Effect of an electric field on electron attachment to sulfur hexafluoride, nitrous oxide, and molecular oxygen in liquid argon and xenon
Effect of an electric field on electron attachment to sulfur hexafluoride, nitrous oxide, and molecular oxygen in liquid argon and xenon
复制标题
DOI：
10.1021/j100564a006
复制
发表时间：
1976-11
期刊：
影响因子：
--
通讯作者：
G. Bakale;U. Sowada;W. Schmidt
中科院分区：
文献类型：
--
作者：
G. Bakale;U. Sowada;W. Schmidt
研究了液氩和氙中电子附着到 SF/sub 6/、N/sub 2/O 和 O/sub 2/ 的速率常数与高达 10/sup 5/ V cm/sup -1/ 的外部电场的函数关系。虽然 k(e/sup -/ + SF/sub 6/) 和 k(e/sup -/ + O/sub 2/) 随着场强的增加而减小，但 k(e/sup -/ + N/sub 2/O) 却增加了近 100 倍。液化稀有气体中场效应对速率常数的影响与外场平均电子能量的增加有关。借助科恩-莱克纳理论，获得了电子能量分布函数，并且可以推导出附着横截面的能量依赖性的粗略估计。
The rate constant for electron attachment to SF/sub 6/, N/sub 2/O, and O/sub 2/ in liquid argon and xenon was studied as a function of an external electric field up to 10/sup 5/ V cm/sup -1/. While k(e/sup -/ + SF/sub 6/) and k(e/sup -/ + O/sub 2/) decreased with increasing field strength, k(e/sup -/ + N/sub 2/O) exhibited a nearly 100-fold increase. The field effect on the rate constant in the liquefied rare gases is related to the increase of the mean electron energy by the external field. By means of the Cohen--Lekner theory electron energy distribution functions were obtained and a rough estimate of the energy dependence of the attachment cross section could be deduced.