Zobrazeno 1 - 10
of 174
pro vyhledávání: '"G. Momose"'
Publikováno v:
X-Ray Spectrometry. 37:121-124
Continuous x-rays produced in light-ion atom collisions have been experimentally and theoretically studied. The experimental results for aluminum target bombarded with ∼1.5 MeV protons can be mainly explained by atomic bremsstrahlung (AB) of K-shel
Autor:
G. Momose, Youhei Kikuchi, Tomihiro Kamiya, T. Yamaguchi, Keizo Ishii, Shigeo Matsuyama, M. Nagakura, R. Oyama, Masanobu Takahashi, Yutaka Watanabe, A. Ishizaki, Hiromichi Yamazaki, Y. Kawamura, K. Inomata
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 260:55-64
A microbeam system was constructed at the Tohoku University Dynamitron laboratory and optimization of the system was performed. Parasitic field contamination from tungsten carbide slit chips and an annular Si surface barrier detector limited the beam
Autor:
R. Oyama, Youhei Kikuchi, Hiromichi Yamazaki, Yutaka Watanabe, G. Momose, Keizo Ishii, T. Yamaguchi, A. Ishizaki, Y. Kawamura, Shigeo Matsuyama
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 571:64-68
We have developed a 3D-imaging system using characteristic X-rays produced by proton micro-beam bombardment. The 3D-imaging system consists of a micro-beam and an X-ray CCD camera of 1 mega pixels (Hamamatsu photonics C8800X), and has a spatial resol
Autor:
Youhei Kikuchi, G. Momose, Keizo Ishii, A. Ishizaki, Hiromichi Yamazaki, Y. Kawamura, S. Tsuboi, R. Oyama, Shigeo Matsuyama, M. Watanabe, K. Yamanaka, T. Yamaguchi, Yutaka Watanabe
Publikováno v:
International Journal of PIXE. 17:41-46
We have developed “micron-CT”, using micro-PIXE for in-vivo imaging. This system comprises an X-ray CCD camera (Hamamatsu photonics C8800X9) with high resolution (pixel size: 8×8 μm 2, number of pixels: 1000×1000) and an X-ray-point-source wit
Autor:
Y. Kawamura, Keizo Ishii, Yutaka Watanabe, T. Yamaguchi, Hiromichi Yamazaki, Youhei Kikuchi, K. Inomata, R. Oyama, G. Momose, A. Ishizaki, Shigeo Matsuyama
Publikováno v:
International Journal of PIXE. 17:23-31
We developed a new microbeam scanning system for efficient local area analyses and also for micro fabrication. The system accomplished a pattern-to-pattern spacing procedure, in which the microbeam was just scanned with a corresponding pattern of the
Autor:
Youhei Kikuchi, W. Galster, G. Momose, T. Yamaguchi, Hiromichi Yamazaki, Atsuki Terakawa, Yutaka Watanabe, Y. Kawamura, Keizo Ishii, Shigeo Matsuyama
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 249:726-729
We improved the spatial resolution of a 3D-CT imaging system consisting of a micro-beam and an X-ray CCD camera of 1 mega pixels (Hamamatsu photonics C8800X), whose element size is 8 μm × 8 μm providing an image size of 8 mm × 8 mm. A small ant o
Autor:
Y. Kawamura, E. Sakurai, Youhei Kikuchi, Tomihiro Kamiya, Takuro Sakai, Kazuo Arakawa, Keizo Ishii, Shigeo Matsuyama, R. Oyama, G. Momose, Takahiro Satoh, A. Ishizaki, Masakazu Oikawa, Takahiro Yamaguchi, Hiromichi Yamazaki, K. Inomata, Yutaka Watanabe, Kazuhiko Yanai
Publikováno v:
International Journal of PIXE. 16:149-156
We have developed an in-air on/off axis STIM for simultaneous density mapping with PIXE and RBS, which will be useful for damage-monitoring in cell analysis and for yield correction based on the thickness distribution of X-ray self-absorption in samp
Autor:
A. Ishizaki, H. Imaseki, A. Suzuki, Shigeo Matsuyama, Hiromichi Yamazaki, Ts. Amartaivan, Shinichi Abe, G. Momose, Keizo Ishii, Y. Barbotteau, T. Yamaguchi, Yutaka Watanabe, H. Ohtsu, Youhei Kikuchi, K. Inomata
Publikováno v:
International Journal of PIXE. 15:41-45
A microbeam analysis system at Tohoku University has been improved in detection efficiency for application to single cell analysis. The system is applicable to STIM analysis and to simultaneous PIXE and RBS analysis. Sample preparation methods suitab
Autor:
Y. Watanbe, A. Ishizaki, G. Momose, Youhei Kikuchi, H. Imaseki, Ts. Amartaivan, T. Yamaguchi, Hiromichi Yamazaki, K. Inomata, Y. Kawamura, Shigeo Matsuyama, Keizo Ishii, R. Oyama, Shinichi Abe, A. Suzuki
Publikováno v:
International Journal of PIXE. 15(3/4):257-262
A microbeam system has been developed for the analysis of single aerosol particles. Combination of PIXE, RBS and off-axis STIM methods enabled simultaneous analysis for hydrogen to metal elements. Aerosol particles were collected on thin polycarbonat
Autor:
Y. Takahashi, Ts. Amartaivan, Shinichi Abe, Youhei Kikuchi, T. Yamaguchi, Yutaka Watanabe, Shigeo Matsuyama, Hiromichi Yamazaki, K. Inomata, A. Ishizaki, Keizo Ishii, G. Momose
Publikováno v:
International Journal of PIXE. 15:241-247
An enhanced sample preparation method for PIXE analysis is described allowing to separate and concentrate arsenic ions of different oxidation states in water samples. Arsenate ions are separated from arsenite ions by co-precipitating into 10 ppm indi