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pro vyhledávání: '"Atsuo Iida"'
Autor:
Takashi Noma, Atsuo Iida
Publikováno v:
Review of Scientific Instruments. 65:837-844
A new surface characterization technique with a lateral spatial resolution has been developed for nondestructive surface analysis using a synchrotron x‐ray microbeam. The grazing‐exit condition for fluorescent x‐ray detection is utilized to att
Publikováno v:
Review of Scientific Instruments. 62:2545-2549
X‐ray absorption fine structure (XAFS) measurements in regions less than 20 μm in diameter were realized using an x‐ray microprobe employing the fluorescence detection method. To realize an energy tunable intense small x‐ray beam, an ellipsoid
Publikováno v:
Review of Scientific Instruments. 66:1373-1375
A hard x‐ray microprobe has been developed for small‐angle x‐ray diffraction studies. The x‐ray microprobe system consists of a multilayer monochromator in combination with x‐ray focusing mirrors (Kirkpatrick–Baez type) and achieves both
Autor:
Takashi Noma, Atsuo Iida, Kazuhiro Takada, Masatoshi Watanabe, Kazunori Fukuda, Taihei Mukaide
Publikováno v:
Applied Physics Letters. 98:111902
A scanning type x-ray imaging system which measures the absorption and differential phase shift in a material quantitatively and simultaneously has been developed. The absorption and differential phase are used to obtain the effective atomic number o
Publikováno v:
Review of Scientific Instruments. 80:033707
Two-directional differential phase contrast images were measured using an x-ray microbeam and a double wedge absorber. The wedge absorber converts the displacement of an x-ray beam that is refracted by an object into change of x-ray intensity. The do
Autor:
Kunikazu Takeshita, Michio Sugi, Shin-ichi Kuroda, Hiroyuki Oyanagi, Kazuhiro Saito, Yukito Furukawa, Atsuo Iida, Tadashi Matsushita
Publikováno v:
Review of Scientific Instruments. 63:879-879
We report the design and performance of a diffractometer which is used on the 53 pole wiggler beamline at the Photon Factory for grazing incidence x‐ray diffraction study of monolayers spread on the surface of water. It is a simple two‐circle (ω
Publikováno v:
Review of Scientific Instruments. 60:1519-1523
Circular zone plates for hard x rays, fabricated by dc planar magnetron sputtering, have been characterized using monochromatized synchroton x rays. The zone plates consisted of either 5 or 20 pairs of altenating WSi2 and C layers. The minimum focal
Publikováno v:
Review of Scientific Instruments. 60:2452-2455
An x‐ray focusing system with two Wolter type one mirrors was developed and used in a synchrotron radiation x‐ray micro analyzer (SRXMA). The SRXMA system and the characteristics of each Wolter mirror are described. The minimum beam size obtained
Publikováno v:
Review of Scientific Instruments. 60:2458-2461
X‐ray fluorescence imaging was made by the image reconstruction technique combined with synchrotron radiation. The monochromated synchrotron x‐rays of line shape were used for the excitation of elements or the chemical state of an element. The sa
Autor:
Atsuo Iida, Taro Toyoda, Masami Ando, T. Masujima, H. Imai, Mikio Kataoka, K. Kobayashi, T. Sano, H. Yoshida, Hideaki Shiwaku, Hiroshi Kawata, M. Nomura
Publikováno v:
Review of Scientific Instruments. 60:2522-2524
The instrumentation for the photoacoustic EXAFS experiment detailed here is under development at the Photon Factory. In the experimental setup, simultaneous detection of the absorption spectra in addition to the photoacoustic measurement was useful f