Výsledky vyhledávání - "Takeo Okumura"

Development of two-color resonance ionization scheme for Th using an automated wide-range tunable Ti:sapphire laser system

Autor: Volker Sonnenschein, Atsushi Nakamura, Kosuke Saito, Daiki Matsui, Takeo Okumura, Toshihide Kawai, Ryohei Ohtake, Tetsuo Sakamoto, Masaya Ohashi, Hideki Tomita, Iain Moore, Vincent Degner, Klaus Wendt, Masato Morita, Kotaro Kato, Tetsuo Iguchi

Publikováno v: Progress in Nuclear Science and Technology. 5:97-99

Two-color resonance ionization schemes of Th were investigated by an automated wide-range tunable, grating-assisted Ti:Sa laser system with intracavity SHG option. A two-color ionization scheme via autoionizing state (1st step: 372.049 nm and 2nd ste

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::303573684ed1460c042e259d8ccd5c3c
https://doi.org/10.15669/pnst.5.97

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Mass spectral database for TOF-SIMS of stable isotopes of Sr and Zr

Autor: Toshihide Kawai, Masabumi Miyabe, Ryohei Terabayashi, Yukihiko Satou, Yue Zhao, Volker Sonnenschein, Yuzuka Ohmori, Masato Morita, Yuta Miyashita, Tetsuo Sakamoto, Ikuo Wakaida, Takeru Yoshida, Hideki Tomita, Kotaro Kato, Takeo Okumura

Publikováno v: Surface Science Spectra. 27:025001

Nuclear accidents (e.g., at the Chernobyl and Fukushima Daiichi nuclear power plants) release considerable amounts of radioactive pollutants into the environment. Radioactive particles in dust and soil can range from a few micrometers to several micr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4cb8ba57a7d9279f6786bfd13b205752
https://doi.org/10.1116/6.0000367

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Development of two-color resonant ionization sputtered neutral mass spectrometry and microarea imaging for Sr

Autor: Volker Sonnenschein, Kotaro Kato, Yuzuka Ohmori, Ryohei Terabayashi, Tetsuo Sakamoto, Toshihide Kawai, Yukihiko Satou, Masabumi Miyabe, Yue Zhao, Takeo Okumura, Yuta Miyashita, Ikuo Wakaida, Masato Morita, Takeru Yoshida, Hideki Tomita

Publikováno v: Journal of Vacuum Science & Technology B. 38:044001

Two-color resonant laser ionization sputtered neutral mass spectrometry offers high elemental selectivity. In this study, two-color resonance ionization in sputtered neutral Sr was confirmed by combining a grating type Ti:sapphire laser system and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6ca3f92d1e5fba1b095fd6ba23bfd413
https://doi.org/10.1116/6.0000006

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Resonant sputtered neutral mass spectrometry using multiple reflections of laser to counterbalance Doppler broadening

Autor: Tetsuo Sakamoto, Toshihide Kawai, Yue Zhao, Hideki Tomita, Ikuo Wakaida, Masabumi Miyabe, Volker Sonnenschein, Yukihiko Satou, Kotaro Kato, Yuzuka Ohmori, Yuta Miyashita, Takeo Okumura, Masato Morita

Publikováno v: Journal of Vacuum Science & Technology B. 38:034001

Resonant laser sputtered neutral mass spectrometry can greatly enhance the ionization efficiency of specific neutral sputtered atoms through resonant excitation using tunable laser(s). However, the laser beam cannot irradiate the entire volume where

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::50c52b176bc8efead294be6495b77f32
https://doi.org/10.1116/6.0000012

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Isotope-selective Microscale Imaging of Radioactive Cs without Isobaric Interferences Using Sputtered Neutral Mass Spectrometry with Two-step Resonant Ionization Employing Newly-developed Ti:Sapphire Lasers

Autor: Ikuo Wakaida, Toshihide Kawai, Tetsuo Sakamoto, Volker Sonnenschein, Kotaro Kato, Masaya Ohashi, Hideki Tomita, Takeo Okumura, Tetsuo Iguchi, Yukihiko Satou, Masato Morita, Kosuke Saito, Keita Kanenari

Publikováno v: Analytical sciences : the international journal of the Japan Society for Analytical Chemistry. 34(11)

The characterization of radionuclides in Fukushima is important to determine their origins and current state in the environment. Radionuclides exist as fine particles and are mixed with other constituents. A measurement method with both micro-imaging

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9cd2eb77f7000a0efd86ec54b310c2ac
https://pubmed.ncbi.nlm.nih.gov/29984782

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A Case Report of Carcinosarcoma of the Stomach

Autor: Takashi Takemura, Yutaka Matsuura, Yasuji Kawabata, Kiyoshi Ooba, Yoshiki Miyazaki, Takeo Okumura, Takao Nakai, Ken Hujishiro, Tadashi Itou

Publikováno v: The Japanese Journal of Gastroenterological Surgery. 26:2189-2193

症例は72歳の男性で, 食欲不振と貧血を主訴として来院し, 胃内視鏡検査にて幽門部にボールマンI型の腫瘍を指摘された.生検にて平滑筋肉腫と診断した.入院後, 大量吐血あり緊急手術を�

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6f86f9bdcfabcd0795421baf6bcfc69
https://doi.org/10.5833/jjgs.26.2189

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Hair and Brushing

Autor: Tetsuo Sasaki, Atsuo Ishida, Takeo Okumura, Shizuo Hayashi

Publikováno v: Journal of Society of Cosmetic Chemists of Japan. 11:5-11

The damaging effect of hair brushing was studied. The cuticle scales of the hair shaft were lifted away and stripped off by brushing the hair under experimental and practical conditions. Daily brushing was concluded to one of the most damaging factor

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e1c1ccf31d07ae5c9e1761c7a7503660
https://doi.org/10.5107/sccj1976.11.2_5

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