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Enhanced Parametric X-Ray Emission from Grazing Incident Electrons

机译:从放牧事件电子加强参数X射线排放

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Strong monochromatization of the parametric x-ray emission spectrum is predicted for electrons moving at small angles to the reflecting crystallographic plane of target crystals. The effect can only be realized far from the Bragg-resonance condition and is caused by a long "tail" in the angular parametric-x-ray distribution. In addition, there can be a substantial enhancement of the parametric x-ray yield from grazing-incidence electrons when there is strong asymmetric diffraction (the reflecting crystallographic plane is not parallel to the surface of the crystal). It is shown that this allows one to suppress the influence of photoabsorption on parametric x-ray emission.
机译:预测了参数X射线发射光谱的强单色化,用于以小角度移动到靶晶体的反射晶体平面的小角度。效果只能从布拉格共振条件实现并且是由角参数 - X射线分布中的长“尾”引起的。另外,当存在强不对称衍射时,可以存在从放牧入射电子的参数X射线屈服的显着提高(反射晶体平面不平行于晶体的表面)。结果表明,这允许人们抑制光吸收对参数X射线发射的影响。

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