A USEFUL METHOD FOR THE DETERMINATION OF THE TOTAL ELECTRON-SCATTERING CROSS-SECTION

被引：21

作者：

NISHIMURA, H ^{[1
]}

SAKAE, T ^{[1
]}

机构：

[1] KYUSHU UNIV,DEPT NUCL ENGN,HIGASHI KU,FUKUOKA 812,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1990年 / 29卷 / 07期

关键词：

Cross section; Electron transmission; Experiment; Experimental apparatus; Methane;

D O I：

10.1143/JJAP.29.1372

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A compact linear electron transmission apparatus has been constructed for the measurement of the total electron-scattering cross section for various atoms and molecules. The transmitted electrons are analyzed without a retarding potential. The effective scattering path length of electrons in the apparatus can be evaluated from measured currents. As a test of this method, the total electron-scattering cross section for CH4 has been measured in the energy range between 5 and 500 eV with a statistical uncertainty ≤5% for electrons below 250 eV and ≤7% for electrons above 250 eV. The results show E-1/2 dependence at lower energies and a steeper decline at higher energies. © 1990 The Japan Society of Applied Physics.

引用

页码：1372 / 1376

页数：5

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