Development of Scanning-Type Synchrotron Radiation Mössbauer Microscope Using Focused X-Ray
Development of Scanning-Type Synchrotron Radiation Mössbauer Microscope Using Focused X-Ray
复制标题
开发使用聚焦X射线的扫描型同步辐射穆斯堡尔显微镜
DOI：
10.1143/jjap.43.389
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发表时间：
2004
影响因子：
1.5
通讯作者：
M. Seto
中科院分区：
文献类型：
--
作者：
T. Mitsui;Yasuhiro Kobayashi;M. Seto
在SPRING-8装置的BL11XU核共振光束线上，设计并安装了一台扫描式同步辐射穆斯堡尔显微镜。通过高分辨率单色仪、多层X射线聚焦镜和针孔狭缝的组合，获得了聚焦穆斯堡尔探测光束(<；φ20µm)。利用这台穆斯堡尔显微镜，我们首次用同步辐射穆斯堡尔显微镜测量了硼酸铁单晶的核共振前向散射随样品位置的变化。结果表明，观测到的穆斯堡尔时间谱依赖于局域超精细磁场的方向和局域样品的厚度。
A scanning-type synchrotron radiation Mössbauer microscope was designed and installed at the nuclear resonance beamline BL11XU of the SPring-8 facility. The focused Mössbauer probe beam (<φ20 µm) is obtained by the combination of a high-resolution monochromator, a multilayer X-ray focusing mirror and a pinhole slit. Using this Mössbauer microscope, we have performed, for the first time, the synchrotron radiation Mössbauer microscopic measurements of nuclear resonant forward scattering from an iron borate single crystal as a function of the sample position. It was found that the observed Mössbauer time spectra depend on the direction of the local hyperfine magnetic field and the local specimen thickness.