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We report a novel micromachined X-ray optics using DRIE formed micro mirrors for future space astronomical missions. We have fabricated a test optics and measured its imaging quality using X-rays. We have successfully verified the X-ray focusing using this type of optics for the first time in the world. The obtained angular resolution was about 20 arcmin and 3.1 mm. This result was consistent with...
Formation mechanism of twin boundaries in silicon multicrystals during crystal growth was investigated by using in-situ observation of the growth interface and following characterization of microstructures of the grown crystal. The crystal growth experiments were performed under two different conditions, which are constant cooling rate and intentionally changed crystal growth rate. Under both the...
We invented novel ultra-lightweight and high-resolution MEMS (Micro Electro Mechanical Systems) X-ray optics for space X-ray telescopes. As a first step of R&D, we conducted optical image analysis of a spherically-shaped test optic with a radius of curvature of 1000 mm. Focusing of the parallel light was verified with our optic for the first time.
With respect to an elderly person who is not physically handicapped, the bone fracture in tendency to fall sometimes becomes a big issue. That is to say, many aged people come to keep bed by reason of the bone fracture of thighbone cervix in the tendency to fall. Therefore, we propose a new type of body protection orthosis by using a pneumatic silicon outer fence mold element. In this paper, basic...
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