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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 Electron cyclotron resonance ： ウィキペディア英語版 Electron cyclotron resonance Electron cyclotron resonance is a phenomenon observed in plasma physics, condensed matter physics, and accelerator physics. An electron in a static and uniform magnetic field will move in a circle due to the Lorentz force. The circular motion may be superimposed with a uniform axial motion, resulting in a helix, or with a uniform motion perpendicular to the field, e.g., in the presence of an electrical or gravitational field, resulting in a cycloid. The angular frequency (ω = 2π''f'' ) of this ''cyclotron'' motion for a given magnetic field strength ''B'' is given (in SI units)〔In SI units, the elementary charge ''e'' has the value 1.602×10−19 coulombs, the mass of the electron ''m'' has the value 9.109×10−31 kilograms, the magnetic field ''B'' is measured in teslas, and the angular frequency ω is measured in radians per second.〕 by :$\backslash omega\_=\backslash frac$. where $e$ is the elementary charge and $m$ is the mass of the electron. For the commonly used microwave frequency 2.45 GHz and the bare electron charge and mass, the resonance condition is met when ''B'' = 875 G = 0.0875 T. For particles of charge ''q'', rest mass ''m''0 moving at relativistic speeds ''v'', the formula needs to be adjusted according to the special theory of relativity to: :$\backslash omega\_=\backslash frac$ where :$\backslash gamma=\backslash frac\{\backslash sqrt\{\; 1\; -\; (v/c)^2\; \}\}$. ==In plasma physics== An ionized plasma may be efficiently produced or heated by superimposing a static electron cyclotron emission can be used as a Plasma diagnostics 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「Electron cyclotron resonance」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.