… There are two types of X-rays obtained by an X-ray tube. One type has a line spectrum determined by the type of element in the anticathode, and is called characteristic X-rays. When an electron collides with the anticathode, it knocks out an inner shell electron of an atom in the anticathode, creating a vacancy, and the outer shell electron falls into the vacancy and returns to its original state. The energy difference is emitted as an X-ray, and the mechanism of generation is the same as that of fluorescent X-rays. … *Some of the terminology that refers to "characteristic X-rays" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… X線管によって得られるX線には2種類のものが含まれている。一つは対陰極中の元素の種類で決まる線スペクトルからなるもので,これを特性X線または固有X線characteristic X‐raysと呼ぶ。対陰極に衝突した電子が対陰極の原子の内殻電子をたたき出して生じた空孔に,外殻の電子が落ち込んで元の状態に戻るとき,そのエネルギー差をX線として放出するもので,発生の機構は蛍光X線の場合と同じである。… ※「characteristic X-rays」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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