POWER COUPLER FIELD ASYMMETRY INFLUENCE ON PARTICLE BEAMS DYNAMICS IN ACCELERATORS WITH SUPERCONDUCTING CAVITIES

M.V. Lalayanª¹, V.A. Makarov¹, N.P. Sobenin¹, V.I. Shvedunov², A.A. Krasnov³, A.A. Zavadtsev³

¹Moscow Engineering Physics Institute (State University), Moscow, Russia

²Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia

³Scantech Sciences LLC, Atlanta, USA

Abstract

An investigation of input coupler asymmetry influence on electron beam's dynamics in energy recovery linacs (ERL) with superconducting cavities was carried out. There were considered several types of input power couplers – coaxial and waveguide, asymmetric and symmetric. Based on numerical modeling distribution of electromagnetic fields in accelerating cavity with input coupler was found, the transverse deflecting impulse was calculated. RTMTRACE software was adapted for beam's dynamics modeling.

ª – corresponding author

Paper 

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