Electron emission from a cathode doped by fast particles of a working gas

被引:15
作者
Bokhan, AP [1 ]
Bokhan, PA [1 ]
Zakrevsky, DÉ [1 ]
机构
[1] Russian Acad Sci, Inst Semicond Phys, Siberian Div, Novosibirsk 630090, Russia
基金
俄罗斯基础研究基金会;
关键词
D O I
10.1134/1.2051469
中图分类号
O59 [应用物理学];
学科分类号
摘要
The effect of fast charged and neutral particles on the emission properties of different materials is investigated. In many plasma devices, a flux of fast atoms and ions produces a specific self-sustained state of the layer near the cathode surface. In particular, this layer is saturated by working gas atoms to a depth of several monolayers. This state variously modifies different types of emission. Potential emission, taking place under the action of metastable atoms and ions, weakens because of a rise in the work function. On the contrary, kinetic emission, which is due to fast heavy particles, is enhanced, since energy losses in the modified near-surface layer increase. Photoemission resulting under the action of resonance radiation increases considerably, and its mechanism changes. (c) 2005 Pleiades Publishing, Inc.
引用
收藏
页码:1233 / 1235
页数:3
相关论文
共 19 条
[1]   ION-INDUCED ELECTRON-EMISSION FROM CLEAN METALS [J].
BARAGIOLA, RA ;
ALONSO, EV ;
FERRON, J ;
OLIVAFLORIO, A .
SURFACE SCIENCE, 1979, 90 (02) :240-255
[2]   The ion- and atom-induced secondary electron emission yield: numerical study for the effect of clean and dirty cathode surfaces [J].
Bogaerts, A ;
Gijbels, R .
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2002, 11 (01) :27-36
[3]   A mechanism of electron emission in an open discharge [J].
Bokhan, AP ;
Bokhan, PA .
TECHNICAL PHYSICS LETTERS, 2001, 27 (03) :220-222
[4]   METAL PHOTOCATHODES AS SECONDARY STANDARDS FOR ABSOLUTE INTENSITY MEASUREMENTS IN VACUUM ULTRAVIOLET [J].
CAIRNS, RB ;
SAMSON, JAR .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1966, 56 (11) :1568-&
[5]  
DEVOOGHT J, 1991, SPRINGER TR MOD PHYS, V122, P67
[6]   Heavy-particle hybrid modeling of transients in a direct-current argon discharge [J].
Donkó, Z .
JOURNAL OF APPLIED PHYSICS, 2000, 88 (05) :2226-2233
[7]   Apparent secondary-electron emission coefficient and the voltage-current characteristics of argon glow discharges -: art. no. 026401 [J].
Donkó, Z .
PHYSICAL REVIEW E, 2001, 64 (02) :9-264019
[8]   Heavy-particle hybrid simulation of a high-voltage glow discharge in helium [J].
Hartmann, P ;
Matsuo, H ;
Ohtsuka, Y ;
Fukao, A ;
Kando, M ;
Donkó, Z .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2003, 42 (6A) :3633-3640
[9]   Hybrid model of a plane-parallel hollow-cathode discharge [J].
Kutasi, K ;
Donkó, Z .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2000, 33 (09) :1081-1089
[10]   Axial emission profiles and apparent secondary electron yield in abnormal glow discharges in argon [J].
Maric, D ;
Kutasi, K ;
Malovic, G ;
Donkó, Z ;
Petrovic, ZL .
EUROPEAN PHYSICAL JOURNAL D, 2002, 21 (01) :73-81