RUPAC2018 - List of Authors (Kurakin, V.G.)

Paper	Title	Page
TUPSA26	Electrodynamics of Weakly Coupled RF Cavities	200
	V.G. Kurakin LPI, Moscow, Russia
	The configuration formed by a pair of coupled identical rf cavities may manifest unexpected electromagnetic properties concerning its interaction with external rf sources and charged particle beams. Coupling splits resonance frequency of such a system into two different frequencies corresponding to different modes: 0 and pi. If cavity walls losses take place, that is cavities Q-values are finite for both modes, composite cavity resonance curves may overlap. This means that both cavity modes are excited effectively by external rf generator or by an intensity modulated charged particles beam traversing cavities. Thus, mixed mode excitation takes place, and resonance properties of such mixed mode as well as beam current loading effect differ qualitatively and quantitatively from those for real cavity eigen modes. In this paper, field approach is used to describe two coupled cavities system behavior. The expression for any cavity mode amplitude allows obtaining frequency dependence of cavity mixed mode amplitude for both cavities of the system under consideration. Appropriate formulae are supplemented by plots and vector diagrams.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA26
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Paper

Title

Page

Electrodynamics of Weakly Coupled RF Cavities

200

V.G. Kurakin
LPI, Moscow, Russia

The configuration formed by a pair of coupled identical rf cavities may manifest unexpected electromagnetic properties concerning its interaction with external rf sources and charged particle beams. Coupling splits resonance frequency of such a system into two different frequencies corresponding to different modes: 0 and pi. If cavity walls losses take place, that is cavities Q-values are finite for both modes, composite cavity resonance curves may overlap. This means that both cavity modes are excited effectively by external rf generator or by an intensity modulated charged particles beam traversing cavities. Thus, mixed mode excitation takes place, and resonance properties of such mixed mode as well as beam current loading effect differ qualitatively and quantitatively from those for real cavity eigen modes. In this paper, field approach is used to describe two coupled cavities system behavior. The expression for any cavity mode amplitude allows obtaining frequency dependence of cavity mixed mode amplitude for both cavities of the system under consideration. Appropriate formulae are supplemented by plots and vector diagrams.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA26

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)