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Are coaxial super power gyrotrons feasible?

  • O. Dumbrajs*
  • , H. Kalis
  • , A. Reinfelds
  • *Corresponding author for this work
  • University of Fukui
  • Aalto University

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Limits on the power generated by coaxial gyrotrons are investigated. It is shown that among all the operating modes suggested recently for coaxial super power gyrotrons only modes with azimuthal index m lower than about 44 pass the spatial stochasticity test. Modes with higher azimuthal indices cannot be used as operating modes because gyrotron oscillations become chaotic in the azimuthal direction and efficiency is very low. It is argued that there exists a natural upper limit on power generated by gyrotrons which is about 4 MW.

Original languageEnglish
Pages (from-to)787-805
Number of pages19
JournalInternational Journal of Infrared and Millimeter Waves
Volume26
Issue number6
DOIs
Publication statusPublished - Jun 2005

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Keywords

  • ECRH
  • Gyrotrons

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