Radiative characteristics of nitrogen upon excitation by volume discharge initiated by runaway electron beam

被引:31
|
作者
Lomaev, M. I. [1 ]
Rybka, D. V. [1 ]
Sorokin, D. A. [1 ]
Tarasenko, V. F. [1 ]
Krivonogova, K. Yu. [1 ]
机构
[1] Russian Acad Sci, Inst High Current Elect, Siberian Branch, Tomsk 634055, Russia
关键词
EFFICIENCY; PRESSURE; N-2;
D O I
10.1134/S0030400X09070054
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The amplitude, time, spectral, and energetic characteristics of a volume (diffuse) discharge at an elevated pressure (up to 5 atm) in a gap with an inhomogeneous electric field without an additional preionization source are studied. The concentration and temperature of electrons in the discharge plasma are mea-sured by spectral methods. The effective lifetime of the C I-3 (u) state of the nitrogen molecule at the trailing edge of the radiation pulse is shown to be determined by radiative and collisional quenchings. For transitions of the second positive system of nitrogen, a plasma discharge radiation power into the complete solid angle is obtained to be similar to 120 kW, with a specific radiation power of up to similar to 50 kW/cm(3).
引用
收藏
页码:33 / 40
页数:8
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