REQUIREMENTS FOR SIMULTANEOUS IGNITION OF ALL CHANNELS IN A HIGH-CURRENT RADIAL MULTICHANNEL PSEUDOSPARK SWITCH

被引：12
作者：
NAWEED, A [1 ]
KIEFER, J [1 ]
NEFF, WJ [1 ]
LEBERT, R [1 ]
机构：
[1] RHEIN WESTFAL TH AACHEN, LEHRSTUHL LASERTECH, D-52074 AACHEN, GERMANY
来源：
IEEE TRANSACTIONS ON PLASMA SCIENCE | 1995年 / 23卷 / 03期
关键词：
D O I：
10.1109/27.402323
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：
In order to reduce erosion of electrodes and consequently achieve a long lifetime for high-power switches, a low-pressure switch, namely the pseudospark switch (PSS), is investigated as an alternative to the conventional high-power switches. The erosion can be reduced further along with an enhancement of the current and the rate of current rise, if more channels are introduced for the passage of current. An intense electron beam is known to be emitted by the hollow cathode during the starting phase in a pseudospark discharge. It has been reported that in a multichannel setup each installed channel can ignite only if it gets ionized by its respective beam. The results presented in this paper show how this multichannel operation can be accomplished. These results are based on a statistical study of a radial multichannel pseudospark switch and an observation of the discharge course by means of high-speed photography and show that a glow discharge trigger, with a high glow current (greater than or equal to 1.2 mA) and slowly rising trigger pulses (greater than or equal to 150 ns), allows a simultaneous ignition of up to 12 channels.
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页码：347 / 352
页数：6
相关论文
共 17 条
  • [1] Bickel P., Christiansen J., Frank K., Gortler A., Hartmann W., Et al., High repetition rate sealed-off pseudospark switches for pulsed modulators, IEEE Trans. Electron Device, 38, pp. 712-716, (1991)
  • [2] Frank K., Almen O., Bickel P., Christiansen J., Gortler A., Et al., Pseudospark switches for high repetition rates and high current applications, Proc. IEEE, 80, pp. 958-970, (1992)
  • [3] Mechtersheimer G., Kohler R., Lasser T., Meyer R., High repetition rate, fast current rise pseudospark switch, J. Phys. E: Sci. Instrum., 19, (1986)
  • [4] Billault P., Riege H., van Gulik M., Boggasch E., Frank K., Seebock R., “Pseudospark switches,”, (1987)
  • [5] Frank K., Christiansen J., Almen O., Boggasch E., Gortler A., Et al., 40 kV/20 kA pseudospark switch for laser applications, Proc. SPIE Space Structures, Power, And Power Conditioning, 20, pp. 173-180, (1988)
  • [6] Branston D.W., Hartmann W., Lins G., Rohde H.D., Stroh J., Pseudospark switch development at Siemens—Compact high-power switches for gas discharge lasers and as a spark gap replacement, Proc. 9th IEEE Pulsed Power Conf., (1993)
  • [7] Hartmann W., Kirkman G.F., Dominik V., Gundersen M.A., A superemissive self-heated cathode for high-power operation, IEEE Trans. Electron Device, 36, pp. 825-826, (1989)
  • [8] Mechtersheimer G., Kohler R., Multichannel pseudospark switch (MUPS), J. Phys. E: Sci. Instrum., 20, pp. 270-273, (1987)
  • [9] Rohde K.D., “Hollow-electrode switch,”, (1992)
  • [10] Bloess D., Kamber I., Riege H., Bruckner V., Christiansen J., Et al., The triggered pseudospark switch as a fast switch and as a high-intensity beam source, Nucl. Instrum. Meth., 205, 1-2, pp. 173-184, (1983)
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