翻訳と辞書 Words near each other ・ K-Club ・ K-Commando ・ K-Commerce ・ K-complex ・ K-convex function ・ K-d tree ・ K-D-B-tree ・ K-Day ・ K-Days ・ K-Dee ・ K-Def ・ K-Developedia ・ K-distribution ・ K-Dow Petrochemicals ・ K-Drama (rapper) ・ K-edge ・ K-edge-connected graph ・ K-Electric ・ K-Electric F.C. ・ K-epsilon turbulence model ・ K-equivalence ・ K-factor ・ K-factor (actuarial) ・ K-factor (aeronautics) ・ K-factor (Cisco) ・ K-factor (fire protection) ・ K-factor (marketing) ・ K-factor (telecommunications) ・ K-finite ・ K-frame 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 K-edge ： ウィキペディア英語版 K-edge K-edge is the binding energy of the K shell electron of an atom. There is a sudden increase in the attenuation coefficient of photons occurring at a photon energy just above the binding energy of the K shell electron of the atoms interacting with the photons. This sudden increase in attenuation is due to photoelectric absorption of the photons. For this interaction to occur, the photons must have more energy than the binding energy of the K shell electrons (K-edge). A photon having an energy just above the binding energy of the electron is therefore more likely to be absorbed than a photon having an energy just below this binding energy.〔http://www.kayelaby.npl.co.uk/atomic_and_nuclear_physics/4_2/4_2_1.html〕 ==Use== The two X-ray contrast media iodine and barium have ideal K shell binding energies for absorption of X-rays, 33.2 keV and 37.4 keV, respectively, which is close to the mean energy of most diagnostic X-ray beams. Similar sudden increases in attenuation may also be found for other inner shells than the K shell; the general term for the phenomenon is absorption edge.〔(NIST data for full tabulation )〕 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「K-edge」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.