Degradation and Recovery of the Emission From a Graphite Cathode in Relation to the Repetition Frequency of Nanosecond Accelerating Pulses

@article{Korovin2006DegradationAR,
  title={Degradation and Recovery of the Emission From a Graphite Cathode in Relation to the Repetition Frequency of Nanosecond Accelerating Pulses},
  author={S. D. Korovin and E. A. Litvinov and G. A. Mesyats and V. V. Rostov and S N Rukin and V S Shpak and M. I. Yalandin},
  journal={IEEE Transactions on Plasma Science},
  year={2006},
  volume={34},
  pages={1771-1776}
}
A study has been performed on the emissive characteristics of a cold graphite cathode in a magnetically insulated coaxial diode under the action of nanosecond accelerating pulses at a pulse repetition frequency (PRF) of up to 3.5 kHz. Emission was observed to degrade at PRF < 1 kHz and recover at PRF ~3.5 kHz. Estimates of the temperature conditions in the region of an explosive electron emission (EEE) center have shown that the pulse interval t~1 ms suffices for this region to cool down to 300… CONTINUE READING
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