The electric field strength and the electrode sheath voltage in high-pressure mercury arcs were experimentally determined for operation in a current-pulse mode. The current was sinusoidally alternating with a basic frequency of 50 Hz. Each fifth half cycle was pulsed with different ratios of the maximum current in the pulse to those in the other four half cycles. The experimental results quite well agree with model calculations considering radiation transport. The most impressive feature of the electrode sheath voltage is a very pronounced minimum immediately after the reignition peak which can reach high negative values.
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Kloss et al. (2001) studied this question.
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