发生，描述此核反应过程概率的量就是核反应截面。设单位时间内发生指定核反应数目为n，薄靶（没有遮蔽 ）的核数为N，单位时间打在单位面积上入射粒子数为I，则一个入射粒子与一个靶核发生指定核反应的概率，即反应截面σ为 
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
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