Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Tadayuki Ohchi"'
Publikováno v:
Biology, Vol 12, Iss 5, p 734 (2023)
Radiation-induced bystander response (RIBR) is a response induced in non-irradiated cells that receive bystander signals from directly irradiated cells. X-ray microbeams are useful tools for elucidating the mechanisms underlying RIBR. However, previo
Externí odkaz:
https://doaj.org/article/bb26dcaafdad45459bb90cbde8364639
Publikováno v:
Applied optics. 55(5)
We describe the design and fabrication of a ruthenium beam separator used to simultaneously attenuate infrared light and reflect soft x rays. Measurements in the infrared and soft x-ray regions showed the beam separator to have a reflectivity of 50%-
Autor:
Tadayuki Ohchi, Hiroshi Itoh, Shingo Ichimura, Masatoshi Hatayama, Satoru Kurosawa, Hisashi Ito, Akio Takano, Hisataka Takenaka
Publikováno v:
e-Journal of Surface Science and Nanotechnology. 9:293-296
An atomic force microscopy (AFM) tip characterizer with measurement ranges from 7.7 nm to 131 nm was developed using Si/SiO2 multilayers. This characterizer was constructed with isolated line structures and comb-shaped trench structures. The shape of
Autor:
Masatoshi Hatayama, Hiroshi Itoh, Shingo Ichimura, Tadayuki Ohchi, Akio Takano, Satoru Kurosawa, Hisataka Takenaka, Hisashi Ito
Publikováno v:
Journal of Surface Analysis. 17:264-268
A new type of AFM tip characterizer used for characterizing nanostructures in the 10 nm to 100 nm range was developed. The characterizer was fabricated by preferential etching the edge of a cross sectioned Si/SiO2 multilayer. Both isolated line struc
Publikováno v:
Photomask Japan 2015: Photomask and Next-Generation Lithography Mask Technology XXII.
Mo/Si multilayer mirror with 300-bilayers for EUV lithography is developed for the purpose of long-lifetime use in LPP EUV source. The multilayer mirrors are fabricated by a magnetron sputtering method and are characterized by coherence scanning inte
Autor:
Tadayuki Ohchi, Koumei Nagai, Hisashi Ito, Eric M. Gullikson, Satoshi Ichimaru, Hisataka Takenaka
Publikováno v:
Surface and Interface Analysis. 37:181-184
The development of highly reflective multilayer mirrors for use in the wavelength region around 6 nm has made it possible to use a multilayer-coated Schwarzschild objective for micro-x-ray photoemission spectroscopy. For this purpose, Co x Cr 1-x /C
Autor:
CHIEMI FUJIKAWA, NAOHIRO YAMAGUCHI, TADAYUKI OHCHI, TAMIO HARA, KATSUMI WATANABE, IBUKI TANAKA, MASAMI TAGUCHI
Publikováno v:
Laser and Particle Beams. 20:39-42
We have constructed an X-ray photoelectron microscopic system. An X-ray source is a laser-produced plasma in a scheme of an X-ray laser experiment. X rays involving amplified spontaneous emissions (ASE) at 15.47 nm were delivered with a 10-Hz repetit
Publikováno v:
Review of Scientific Instruments. 72:2943-2947
A new type of x-ray crystal spectrometry has been designed to characterize a hard x-ray spectrum of each pulse emission from a laser-induced plasma x-ray source. Utilizing the Laue diffraction and a two-dimensional detector, it makes possible the mea
Autor:
Asuka Ogata, Tadayuki Ohchi, Chiemi Fujikawa, Naohiro Yamaguchi, Kazunobu Okasaka, Tamio Hara
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. :907-912
We performed X-ray laser gain measurements for various wavelengths by changing lasant materials in the pulse-train laser pumped compact X-ray laser scheme. Wavelengths of laser lines have been extended utilizing the 3d–5f transition of Li-like Mg,
Publikováno v:
Journal of Electron Spectroscopy and Related Phenomena. :1047-1049
SiC/Mg multilayer mirrors were fabricated by magnetron sputtering for use in extreme ultraviolet photoelectron microscopy, applications of soft X-rays with high-order harmonics, astronomy and other applications for the wavelength region around 30 nm.