論文

査読有り 本文へのリンクあり
2011年

Stability analysis of relativistic electron beams in a wiggler with harmonic gyro-resonance using the lie perturbation method

Plasma and Fusion Research
  • Kenji Imadera
  • ,
  • Yasuaki Kishimoto

6
2011
開始ページ
1201004-1
終了ページ
1201004-3
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1585/pfr.6.1201004

The non-canonical Lie perturbation method for analyzing relativistic electron beams in free electron lasers [Y. Kishimoto et al., Phys. Plasmas 2, 1316 (1995)] is extended to the case with harmonic gyro-resonance due to the coexistence of a focusing wiggler and an axial guiding field, which allow the maximum beam current to be increased. By using non-canonical guiding-center variables, we have solved the particle motion not only far from the harmonic gyro-resonance but also near the resonance. Far from the resonance, the maximum beam current is found to increase in proportion to (B g/B w) 2 (B w and B g are the strength of the wiggler and guiding fields, respectively). On the other hand, near the resonance, the beam is found to be confined in a finite radial region and then transmitted because of higher order secular perturbations. © 2011 The Japan Society of Plasma Science and Nuclear Fusion Research.

リンク情報
DOI
https://doi.org/10.1585/pfr.6.1201004
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84860307783&origin=inward 本文へのリンクあり
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ID情報
  • DOI : 10.1585/pfr.6.1201004
  • eISSN : 1880-6821
  • SCOPUS ID : 84860307783

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