Ionization coefficients for argon in a micro-discharge

被引:9
作者
Kuschel, Thomas [1 ]
Stefanovic, Ilija [2 ]
Malovic, Gordana [2 ]
Maric, Dragana [2 ]
Petrovic, Zoran Lj [2 ]
机构
[1] Ruhr Univ Bochum, Inst Expt Phys 2, D-44801 Bochum, Germany
[2] Univ Belgrade, Inst Phys, Belgrade 11080, Serbia
关键词
EXCITATION COEFFICIENTS; ELECTRON IONIZATION; GAS-DENSITY; BREAKDOWN; PRESSURE; KRYPTON; XENON; FIELD; NEON;
D O I
10.1088/0963-0252/22/4/045001
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
Ionization coefficients are measured for electrons in a dc micro-discharge in argon from optical emission profiles. The micro-discharge is operated in the Townsend regime between two parallel-plate electrodes. Axial profiles of emission are obtained with sufficient resolution to provide spatial ionization coefficients. The measured coefficients agree very well with the data obtained from other sources, indicating the operation of the discharge in the Townsend regime and also that Townsend mechanisms do not need extension to describe such discharges.
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页数:4
相关论文
共 23 条
[11]   On the possibility of long path breakdown affecting the Paschen curves for microdischarges [J].
Maric, D. ;
Skoro, N. ;
Maguire, P. D. ;
Mahony, C. M. O. ;
Malovic, G. ;
Petrovic, Z. Lj .
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2012, 21 (03)
[12]   Determination of effective electron yield from swarm and time delay measurements [J].
Markovic, VL ;
Gocic, SR ;
Stamenkovic, SN ;
Petrovic, ZL ;
Radmilovic, M .
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2001, 14 (03) :171-176
[13]   AN INTENSE AND EFFICIENT SOURCE OF VACUUM ULTRAVIOLET-RADIATION - LOW-PRESSURE XE TOWNSEND DISCHARGE [J].
MIKOSHIBA, S ;
SHINADA, S ;
SHIRAI, S .
JOURNAL OF APPLIED PHYSICS, 1985, 58 (10) :3720-3726
[14]   Detailed structure of dc glow discharges - Effects of pressure, applied voltage, and gamma-coefficient [J].
Nanbu, K ;
Kageyama, J .
VACUUM, 1996, 47 (6-8) :1031-1033
[15]   Measurement and interpretation of swarm parameters and their application in plasma modelling [J].
Petrovic, Z. Lj ;
Dujko, S. ;
Maric, D. ;
Malovic, G. ;
Nikitovic, Z. ;
Sasic, O. ;
Jovanovic, J. ;
Stojanovic, V. ;
Radmilovic-Radenovic, M. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2009, 42 (19)
[16]   Breakdown, scaling and volt-ampere characteristics of low current micro-discharges [J].
Petrovic, Z. Lj ;
Skoro, N. ;
Maric, D. ;
Mahony, C. M. O. ;
Maguire, P. D. ;
Radmilovic-Radenovic, M. ;
Malovic, G. .
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (19)
[17]   EXCITATION AND BREAKDOWN OF AR AT VERY HIGH RATIOS OF ELECTRIC-FIELD TO GAS-DENSITY [J].
PHELPS, AV ;
JELENKOVIC, BM .
PHYSICAL REVIEW A, 1988, 38 (06) :2975-2990
[18]   Cold-cathode discharges and breakdown in argon: surface and gas phase production of secondary electrons [J].
Phelps, AV ;
Petrovic, ZL .
PLASMA SOURCES SCIENCE & TECHNOLOGY, 1999, 8 (03) :R21-R44
[19]  
Raizer Y. P., 1997, Gas Discharge Physics
[20]   ELECTRON IONIZATION AND EXCITATION COEFFICIENTS FOR ARGON, KRYPTON, AND XENON IN THE LOW E-N REGION [J].
SPECHT, LT ;
LAWTON, SA ;
DETEMPLE, TA .
JOURNAL OF APPLIED PHYSICS, 1980, 51 (01) :166-170