Title :
Evaluation of the effect of ion mobility in plasma erosion opening switch
Author_Institution :
Dept. of Electron. Eng., Southern Taiwan Univ., Taiwan
Abstract :
Plasma erosion opening switch (PEOS) has been developed in the past mainly for diverting TW power to produce pulsed ion beams for fusion research. It has demonstrated the highest current rise time possible and highest energy delivered. Recent advancements in high power microwave generate new interest in applying PEOS in such systems. Traditional carbon flash board plasma source is not suitable for repetitive application. We suggest the use of electrostatic injected hydrogen plasma as a new plasma source for a repeatable PEOS. Carbon plasma and hydrogen plasma differ in the areas like plasma injection speed, sheath current density, opening mechanism, and space charge field. Our simulations indicate the most importance factors in PEOS are magnetic insulation and cathode surface emission; therefore replacing carbon with hydrogen should make similar performance. Some discrepancies between simulation and experimental work are discussed and concept drawings on how to test the simulation experimentally and how to apply hydrogen are suggested.
Keywords :
carbon; hydrogen; insulation; ion beams; ion mobility; plasma sources; plasma switches; space charge; carbon plasma; cathode surface emission; electrostatic injected hydrogen plasma; fusion research; hydrogen; hydrogen plasma; ion mobility; magnetic insulation; opening mechanism; plasma erosion opening switch; plasma injection speed; pulsed ion beams; sheath current density; space charge field; Carbon dioxide; Fusion power generation; Hydrogen; Ion beams; Plasma applications; Plasma density; Plasma sheaths; Plasma simulation; Plasma sources; Switches;
Conference_Titel :
Power Modulator Symposium, 2004 and 2004 High-Voltage Workshop. Conference Record of the Twenty-Sixth International
Print_ISBN :
0-7803-8586-1
DOI :
10.1109/MODSYM.2004.1433642