Japanese Journal of Applied Physics 63(3) 038001-038001 2024年3月 [査読有り]
Abstract
In coherent X-ray diffraction imaging, speckles on a coherent diffraction pattern must be sampled at intervals sufficiently finer than the Nyquist interval, which imposes an upper limit on the sample size. To overcome the size limitatio...
<title>Abstract</title>The quest for understanding the structural mechanisms of material properties and biological cell functions has led to the active development of coherent diffraction imaging (CDI) and its variants in the hard X-ray regime. He...
Japanese Journal of Applied Physics 60(11) 118001-118001 2021年11月 [査読有り]
Abstract
The optical transfer function (OTF) of an inverse-phase composite zone plate under incoherent illumination was numerically evaluated by convoluting the point spread function (PSF) and transmission distribution of a model sample with gra...
We have obtained the x-ray phase contrast images of the activated carbon/carbon (AC/C) composite used as electrodes in an electric double-layer capacitor (EDLC). To improve the spatial resolution, the beam size of x-ray transmitted from a sample w...
X-Ray Microscopy: Proceedings of the Sixth International Conference 507 668-671 2000年
A phase zone plate made of tantalum has been designed and fabricated for focusing hard x-rays. It is designed to optically match to the undulator radiation of the BL24XU at the SPring-8. Its focusing properties were measured. The focused beam size...
X-Ray Microscopy: Proceedings of the Sixth International Conference 507 41-44 2000年
Phase-contrast x-ray imaging has been studied for materials, biological and medical sciences at the Hyogo-prefectural beamline (BL24XU) of the SPring-8. Its optical system consists of a successive arrangement of horizontal and vertical (+,-) silic...
X-RAY AND INNER-SHELL PROCESSES 506 565-576 2000年 [査読有り]
Since the synchrotron X-rays are intense enough even after the sequential expansion of the X-ray beam by successive asymmetric Bragg reflections, Live refraction images of internal structure for biological materials can be seen on an X-ray image s...
X-Ray Microscopy: Proceedings of the Sixth International Conference 507 416-419 2000年
Phase-contrast x-ray microscopy has been performed using a point focus x-ray source. The method is essentially the projection microscopy, but the contrast enhancement due to the refraction is obtained by taking a certain sample-detector distance l...