1keV以上电子对乙烯的散射全截面绝对测量

Absolute Total Cross Section Measurements Above 1keV Electrons in C_2H_4

介绍中能电子与乙烯分子的散射全截面绝对测量 ,给出 1 1 0 0～ 1 40 0eV电子对乙烯分子的绝对散射全截面 .实验结果的系统误差和统计误差均约为 4% .本结果与已有的实验值和理论值作了比较 ,还对三组等电子数分子实验的电子散射全截面与分子的大小及极化率的关系进行了探讨 .

Absolute total cross sections for electron scattering by C\-2H\-4 at 1100～1400eV with a systematic error of about 4% and the statistical error of about 4% have been measured. The experimental results are compared with available experimental and theoretic results,and explorations are made into the relativities of total electron scattering cross sections of three groups of isoelectronic molecules with molecular size and molecular polarizability.