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Journal Articles

Developments of wavelength-dispersive soft X-ray emission spectrometers for transmission electron microscopes; An Introduction of valence electron spectroscopy for transmission electron microscopy

Terauchi, Masami*; Koike, Masato; Fukushima, Kurio*; Kimura, Atsushi*

Journal of Electron Microscopy, 59(4), p.251 - 261, 2010/08

 Times Cited Count:34 Percentile:87.7(Microscopy)

Two types of wavelength-dispersive soft-X-ray spectrometers, a high-dispersion type and a conventional one, for transmission electron microscopes were constructed. Both spectrometers were extended energy regions $$>$$ 2000 eV. The best energy resolution of 0.08 eV was obtained for an Al L-emission by using the high-dispersion type. W-M and Si-K emissions were clearly resolved by using the conventional type. Soft-X-ray emission spectroscopy based on transmission electron microscopy has an advantage for obtaining spectra from a single crystalline specimen with a defined crystal setting. From C K-emission spectra of single crystalline graphite with different crystal settings, density of states of $$pi$$- and $$sigma$$-bondings were separately derived. Those results demonstrated a method to analyze the electronic states of valence electrons of materials in the nanometer scale based of transmission electron microscopy.

Journal Articles

The Outline and present state of the Horonobe Underground Research Laboratory Project

Seya, Masami; Hatanaka, Koichiro; Fukushima, Tatsuo

Sato Kogyo Gijutsu Kenkyushoho, (31), p.49 - 56, 2006/11

Although the atomic energy is utilized as effective energy source, treatment and disposal of high-level radioactive waste are important issues to be solved. In Japan, the high-level radioactive waste is planned to be disposed off in deep underground and R&D programs for the treatment and the disposal of the high-level radioactive waste are underway by Japan Atomic Energy Agency(JAEA) and other research institutes. The Horonobe Underground Research Laboratory Project is one of the research projects of JAEA to establish the scientific and technical basis in sedimentary rocks at Horonobe-cho, Hokkaido. In this report we introduce the outline and current status of the Horonobe Underground Reasearch Laboratory Project.

Journal Articles

The Construction plan of the Horonobe Underground Research Laboratory

Seya, Masami; Morioka, Hiroshi; Fukushima, Tatsuo

Sato Kogyo Gijutsu Kenkyushoho, (31), p.57 - 62, 2006/11

Japan Atomic Energy Agency is constructing a deep underground research laboratory at Horonobe-cho, Hokkaido. In this report, the outline of the construction plan of the Horonobe Underground Research Laboratory, treatment of muck and groundwater produced by the construction as environmental point of view, and observational method and disaster control as security are introduced.

Journal Articles

Development of wavelength-dispersive X-ray spectrometer for a conventional analytical transmission electron microscope

Terauchi, Masami*; Koike, Masato; Fukushima, Kurio*; Kimura, Jun*

Microscopy and Microanalysis, 12(Suppl.2), p.866 - 867, 2006/08

no abstracts in English

JAEA Reports

International Workshop on Horonobe Underground Research Laboratory Project / Record (Research Document)

Yamazaki, Shinichi; Matsui, Hiroya; Hama, Katsuhiro; Morioka, Hiroshi; Hatanaka, Koichiro; Fukushima, Tatsuo; Seya, Masami

JNC TN5400 2004-005, 181 Pages, 2004/12

JNC-TN5400-2004-005.pdf:49.9MB
JNC-TN5400-2004-005(errata).pdf:0.08MB

This report includes the records for the international workshop on Hornobe Underground Research Laboratory Project. Abstracts, Slides for Presentation, and so on.

Journal Articles

Degradation characteristics of humic acid during photo-Fenton processes

Fukushima, Masami*; Tatsumi, Kenji*; Nagao, Seiya

Environmental Science & Technology, 35(18), p.3683 - 3690, 2001/09

 Times Cited Count:134 Percentile:92.81(Engineering, Environmental)

no abstracts in English

Oral presentation

Development of wavelength-dispersive X-ray spectrometer for a conventional analytical transmission electron microscope

Terauchi, Masami*; Koike, Masato; Fukushima, Kurio*; Kimura, Jun*

no journal, , 

no abstracts in English

Oral presentation

Development and operation status of TANPOPO (space exposure of organic substances and microbes, and capture of stardusts and microbes)

Yamagishi, Akihiko*; Yokobori, Shinichi*; Hashimoto, Hirofumi*; Yano, Hajime*; Imai, Eiichi*; Okudaira, Kyoko*; Kawai, Hideyuki*; Kobayashi, Kensei*; Tabata, Makoto*; Nakagawa, Kazumichi*; et al.

no journal, , 

no abstracts in English

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