Electron detachment cross sections of CH4- colliding with O2 and N2 below 10 keV energies

被引：8
|
作者：
Hernandez, E. M. [1 ,3 ]
Hernandez, L. [1 ]
Martinez-Flores, C. [1 ]
Trujillo, N. [1 ]
Salazar, M. [2 ]
Chavez, A. [2 ]
Hinojosa, G. [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Ciencias Fis, Cuernavaca 62251, Morelos, Mexico
[2] Univ Guadalajara, Ctr Univ Ciencias Exactas & Ingn, Guadalajara, Jalisco, Mexico
[3] Univ Autonoma Estado Morelos, Fac Ciencias, Cuernavaca 62209, Morelos, Mexico
来源：
PLASMA SOURCES SCIENCE & TECHNOLOGY | 2014年 / 23卷 / 01期
关键词：
methane anion; collision detachment; lifetime; NEGATIVE-IONS; ATTACHMENT;
D O I：
10.1088/0963-0252/23/1/015018
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Negative methane is an interesting molecular anion from a fundamental point of view and also because it can be a source of thermal electrons in low temperature hydrocarbon plasma. Measurements of collisional electron detachment from methane anions colliding with O-2 and N-2 in the energy range of 0.3 to 10.0 keV are presented. Single electron detachment was measured with the signal grow-rate method and total electron detachment was measured with the beam attenuation technique. Both techniques were employed in order to study the process of electron detachment over the present energy range. The validity of the geometrical model is discussed. Keywords:
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页数：7
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