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Telecommunications and Radio Engineering
SJR: 0.202 SNIP: 0.2 CiteScore™: 0.23

ISSN Imprimer: 0040-2508
ISSN En ligne: 1943-6009

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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i1.30
pages 31-42

TRANSPORT OF HIGH-CURRENT TUBULAR RELATIVISTIC ELECTRON BEAM IN HYBRID COAXIAL MAGNETIC UNDULATOR

K. V. Ilyenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine
T. Yu. Yatsenko
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine 12, Academician Proskura St., Kharkiv 61085, Ukraine
S.A. Kurkin
N.G. Chernyshevsky Saratov State University 83, Astrakhanskaya Str., Saratov, 410012, Russia

RÉSUMÉ

A closed set of dynamic equations was formulated to describe the transport of high-current charged-particle beam in a coaxial drift-tube in a combination of longitudinal homogeneous (guide) and periodic undulatory magnetostatic fields. The expressions were obtained for undulator's period-averaged self-electric and magnetic fields of charged-particle beam. The longitudinal component of the total self-magnetic field is also taken into account. It was shown that the guide magnetic field can be used to control the position of high-current charged-particle beam in the transverse cross-section of the coaxial drift-tube. It is also demonstrated that the presence of the guide magnetic field, which is usually considered necessary to increase the amplitude of the beam transverse oscillations and to enhance the output power in a hybrid coaxial free-electron laser/maser (FEL/FEM), also imposes a restrictive limit on the maximal value of the beam transmitted current.


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