Parameters of the cathode spot upon field emission |
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| Authors: | V N Arustamov Kh B Ashurov Kh Kh Kadirov R B Nagaybekov I Kh Khudaykulov |
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| Institution: | 1. Institute of Ion-Plasma and Laser Technologies, Tashkent, 100125, Uzbekistan
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| Abstract: | This work is devoted to studying the parameters of the cathode spot of a vacuum arc. According to calculations under conditions of autoelectronic emission, the temperature of the cathode spot is T n = (1–2.5) × 103 K, the electric-field strength is E = (1–6) × 107 V cm?1, and the current density in the spot is j n = (0.15–3) × 107 A cm?2. The values of the cathode-spot parameters for cathodes of different materials are obtained and the type of electron emission is determined. |
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