翻訳と辞書 Words near each other ・ Radiation (album) ・ Radiation (BBC Recordings 84–86) ・ Radiation (disambiguation) ・ Radiation and Environmental Biophysics ・ Radiation and health ・ Radiation and Nuclear Safety Authority ・ Radiation and Public Health Project ・ Radiation angle ・ Radiation assessment detector ・ Radiation burn ・ Radiation chemistry ・ Radiation City ・ Radiation constant ・ Radiation Control for Health and Safety Act of 1968 ・ Radiation damage ・ Radiation damping ・ Radiation dose reconstruction ・ Radiation effect ・ Radiation Effects ・ Radiation Effects and Defects in Solids ・ Radiation effects from the Fukushima Daiichi nuclear disaster ・ Radiation effects on optical fibers ・ Radiation Effects Research Foundation ・ Radiation enteropathy ・ Radiation exposure ・ Radiation Exposure Compensation Act ・ Radiation Exposure Monitoring ・ Radiation flux ・ Radiation hardening ・ Radiation hormesis Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Radiation damping ： ウィキペディア英語版 Radiation damping Radiation damping in accelerator physics is a way of reducing the beam emittance of a high-velocity charged particle beam by synchrotron radiation. The two main ways of using radiation damping to reduce the emittance of a particle beam are the use of ''undulators'' and ''damping rings'' (often containing undulators), both relying on the same principle of inducing synchrotron radiation to reduce the particles' momentum, then replacing the momentum only in the desired direction of motion. ==Damping rings== As particles are moving in a closed orbit, the lateral acceleration causes them to emit synchrotron radiation, thereby reducing the size of their momentum vectors (relative to the design orbit) without changing their orientation (ignoring quantum effects for the moment). In longitudinal direction, the loss of particle impulse due to radiation is replaced by accelerating sections (RF cavities) that are installed in the beam path so that an equilibrium is reached at the design energy of the accelerator. Since this is not happening in transverse direction, where the emittance of the beam is only increased by the quantization of radiation losses (quantum effects), the transverse equilibrium emittance of the particle beam will be smaller with large radiation losses, compared to small radiation losses. Because high orbit curvatures (low curvature radii) increase the emission of synchrotron radiation, damping rings are often small. If long beams with many particle bunches are needed to fill a larger storage ring, the damping ring may be extended with long straight sections. 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「Radiation damping」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.