International Journal of Terahertz Science and Technology
  TST >> Vol.7, No.2, March 2014: PP. 70-79

(Invited paper) The development of gyrotrons and their applications for plasma science and material processing

Yuri V. Bykov 1, Naum S. Ginzburg 1, 2, Mikhail Yu. Glyavin 1*, 2, Sergey V.Golubev 1, Grigory G. Denisov 1, Alexey G.Luchinin 1, Vladimir N.Manuilov 2 and the IAP RAS - GYCOM team 1
1 Institute of Applied Physics of the Russian Academy of Sciences, GYCOM Ltd. 46 Ul'yanov St., 603950 Nizhny Novgorod, Russia
2 Nizhny Novgorod State University, 23 Gagarin Ave., 603950 Nizhny Novgorod, Russia
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Abstract: The data about gyrotron-based technological systems and THz-band gyrotrons for diagnostics of different media are presented. The possible improvements of selective excitation of the operating modes with allowance for the competition with lower harmonics are considered. Double-beam electron optics is developed for a THz- band gyrotron. A sheet gyrotron as a tool for combining a high output power and frequency tuning is discussed. Long-life cathodes with additional heating by reflected electrons are preliminarily tested. 3D calculation of gyrotron operation regimes is carried out and the azimuthal inhomogeneity effects are analyzed. The results of experimental tests of a pulsed 200-kW/670-GHz gyrotron used for the initiation of localized gas discharge are presented.

Keywords: Gyrotron, Material processing, Terahertz, Multi-beam electron gun, Pulse field, Plasma discharge.

Received: 2014-1-16

Published: 2014-6-30

Acknowledgments: The authors are deeply grateful to their colleagues from the IAP RAS and international collaborators from the Research Center for Development of Far-Infrared Region, the University of Fukui, the Institute for Research in Electronics and Applied Physics University of Maryland, and the University of Electronic Science Technology of China for numerous helpful discussions and the implementation of common projects. This work was supported in part by RFBR grants 13-02-91160, 14-08-00334, 14-0200243.

Cite this article:
Yuri V. Bykov, Naum S. Ginzburg, Mikhail Yu. Glyavin, Sergey V.Golubev, Grigory G. Denisov, Alexey G.Luchinin, Vladimir N.Manuilov and the IAP RAS - GYCOM team.(Invited paper) The development of gyrotrons and their applications for plasma science and material processing[J]. International Journal of Terahertz Science and Technology, 2014, Vol.7, No.2: 70-79.  DOI:10.11906/TST.070-079.2014.06.06




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