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The Borrmann effect (or Borrmann–Campbell effect after Gerhard Borrman and Herbert N. Campbell) is the anomalous increase in the intensity of X-rays transmitted through a crystal when it is being set up for Bragg reflection. The Borrmann effect—a dramatic increase in transparency to X-ray beams—is observed when X-rays satisfying Bragg's law diffract through a perfect crystal. The minimization of absorption seen in the Borrmann effect has been explained by noting that the electric field of the X-ray beam approaches zero amplitude at the crystal planes, thus avoiding the atoms. == References == * * * Borrmann, Gerhard; ''Über Extinktionsdiagramme von Quarz'', Physikalische Zeitschrift 42, 157–162 (1941); (''Die Absorption von Röntgenstrahlen im Fall der Interferenz'', Zeitschrift für Physik 127, 297–323 (1950) ) - original articles on Borrmann effect * Campbell, Herbert N.; (''X‐Ray Absorption in a Crystal Set at the Bragg Angle'' ), Journal of Applied Physics 22, 1139 (1951) * von Laue, Max; (''Die Absorption der Röntgenstrahlen in Kristallen im Interferenzfall'', Acta Crystallographica 2, 106–113 (1949) ) - original explanation of Borrmann effect 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「Borrmann effect」の詳細全文を読む スポンサード リンク
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