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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 Heel effect ： ウィキペディア英語版 Heel effect In X-ray tubes, the heel effect or more accurately, the anode heel effect is a variation of the intensity of X-rays emitted by the anode depending on the direction of emission. Due to the geometry of the anode, X-rays emitted towards the cathode are in general more intense than those emitted perpendicular to the cathode–anode axis. The effects stems from the absorption of X-ray photons before they leave the anode in which they are produced. The probability for absorption depends on the distance the photons travel within the anode material, which in turn depends on the direction of emission. ==Target material== The higher the atomic number, the greater the efficiency of X-ray production. As an example platinum with atomic number 78 produces more white radiation than tungsten with atomic number 74 at the same X-ray production conditions such as current and voltage settings. 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「Heel effect」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.