期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

微分散射截面测量中气压效应的修正 被引量：1

Correction of Pressure Effect for Measurement of Differential Cross Section
下载PDF
导出
摘要 介绍了微分散射截面测量过程中的气压效应 ,通过深入分析得出了二次散射系数E(θ)与零度角的强度A0 成正比 ,随散射角θ的增加而增加以及它的值可正可负 .通过与实验的对比 ,证实了前两条结论 ,并指出可把该结论用于指导实验 . The pressure effect for the measurement of differential cross section is introduced and analysed in detail. Three conclusions are obtained: the double scattered coefficient E(θ) is proportional to the strength A 0 of the excitations measured at 0°; E(θ) increases with the increasing of scattered angle; the values of E(θ) can be positive or negative. The front two conclusions are tested by experiment, and it is pointed that they are helpful to the measurement of differential cross section.
作者 朱林繁 刘小井 李文斌 苑震生 成华东 钟志萍 徐克尊
机构地区 中国科学技术大学选键化学重点实验室 中国科学院研究生院物理部
出处 《原子核物理评论》 CAS CSCD 北大核心 2002年第2期150-152,共3页 Nuclear Physics Review
基金 国家自然科学基金资助项目 ( 10 1340 10 10 0 0 40 10 ) 中国科学技术大学青年基金资助项目~~
关键词 微分散射截面 测量 气压效应 一氧化碳 二次散射系数 动力学 入射粒子 靶粒子 结构特性 differential cross section pressure effect CO
分类号 O561.5 [理学—原子与分子物理]
  • 相关文献

参考文献3

  • 1[1]Zhu L F,Zhong Z P,Liu X J,et al.Absolute Generalized Oscillator Strength Distributions for the Continuum Region of Helium[J].J Phys,1999,B32:4 897.
  • 2[2]Xu K Z,Feng R F,Wu S L,et al.Absolute Generalized Oscillator Strengths of 21S and 21P Excitations of Helium Measured by Angle-resolved Electron-energy-loss Spectroscopy[J].Phys Rev,1996,A53:3 081.
  • 3[3]Zhong Z P,Feng R F,Xu K Z,et al.Absolute Generalized Oscillator Strengths for the Vibronic Bands of A1Π,B1Σ+,C1Σ+ and E1Π Transitions of Carbon Monoxide[J].Phys Rev,1997,A55:1 799.

同被引文献22

  • 1Chan W F, Cooper G, Brion C E. Absolute optical os- cillator strengths for the electronic excitation of atoms athigh resolution: experimental methods and measure- ments for helium [J]. Phys. Rev. A, 1991,44: 186.
  • 2Zhong Z P, Feng R F, Xu K Z, et al. Absolute gener- alized oscillator strengths for the vibronic bands of AllI, B1,Y+ , CI,Y+ , and El// transitions of carbon monoxide [J]. Phys. Rev. A, 1997, 55: 1799.
  • 3Xu K Z, Feng R F, Wu S L, et al. Absolute general- ized oscillator strengths of 21S and 21P excitations of helium measured by angle - resolved electron - energy - loss spectroscopy [ J ]. Phys. Rev. A, 1996, 53 : 3081.
  • 4Zhu L F, Liu X J, Li W B, et al. Correction of pres- sure effect for measurement of differential cross section [J]. Nucl. Phys. Rev., 2002, 2:19 (in Chinese).
  • 5Brinkmann R T, Trajmar S. Effective path length cor- rections in beam -beam scattering experiments [ J ]. J. Phys. E: Sci. lnstrum. , 1981, 14: 245.
  • 6Liu X J, Zhu L F, Yuan Z S, et al. The generalized oscillator strengths for the valence shell excitations in helium by fast electron impact [J]. J. Electron. Spec- trosc. Relat. Phenom., 2004, 135: 15.
  • 7Dillon M A, Lassettre E N. A collision cross section study of the 11S-+21P and llS-~21S transitions in he- lium at kinetic energies from 200 -700 eV. Failure of the Born approximation at large momentum changes [J]. J. Chem. Phys., 1975, 62: 2373.
  • 8Brnnger M J, Buckman S J. Electron - molecule scat- tering cross - sections. I. Experimental techniques and data for diatomic molecules [ J ]. Phys. Rep. , 2002, 357 : 215.
  • 9Cann N M, Thakkar A J. First Born differential cross -sections for electronic excitation in the helium atom [J]. J. Electron. Spectrosc. Relat. Phenom., 2002, 123 : 143.
  • 10Liu X J, Zhu L F, Yuan Z S, et al. The generalized oscillator strengths for the valence shell excitations in helium by fast electron impact [ J ]. J. Electron. Spec- trosc. Relat. Phenom. , 2004, 135: 15.

引证文献1

二级引证文献1

原子核物理评论
2002年 第2期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部