年間 12 号発行
ISSN 印刷: 0040-2508
ISSN オンライン: 1943-6009
Indexed in
TRANSPORT OF HIGH-CURRENT TUBULAR RELATIVISTIC ELECTRON BEAM IN HYBRID COAXIAL MAGNETIC UNDULATOR
要約
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.