Study on statistical breakdown delay time in argon gas using a W-band millimeter-wave gyrotron
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Physics of Plasmas, ISSN: 1070-664X, Vol: 23, Issue: 4
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- Physics and Astronomy; Electric field effects; Electric fields; Millimeter waves; Monte Carlo methods; Plasma simulation Electric-field amplitude; Millimeter-wave gyrotrons; Monte Carlo collision; Particle-in-cell simulations; Plasma initiation; Statistical delays; Threshold electric fields; W-band frequencies
In this study, we investigated plasma initiation delay times for argon volume breakdown at the W-band frequency regime. The threshold electric field is defined as the minimum electric field amplitude needed for plasma breakdown at various pressures. The measured statistical delay time showed an excellent agreement with the theoretical Gaussian distribution and the theoretically estimated formative delay time. Also, we demonstrated that the normalized effective electric field as a function of the product of pressure and formative time shows an outstanding agreement to that of 1D particle-in-cell simulation coupled with a Monte Carlo collision model.