Development of X-Ray Fluorescence Holography Instrument

全息方法提供强度和相位信息，虽然衍射方法，不提供相位信息，长期以来一直用于确定晶体结构。X射线荧光全息术采用两种类型的实验技术，它们已经成功地提供了原子图像：一种被称为“X射线荧光全息术”（XFH），另一种被称为“多能X射线全息术”（MEXH）。MEXH是将光学互易性原理应用于XFH的结果，它能够记录任意能量的全息强度，从而可以抑制孪生图像效应。我们在光子工厂成功地测量了X射线荧光强度的角度依赖性。我们还成功地获得了锌的原子图像（Zn ; 0.02wt%）掺杂到砷化镓（GaAs）中，并使用第三代同步辐射设备，SPring-8，日本同步辐射研究所，Nishi-Harima，Hyogo，Japan确定Zn位点。

Holographic methods provide both intensity and phase information, though diffraction methods, which do not give phase information, have long been used to determine crystal structure. X-Ray fluorescence holography employs two types of experimental techniques, which have successfully provided atomic images : one is called "X-ray fluorescence holography" (XFH), the other is called "multiple-energy X-ray holography" (MEXH). MEXH is the result of the optical reciprocity theorem applied to XFH, and is capable of recording holographic intensities at arbitrary energy, which can suppress the twin-image effect.We succeeded to measure the angle dependence of the X-ray fluorescence intensity at the Photon Factory.We also succeeded to obtain an atomic image of zinc (Zn ; 0.02 wt%) doped into gallium arsenide (GaAs), and to determine the Zn site using a thirdgeneration synchrotron-radiation facility, SPring-8, Japan Synchrotron Radiation Research Institute, Nishi-Harima, Hyogo, Japan.