论文信息 - Note: measurement of extreme-short current pulse duration of runaway electron beam in atmospheric pressure air.

Note: measurement of extreme-short current pulse duration of runaway electron beam in atmospheric pressure air.

This note reports the time-amplitude characteristic of the supershort avalanche electron beam with up to 20 ps time resolution. For the first time it is shown that the electron beam downstream of small-diameter diaphragms in atmospheric pressure air has a complex structure which depends on the interelectrode gap width and cathode design. With a spherical cathode and collimator the minimum duration at half maximum of the supershort avalanche electron beam current pulse was shown to be ~25 ps. The minimum duration at half maximum of one peak in the pulses with two peaks can reach ~25 ps too.

V. Tarasenko | M. Lomaev | D. Rybka | A. Burachenko | E. Balzovsky

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