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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Shunt impedance ： ウィキペディア英語版 Shunt impedance In accelerator physics, shunt impedance is a measure of the strength with which an eigenmode of a resonant radio frequency structure (e.g., in a microwave cavity) interacts with charged particles on a given straight line, typically along the axis of rotational symmetry. If not specified further, the term is likely to refer to ''longitudinal effective shunt impedance''. == Longitudinal shunt impedance == To produce longitudinal Coulomb forces which add up to the (longitudinal) acceleration voltage $\backslash scriptstyle\; V\_\backslash parallel$, an eigenmode of the resonator has to be excited, leading to power dissipation $\backslash scriptstyle\; P$. The definition of the longitudinal effective shunt impedance, $\backslash scriptstyle\; R$, then reads:〔 :$R\; =\; \backslash frac$ with the longitudinal effective acceleration voltage $\backslash scriptstyle\; |V\_\backslash parallel|$. The time-independent shunt impedance, $\backslash scriptstyle\; R\_0$, with the time-independent acceleration voltage $\backslash scriptstyle\; V\_0$ is defined:〔 :$R\_0\; =\; \backslash frac.$ One can use the quality factor $\backslash scriptstyle\; Q$ to substitute $\backslash scriptstyle\; P$ with an equivalent expression: :$R\; =\; Q\; \backslash frac,$ where W is the maximum energy stored. Since the quality factor is the only quantity in the right equation term that depends on wall properties, the quantity $\backslash scriptstyle\; \backslash frac$is often used to design cavities, omitting material properties at first (see also cavity geometry factor). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Shunt impedance」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.