High-current electron beam generator effective self-emission cathode for chemical and excimer lasers filling-up

George M. Chumak; A. E. Kravchik; I. P. Krotov; L. M. Lukyanova; S. Y. Maidel

doi:10.1117/12.143044

19 April 1993 High-current electron beam generator effective self-emission cathode for chemical and excimer lasers filling-up

George M. Chumak, A. E. Kravchik, I. P. Krotov, L. M. Lukyanova, S. Y. Maidel

Author Affiliations +

Proceedings Volume 1835, Excimer Lasers: Applications, Beam Delivery Systems, and Laser Design; (1993) https://doi.org/10.1117/12.143044
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

To study parameters of the diode electron gun with the current 80 - 100 kA (current density equals 1000 A/cm²), voltage 0,5 MeV, and pulse length 40 - 80 ns varied cathode materials was undertaken. Vacuum diode cathodes made of stainless steel, carbonic composite material and isotropic pyrographite are active in well-known explosion-emission regime. The cathode made of high-density pyrographite is active during all pulse-time in self-emission regime due to microspaces cooling with material anisotropic thermal and electrical conductivity.

Citation Download Citation

George M. Chumak, A. E. Kravchik, I. P. Krotov, L. M. Lukyanova, and S. Y. Maidel "High-current electron beam generator effective self-emission cathode for chemical and excimer lasers filling-up", Proc. SPIE 1835, Excimer Lasers: Applications, Beam Delivery Systems, and Laser Design, (19 April 1993); https://doi.org/10.1117/12.143044

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