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Improved theory of energy losses in corrugated inner conductor of coaxial gyrotron cavity
Publikationstyp
Conference Paper
Date Issued
2012-08
Sprache
English
Institut
TORE-URI
Start Page
283
End Page
287
Article Number
6331173
Citation
International Conference on Mathematical Methods in Electromagnetic Theory (MMET 2012)
Contribution to Conference
Publisher DOI
Scopus ID
The improved theory of Ohmic losses which takes into account effects of a field increase near edges of corrugations is developed for a coaxial gyrotron cavity with a corrugated inner conductor. It is shown that for the ITER relevant TE34,19 coaxial gyrotron operating at the maximal output power (∼2 MW) they do not lead to a notable increase of the total losses in the corrugated inner insert. However they can contribute substantially to the local density of losses near edges of corrugations especially in the shot pulse regimes when contribution of higher axial harmonics to the total field can be substantial.