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In accelerator physics, the term acceleration voltage means the effective voltage surpassed by a charged particle along a defined straight line. If not specified further, the term is likely to refer to the ''longitudinal effective acceleration voltage'' . The acceleration voltage is an important quantity for the design of microwave cavities for particle accelerators. See also shunt impedance. For the special case of an electrostatic field that is surpassed by a particle, the acceleration voltage is directly given by integrating the electric field along its path. The following considerations are generalized for time-dependent fields. == Longitudinal voltage == The longitudinal effective acceleration voltage is given by the kinetic energy gain experienced by a particle with velocity along a defined straight path (path integral of the longitudinal Lorentz forces) divided by its charge,〔 . For resonant structures, e.g. SRF cavities, this may be expressed as a Fourier integral, because the fields , and the resulting Lorentz force , are proportional to (eigenmodes) with Since the particles kinetic energy can only be changed by electric fields, this reduces to 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「acceleration voltage」の詳細全文を読む スポンサード リンク
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