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This article presents the investigation of millimetre wave extended interaction oscillation (EIO) using both pencil and sheet-shaped pseudospark (PS)-sourced electron beams. A W-band (75–110 GHz) pencil beam Extended Interaction Oscillator (EIO) was designed and constructed to operate for the first experiment with the output power of 38 W achieved from a four-gap PS discharge operating at 30.5 kV...
A pseudospark (PS) plasma sourced electron beam was both computationally and experimentally studied for generation of millimetre wave and terahertz radiation. The beam-wave interaction region is a sinusoidal rippled-wall slow wave structure of a backward wave oscillator (BWO) in G-band. An electron beam of ˜1 mm diameter carrying a current of up to 10 A with a sweeping voltage of 42 to 25 kV and pulse...
Experimental results are presented of the first successful low-terahertz region operation of a pseudospark-driven backward wave oscillator (BWO) in the frequency range of 140 GHz to 220 GHz. The experiment agrees well with 3D particle-in-cell numerical simulations.
A small-scale pseudospark discharge is being investigated as the electron beam source for a klystron operating at a frequency of 94 GHz, and single-gap discharge experiments have been carried out. The klystron has been designed using the particle-in-cell (PiC) code MAGIC-2D and simulated output to date looks promising.
Based on previous experimental investigations on pseudospark (PS) discharges, a small-scaled PS electron beam source was conceived to drive a 200GHz microklystron. Recent PS e-beam experiments producing a beam of 1mm in diameter and klystron interaction simulations will be presented. The microklystron will be fabricated using micro-electro-mechanical systems (MEMS) construction techniques.
Based on previous experimental investigations on pseudospark (PS) discharges, a small-scaled PS electron beam source was conceived to drive a 200 GHz microklystron. Recent PS e-beam experiments producing a beam of 1 mm in diameter and klystron interaction simulations will be presented. The microklystron will be fabricated using micro-electro-mechanical systems (MEMS) construction techniques.
A pseudospark (PS) discharge has been shown to be a promising source of high quality, high intensity electron and ion beam pulses. A PS electron beam is ideal to drive high frequency radiation generators in the W-band (75 GHz to 110 GHz) due to its small beam size and the compactness of the device. This paper will present experimental results of the production of pseudospark-sourced electron beams...
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