Tohoku Univ. Technology：Distributed curvature crystal lens and X-ray reflectance measurement device：T07-098
Realization of a distributed curvature crystal lens with high light focusing accuracy! Able to increase X-ray intensity and realize compact device with long life!
In a conventional X-ray monochromator, the spectroscopic crystal is elastically bent slightly, then polished to obtain a uniform diffraction. However, this method where the crystal is deformed within the elastic limit, cannot be applied for a large curvature bending, so it can only be used for a big X-ray device. Moreover, there is also an issue on the deformation stability and aging due to keeping the crystal deformed. This invention is able to realize a distributed curvature crystal lens with a wide incident angle and high light focusing accuracy. This distributed curvature crystal lens is made by plastic deformation of Ge or Si (110) single crystal plate pressed by a mold at high temperature. The X-ray reflectance measurement system of this invention is equipped with above lens which enables to focus a wide angle and significantly increase X-ray intensity.
- Company：Tohoku Techno Arch Co., Ltd.
- Price：Other
