TELECOMMUNICATIONS AND RADIO ENGINEERING - 2012 Vol. 71,
No 8 		 

 

 

 

DYNAMICS OF INTENSIVE ELECTRON BEAM IN DISK-LOADED WAVEGUIDE WITH VARIABLE PHASE VELOCITY


V.F. Zhiglo, A.I. Zykov, V.S. Kovalenko, E.Yu. Kramarenko, V.À. Kushnir, V.V. Mytrochenko, & À.N. Opanasenko
«Accelerator» National Research Laboratory,
«Kharkiv Institute of Physical Technology», National Research Center
1, Àkademichna St., 61108 Kharkiv, Ukraine
Address all correspondence to V.S. Kovalenko E-mail: kovalenko@kipt.kharkov.ua

Abstract
Results of numerical simulation of electron dynamics in a non-homogeneous disk-loaded waveguide which is used in the S-band linac with average power of an accelerated beam of 10 kW are presented. Two approaches taking into account the self-fields of beam radiation are considered: the first method, the estimative one, based on the power diffusion equation; the second, the full-scale one, based on self-consistent equations of field excitation and particles motion. The self-consistent approach showed the presence of substantial phase slipping of particles in the homogeneous part of the rf structure, conditioned by the reactive beam loading.
KEY WORDS: rf linac, a buncher, self-consistent problem

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pages 693-704

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