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The capillary-based pulsed plasma thruster (PPT) has high-energy transfer efficiency, which provides potential to improve traditional PPT performance. In this paper, the discharge characteristics of a capillary-based PPT have been investigated. First, the typical process of voltage and current waveform is recognized. It is featured with a fast voltage drop (~25 ns) and a consequent damped sine wave...
Extended interaction oscillator (EIO) operated in the terahertz range puts greater demand on current density and brightness of electron beam. The pseudospark-sourced (PS) electron beam is an attractive candidate to drive such high frequency EIOs. The study of a THz EIO driven by a PS sheet electron beam is presented. This enables the advantages of a interaction circuit combined with the merits of...
Energy characteristics of glow discharge plasma initiated in the hollow cathode while treating of inner surface of small-diameter tubes, which include waveguides for microwave radiation, were studied with a probe technique. It was shown that at the pressure in the gas discharge chamber of 53 Pa and discharge current of 75 mA, in the cathode cavity geometry studied a sufficiently dense plasma with...
The paper describes the schematic design and principle of operation for the ceramic-metal sealed-off pseudospark switches with the auxiliary glow discharge in the trigger unit. The switches are produced commercially by the Pulsed Technology Ltd., Ryazan, Russia [http://www.pulsetech.ru/index.htm] and are known as the switches of TPI-series whose anode voltage ranges from several to 50 k V. Proceeding...
Hollow cathode is widely used in a gas discharge experiment because the electrode structure is good at the high current discharge with a high efficiency. However, the analytic solution of electric field has not been reported elsewhere to our knowledge. In this study, Laplace solution of cylindrical hollow electrode is analyzed. The profiles of potential and electric field are represented according...
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