翻訳と辞書 Words near each other ・ Pair bond ・ Pair by association ・ Pair Dadeni ・ Pair distribution function ・ Pair gain ・ Pair Of Dice Paradise ・ Pair of Kings ・ Pair of pants (mathematics) ・ Pair of spaces ・ Pair potential ・ Pair production ・ Pair programming ・ Pair skating ・ Pair testing ・ Pair trawling ・ Pair-conversion ・ Pair-et-Grandrupt ・ Pair-instability supernova ・ Pair-rule gene ・ Paira ・ Pairagachha ・ Pairan ・ Pairat Decharin ・ Pairatahi River ・ Pairc nan Laoch ・ Paired data ・ Paired difference test ・ Paired disparity code ・ Paired home ・ Paired metamorphic belts 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 Pair-conversion ： ウィキペディア英語版 Pair-conversion A pair-conversion instrument detects high-energy gamma rays by providing an environment—generally a thin foil of dense metal, commonly tungsten—in which they tend to generate electron-positron pairs, and then using standard particle-physics techniques such as a microstrip detector to detect these particles. Usually there are several stacks of conversion foils and particle detectors placed on top of one another, so that the electron-positron pairs can be tracked as they pass through consecutive detectors; and at the bottom of the stack one commonly finds a calorimeter capable of measuring the energy of the electron and the positron and inferring the energy of the incoming gamma ray. An anticoincidence shield of some kind is needed so that charged particles entering the device from outside are not confused with electron-positron pairs generated in the conversion foils. One of the larger operational pair-conversion telescopes is the Large Area Telescope on GLAST. Space-based pair-conversion detectors tend to make for rather expensive missions, since they unavoidably contain several hundred kilograms of lead or tungsten. () has a slide illustrating the design of LAT. 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「Pair-conversion」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.