A simple hard X-ray imaging method achieving a high spatial resolution is proposed. Images are obtained by scanning a metal wire through the wave field to be measured and rotating the sample to collect data for back projection calculations; the lo...
The cotyledon of legume seeds is a storage organ that provides nutrients for seed germination and seedling growth. The spatial and temporal control of the degradation processes within cotyledons has not been elucidated. Calcium oxalate (CaOx) crys...
Y. Kagoshima   H. Takano   S. Takeda   
JOURNAL OF APPLIED PHYSICS 113(21) 214314 2013年6月 [査読有り]
A constant-pitch microprism-array optical device has been developed. It is a modified version of the previously reported quasi-Fresnel lens [Kagoshima et al., Appl. Phys. Lett. 101, 163102 (2012)]. The modification eases the fabrication of the len...
JAPANESE JOURNAL OF APPLIED PHYSICS 52(4) 2013年4月 [査読有り]
We have developed a phase-contrast X-ray microtomography system based on scanning microscopy with X-ray focusing optics. The system is very simple because only two conventional intensity detectors and a half-obstructing-plate for the second detect...
An inclined-incidence quasi-Fresnel lens made of acrylic resin has been developed for prefocusing in synchrotron radiation x-ray beamlines. By inclining the lens, the grating aspect ratio is large enough for x-ray use. As it operates in transmissi...
Journal of Physics: Conference Series 849 012052-012052 2017年6月
We have improved the performance of a previously reported multilayer zone plate by reducing its outermost zone width, using the same multilayer materials (MoSi2 and Si) and fabrication technique. The focusing performance was evaluated at the BL24X...
XRM 2014: PROCEEDINGS OF THE 12TH INTERNATIONAL CONFERENCE ON X-RAY MICROSCOPY 1696 2016年
Multilayer zone plate (MZP) technology for hard X-ray focusing was upgraded and its focusing performance was evaluated using 20-keV X-rays at the synchrotron beamline (BL24XU) of SPring-8. The MZP consists of MoSi2 and Si layers alternately deposi...