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In particle accelerators, a common mechanism for accelerating a charged particle beam is via copper resonant cavities in which electric and magnetic fields form a standing wave, the mode of which is designed so that the E field points along the axis of the accelerator, producing forward acceleration of the particles when in the correct phase. The maximum electric field achievable is limited by a process known as RF breakdown. The reliable limits for various RF frequencies were tested experimentally in the 1950s by W. D. Kilpatrick. An approximate relation by least-square optimization of the data yields〔. This form apparently comes from a Los Alamos note: : T. J. Boyd, Jr., ''Kilpatrick's criterion'', Los Alamos Group AT-1 report AT-1:82-28, February 12, 1982.〕 with (megavolts per metre). This relation is known as the Kilpatrick Limit. == References == 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「Kilpatrick limit」の詳細全文を読む スポンサード リンク
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