A spectroscopic investigation of the near-cathode regions in a low-pressure arc

被引：38

作者：

Kondrat'eva, NP ^{[1
]}

Koval, NN ^{[1
]}

Korolev, YD ^{[1
]}

Schanin, PM ^{[1
]}

机构：

[1] Russian Acad Sci, Inst High Current Elect, Tomsk 634055, Russia

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 1999年 / 32卷 / 06期

关键词：

D O I：

10.1088/0022-3727/32/6/016

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The investigation described in this paper dealt with spectroscopic measurements of the near-cathode plasma in a low-pressure are on a Mg cathode with a current of 100 A and a pulse of duration 150 mu s. Information on the directed velocities of the heavy particles (ions and neutral species) has been obtained from measuring the Doppler shift and the broadening of the spectral lines. The electron density in the cathode flare has been estimated from the collisional broadening of the lines. The experimental data obtained support the validity of the potential hump model for treating the mechanism of fast-ion generation.

引用

页码：699 / 705

页数：7

共 10 条

[1] A physical model of the low-current-density vacuum arc [J].

Bolotov, A ;

Kozyrev, A ;

Korolev, Y .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1995, 23 (06) :884-892

[2]

BOLOTOV AV, 1996, 17 INT S DISCH EL IN, V1, P141

[3]

Griem H. R., 1974, Spectral Line Broadening by Plasmas

[4] EROSION AND IONIZATION IN CATHODE SPOT REGIONS OF VACUUM ARCS [J].

KIMBLIN, CW .

JOURNAL OF APPLIED PHYSICS, 1973, 44 (07) :3074-3081

[5]

KOZYREV AV, 1994, RUSS PHYS J, V37, P2071

[6]

LOCHTEHOLTGREVE.W, 1968, PLASMA DIAGNOSTIC

[7]

Mesyats G. A., 1989, PULSED ELECT DISCHAR

[8] CONSTRAINTS IMPOSED UPON THEORIES OF THE VACUUM-ARC CATHODE REGION BY SPECIFIC ION ENERGY MEASUREMENTS [J].

MILLER, HC .

JOURNAL OF APPLIED PHYSICS, 1981, 52 (07) :4523-4530

[9] ION FLUX FROM THE CATHODE REGION OF A VACUUM-ARC [J].

MILLER, HC ;

KUTZNER, J .

CONTRIBUTIONS TO PLASMA PHYSICS, 1991, 31 (03) :261-277

[10]

PLUTTO AA, 1965, ZH EKSP TEOR FIZ, V20, P328

← 1 →