澤田 圭司 (サワダ ケイジ)
学術研究院（工学系）
工学部 工学基礎部門
教授
研究者情報
研究活動情報
論文
- Hydrogen isotope effects on recombination dominant plasmas in NAGDIS-II
Jielin Shi, Hideki Kaizawa, Yuta Uematsu, Hirohiko Tanaka, Shin Kajita, Noriyasu Ohno, Keiji Sawada and Hongbin Ding
Plasma Phys. Control. Fusion, 66, 085006, 2024年, 査読有り - Deep learning model for predicting the spatial distribution of binding energy from atomic configurations
Seiki Saito, Shingo Sato, Hiroaki Nakamura, Chako Takahashi, Keiji Sawada, Kazuo Hoshino, Masahiro Kobayashi and Masahiro Hasuo
Jpn. J. Appl. Phys., 63, 09SP03, 2024年, 査読有り - First results of multi-fluid modeling of detached hydrogen plasmas in a linear plasma device using fluid code LINDA-NU
Kento Sugiura, Taichi Ido, Hirohiko Tanaka, Hiroki Natsume, Shota Masuda, Kazuo Hoshino, Keiji Sawada, Noriyasu Ohno
Contrib. Plasma Phys., 64, e202300150, 2024年, 査読有り
- 要素モデルの統合が実現する壁からプラズマまでを含めた中性粒子輸送研究 (小特集 磁場閉じ込め核融合装置における水素原子分子輸送研究の新展開)
齋藤 誠紀;中村 浩章;澤田 圭司;河村 学思;小林 政弘
プラズマ・核融合学会誌 = Journal of plasma and fusion research, 98(1), 5-19, 2022年01月 - Reduction of pulsed particle load with dynamic pressure induced by transient recycled neutral flux
Yuki Hayashi, Hirohiko Tanaka, Noriyasu Ohno, Shin Kajita, Thomas Morgan, Hennie van der Meiden, John Scholten, Jordy Vernimmen, Hiroki Natsume, Keiji Sawada, Shota Masuda
Plasma Physics and Controlled Fusion, 64, 105013, 2022年, 査読有り - Isotope Effect for Plasma Detachment in Helium and Hydrogen/Deuterium Mixture Plasmas
Xinyue GUO, Hirohiko TANAKA, Shin KAJITA, Noriyasu OHNO, Shogo HATTORI, Keiji SAWADA
Plasma and Fusion Research, 17,, 2402027, 2022年 - Electron and Proton Energy Loss via Rovibrational Excitation of Molecular Hydrogen in Fusion Detached Plasmas
Keiji SAWADA
Plasma and Fusion Research, 17, 2403044-1-4, 2022年, 査読有り - Isotope effect of rovibrational distribution of hydrogen molecules desorbed from amorphous carbon
Nakamura, Hiroaki; Saito, Seiki; Sawada, Takumi; Sawada, Keiji; Kawamura, Gakushi; Kobayashi, Masahiro; Hasuo, Masahiro;
Japanese Journal of Applied Physics, 61(SA), SA1005, 2022年, 査読有り
- イオン源プラズマの原子・分子過程 (小特集 イオン源の数値シミュレーション技術の進展と応用)
柴田 崇統;澤田 圭司
プラズマ・核融合学会誌 = Journal of plasma and fusion research, 97(10), 572-576, 2021年10月 - Ro-vibrational population distribution in the ground state of hydrogen isotopologues in LHD peripheral plasmas deduced from emission spectroscopy
Hiroki Ishihara, Arseniy Kuzmin, Masahiro Kobayashi, Taiichi Shikama, Keiji Sawada, Seiki Saito, Hiroaki Nakamura, Keisuke Fujii, Masahiro Hasuo, the LHD Experiment Group.
Journal of Quantitative Spectroscopy & Radiative Transfer, 267, 107592, 2021年, 査読有り - Molecular dynamics simulation for hydrogen recycling on tungsten divertor for neutral transport analysis
Saito, Seiki; Nakamura, Hiroaki; Sawada, Keiji; Kobayashi, Masahiro; Kawamura, Gakushi; Sawada, Takumi; Masahiro, Hasuo
Japanese Journal of Applied Physics, (60), SAAB08, 2020年, 査読有り - Molecular Dynamics Simulation Model of Hydrogen Recycling on Carbon Divertor for Neutral Transport Analysis in LHD
S. Saito, H. Nakamura, K. Sawada, G. Kawamura, M. Kobayashi, M. Hasuo
Contrib. Plasm. Phys., e201900152, 2020年, 査読有り - Spectroscopic Measurement of Hydrogen Atom Density in a Plasma Produced with 28 GHz ECH in QUEST
Mori, Satoru; Shikama, Taiichi; Hanada, Kazuaki; Yoneda, Nao; Kuzmin, Arseniy; Hasuo, Masahiro; Idei, Hiroshi; Onchi, Takumi; Ejiri, Akira; Osawa, Yuki; Peng, Yi; Matsuzaki, Kyohei; Kado, Shinichiro; Sawada, Keiji; Ido, Takeshi; Nakamura, Kazuo; Ikezoe, Ryuya; Nagashima, Yoshihiko; Hasegawa, Makoto; Kuroda, Kengo; Higashijima, Aki; Nagata, Takahiro; Shimabukuro, Shun
ATOMS, 8, 44, 2020年, 査読有り - Development of a Molecular Dynamics Method with Heat Transfer into Bulk for Ion Injection into Materials
Saito, Seiki; Nakamura, Hiroaki; Sawada, Keiji; Kobayashi, Masahiro; Gakushi, Kawamura; Masahiro, Hasuo
Plasma and Fusion Research, 15, 2403073, 2020年, 査読有り - Detached helium plasma simulation by a one-dimensional fluid code with detailed collisional-radiative model
Tanaka, H.; Saeki, I.; Ohno, N.; Kajita, S.; Ido, T.; Natsume, H.; Hatayama, A.; Hoshino, K.; Sawada, K.; Goto, M.
PHYSICS OF PLASMAS, 27(10), 102505, 2020年, 査読有り - Neutral transport code for rovibrational population calculation of molecular hydrogen in large helical device plasmas
K. Sawada, H. Nakamura, S. Saito, G. Kawamura, M. Kobayashi, K. Haga, R. Migita, T. Sawada, M. Hasuo
Contrib. Plasm. Phys., e201900153, 2020年, 査読有り - Reaction processes of molecular activated recombination leading to detachment of divertor simulation plasma in GAMMA 10/PDX
A. Terakado, M. Sakamoto, N. Ezumi, K. Nojiri, T. Mikami, Y. Kinoshita, S. Togo, T. Iijima, K. Sawada, S. Kado, Y. Nakashima
Nuclear Materials and Energy, 20, 100679, 2019年, 査読有り - Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror
Y. Nakashima, M.S. Islam, T. Iijima, M. Sakamoto, N. Ezumi, M. Yoshikawa, N. Asakura, M. Fukumoto, A. Hatayama, M. Hirata, M. Ichimura, R. Ikezoe, T. Imai, M.M. Islam, T. Kariya, J. Kohagura, S. Masuzaki, R. Minami, T. Nakano, K. Nojiri, T. Numakura, K. Sawada, M. Shoji, A. Terakado, S. Togo, S. Yamashita, T. Yoshimoto
Nuclear Materials and Energy, 18, 216-221, 2019年, 査読有り - Hydrogen recycling study with a high temperature target in the divertor simulation experiment in GAMMA 10 / PDX
Akihiro TERAKADO, Mizuki SAKAMOTO, Naomichi EZUMI, Kunpei NOJIRI, Tomohiro MIKAMI, Satoshi TOGO, Takaaki IIJIMA, Takayuki YOKODO, Keiji SAWADA
Plasma and Fusion Research, 13, 3402096, 2018年, 査読有り - Molecular activated recombination in divertor simulation plasma on GAMMA 10/PDX
M. Sakamoto, A. Terakado, K. Nojiri, N. Ezumi, Y. Nakashima, K. Sawada, K. Ichimura, M. Fukumoto, K. Oki, K. Shimizu, N. Ohno, S. Masuzaki, S. Togo, J. Kohagura, M. Yoshikawa
Nuclear Materials and Energy, 12, 1004-1009, 2017年, 査読有り - Particle source and edge confinement study based on spectroscopic diagnosis in the LHD
M. Goto, K. Sawada, T. Oishi, S. Morita
Plasma Physics and Controlled Fusion, 58, 84001-84005, 2016年, 査読有り - Photon Trapping Effects in DEMO Divertor Plasma
K. Hoshino, K. Sawada, R. Idei, S. Tokunaga, N. Asakura, K. Shimizu, N. Ohno
Contrib. Plasma Phys, 56, 657–662, 2016年, 査読有り - Rovibrationally Resolved Time-Dependent Collisional-Radiative Model of Molecular Hydrogen and Its Application to a Fusion Detached Plasma
Keiji Sawada and Motoshi Goto
ATOMS, 4(4), 29, 2016年, 査読有り - Hydrogen atomic and molecular emission locations and intensities in the LHD edge plasma determined from simultaneously observed polarization spectra
K. Fujii, K. Sawada, M Goto, S. Morita, M. Hasuo
Plasma and Fusion Research, 10, 3402041, 2015年, 査読有り - Energy Density Dependence of Hydrogen Combustion Efficiency in Atmospheric Pressure Microwave Plasma
T. Yoshida, N. Ezumi, K. Sawada, Y. Tanaka, M. Tanaka, K. Nishimura
Fusion Science and Technology, 67, 650-653, 2015年, 査読有り - Numerical study of the H0 atomic density and the Balmer line intensity profiles in a hydrogen negative ion source with the effect of non-equilibrium electron energy distribution function
Takanori Shibata, Mieko Kashiwagi, Akiyoshi Hatayama, Keiji Sawada, Takashi Inoue, Masaya Hanada
Plasma and Fusion Research, 9, 1401011, 2014年, 査読有り - Determination of electron temperature and density at plasma edge in the Large Helical Device with opacity-incorporated helium collisional-radiative model
M. Goto, K. Sawada
Journal of Quantitative Spectroscopy and Radiative Transfer, 137, 23-28, 2014年, 査読有り - Influence of Plasma-Neutral Collisions on Probe Measurements in Atmospheric Pressure Plasmas
N. Ezumi, K. Takahashi, T. Yoshida, Y. Hatada, Y. Hayashi, C. Uchiyama, S. Iio, K. Sawada, N. Ohno, Zh. Kiss'ovski
Contributions to Plasma Physics, 54, 304–307, 2014年, 査読有り - Coordinated Research Projects (CRP) (小特集 IAEAにおける原子分子データ Coordinated Research Projects (CRP))
高木 秀一;小池 文博;中村 信行;坂上 裕之;澤田 圭司;後藤 基志;加藤 太治;芦川 直子;西村 好史;齋藤 純;横川 大輔;周 建斌;WITEK Henryk A.;IRLE Stephan
プラズマ・核融合学会誌, 89(9), 583-599, 2013年09月 - Influence of the Probe Electrode on Probe Measurements for Atmospheric Pressure Microwave Plasma Torch
N. Ezumi, N. Kodama, K. Akahane, S. Shiozawa, K. Sawada, N. Ohno
Contrib. Plasma Phys., 53, 81-85, 2013年, 査読有り - Deuterium atomic density estimation in recombining plasmas using self‐absorption spectroscopy
S. Kajita, T. Nishiwaki, N. Ohno, Noriyasu, K. Sawada, M. Takagi
IEEJ Transactions on Electrical and Electronic Engineering, 8, 1-6, 2013年, 査読有り - Optical Emission and Mass Spectra Observations during Hydrogen Combustion in Atmospheric Pressure Microwave Plasma
N. Ezumi, K. Akahane, K. Sawada, Y. Tanaka, M. Tanaka, T. Uda and K. Nishimura
Plasma and Fusion Research, 7, 2401075, 2012年, 査読有り - Spectroscopic diagnostic of helium-hydrogen rf plasma under the influence of radiation trapping
K. Sawada, M. Goto, N. Ezumi
Plasma and Fusion Res., 6, 1401010, 2011年, 査読有り - Evaluation of hydrogen atom density in the plasma core regionbased on the Balmer-αline profile
M. Goto, K. Sawada, K. Fujii, M. Hasuo, S. Morita
Nucl. Fusion, 51, 23005, 2011年, 査読有り - A Collisional-Radiative Model for Hydrogen Atom Including Velocity Changing Collisions
Keisuke FUJII, Taiichi SHIKAMA, Keiji SAWADA, Motoshi GOTO, Shigeru MORITA and Masahiro HASUO
Plasma and Fusion Research, 6, 2401125, 2011年, 査読有り - Atomic and molecular processes with lithium in peripheral plasmas
I. Murakami, D. Kato, Y. Hirooka, K. Sawada
Fusion Engineering and Design, (85), 854–857, 2010年, 査読有り - Magnetic axial dependency of Hα emission location in peripheral plasmas of Large Helical Device as determined by plasma polarization spectroscopy
A. Iwamae, A. Sakaue, N. Neshi, J. Yanagibayashi, M. Hasuo, D. Nakamura, K. Sawada, M. Goto, S. Morita
Plasma and Fusion Res., 5, 032, 2010年, 査読有り - FDTD simulation on plasmon in gold nanorod excited by scanning near field optical microscopy
K. Sawada, H. Nakamura, T. Maruoka, Y. Tamura, K. Imura, T. Saiki, H. Okamoto
Plasma and Fusion Res., 5, S2110, 2010年, 査読有り - Collisional-radiative model for spectroscopic diagnostic of optically thick helium plasma
K. Sawada, Y. Yamada, T. Miyachika, N.Ezumi, A. Iwamae, M. Goto
Plasma and Fusion Res., 5, 001, 2010年, 査読有り - Development of multiwavelength-range fine-resolution spectrometer for hydrogen emissions and its applicationto large helical device periphery plasmas
K. Fujii, K. Mizushiri, T. Nishioka, T. Shikama, A. Iwamae, M. Goto, S. Morita,S Kado, K. Sawada, M. Hasuo
Rev. Sci. Instrum., 81(3), 033106, 2010年, 査読有り
- Alignment creation and deviation from statistical population distribution in hydrogenn = 3 levels observed on MSE spectra of LHD plasma
A. Iwamae, A. Sakaue, M. Atake, K. Sawada, M. Goto, S. Morita
Plasma Phys. Control. Fusion, 51, 115004, 2009年, 査読有り - Spatial structure of volume recombination in JT-60U detached divertor plasmas
K. Fujimoto, T. Nakano, H. Kubo, K. Sawada, T. Takizuka, H. Kawashima, K. Shimizu, N. Asakura
Plasma and Fusion Res., 4, 025, 2009年, 査読有り - Simulation of electric quadrupole and magnetic dipole transition efficiencies in optical near fields generated by a subwavelength slit array
K. Deguchi, M. Okuda, A. Iwamae, H. Nakamura, K. Sawada and M. Hasuo
J. Phys. Soc. Jpn., 78, 024301, 2009年, 査読有り - Modification of tomography technique for two-dimensional spectroscopic measurement in JT-60U divertor plasmas
K. Fujimoto, T. Nakano, H. Kubo, K. Sawada, T. Takizuka, K. Shimizu, H. Kawashima,N. Asakura
Plasma and Fusion Res., 2, S1121, 2007年, 査読有り - Contribution of hydrogen molecular assisted recombination processes to population of hydrogen atom in divertor simulator MAP-II
A. Okamoto, S. Kado, K. Sawada, Y. Kuwahara, Y. Iida, S. Tanaka
J. Nucl. Mater., 363-365, 395-399, 2007年, 査読有り - Detailed atomic, molecular and radiation kinetics in current 2D and 3D edge plasmafluid codes
D. Reiter, V. Kotov, P. Börner, K. Sawada, R.K. Janev, B. Kuppers
363-365, 649-657, 2007年, 査読有り - Surface temperature effects on hydrogen and impurity release from the limiter studied by means of visible and near infrared spectroscopic measurement in TRIAM-1M
R. Bhattacharyay, H. Zushi, K. Nakashima, T. Shikama, M. Sakamoto, M. Ogawa, K. Nakamura, N. Yoshida, S. Kado, K. Sawada, Y. Hirooka, K. Hanada, K.N. Sato, H. Idei, K. Sasaki, H. Xu, M. Hasegawa, K. Uehara, A. Tsushima, N. Kimura, Y. Nozaki, S. Kawasaki, H. Nakashima, A. Higashijima
J. Nucl. Mater., 363-365, 938-943, 2007年, 査読有り - FDTD modeling of polarization near-field scanning optical microscope
K. Sawada, M. Sakai, Y. Kohashi, T. Saiki and H. Nakamura
J. Plasma Physics, 72, 1019-1023, 2006年, 査読有り - Iterative numerical method for inclusion of radiation trapping into collisional-radiative model
K. Sawada
J. Plasma Physics, 72, 1025-1029, 2006年, 査読有り - Simulation of optical near field of a sub-wavelength gold slit array and its electric quadrupole interactionwith 1s excitons in Cu2O
M. Okuda, K. Deguchi, A. Iwamae, N. Nakamura, K. Sawada, M. Hasuo
Phys. Stat. Sol., c 3, 3547-3552, 2006年, 査読有り - FDTD modeling of a polarization near-field scanning optical microscope
Sawada, K; Sakai, M; Kohashi, Y; Saiki, T; Nakamura, H
JOURNAL OF PLASMA PHYSICS, 72, 1019-1023, 2006年, 査読有り - Iterative numerical method for the inclusion of radiation trapping into a collisional-radiative model
Sawada, K
JOURNAL OF PLASMA PHYSICS, 72, 1025-1029, 2006年, 査読有り - Spectroscopic study of hydrogen particlebehavior in attached and detached divertor plasmas of JT-60U
H. Kubo, H. Takenaga, K. Sawada, T. Nakano, S.Kobayashi, S.Higashijima, N. Asakura, K. Shimizu
J. Nucl. Mater., 337-339, 161-165, 2005年 - Determinationof the hydrogen and helium ion densities in the initial and final stages of a plasma in the Large Helical Device by optical spectroscopy
Goto, M; Morita, S; Sawada, K; Fujimoto, T; Yamamoto, S; Miyazawa, J; Yamada, H; Toi, K
PHYSICS OF PLASMAS, 10(5), 1402-1410, 2003年, 査読有り - FDTD analysis of a near-field optical fiber probe with a double tapered structure
Sawada, K; Nakamura, H; Kambe, H; Saiki, T
IEICE Transactions on Electronics, E85C(12), 2055-2058, 2002年, 査読有り - Effect of initial vibrational excitation of molecular hydrogen on molecular assisted recombination in divertor plasmas
Sawada, K; Fujimoto, T
Contributions to Plasma Physics, 42(6-7), 603-607, 2002年, 査読有り - Relations between the ionization or recombination flux and the emission radiation for hydrogen and helium in plasma
Goto, M; Sawada, K; Fujimoto, T
PHYSICS OF PLASMAS, 9(10), 4316-4324, 2002年, 査読有り - Emission radiation of hydrogen and helium atoms and ions a plasma
Goto, M; Sawada, K; Fujimoto, T
Contributions to Plasma Physics, 42(2-4), 212-217, 2002年, 査読有り - Spatial resolution of near-field scanning optical microscopy with sub-wavelength aperture
Nakamura, H; Sawada, K; Kambe, H; Saiki, T; Sato, T
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, (138), 173-174, 2000年, 査読有り - Ultraviolet photoemission studies of valence bands in lead halides
Itoh, M; Shiokawa, T; Sawada, K; Kamada, M
Journal of the Physical Society of Japan, 67(6), 2140-2141, 1998年, 査読有り - Phonon broadening of line widths of Auger-free luminescence in wide-gap ionic crystals
Itoh, M; Sawada, K; Hara, H; Ohno, N; Kamada, M
JOURNAL OF LUMINESCENCE, 72-4, 762-764, 1997年, 査読有り - Effective ionization and dissociation rate coefficients of molecular hydrogen in plasma (vol 78, pg 2913, 1995)
Sawada, K; Fujimoto, T
JOURNAL OF APPLIED PHYSICS, 80(1), 606-606, 1996年, 査読有り - EFFECTIVE IONIZATION AND DISSOCIATION RATE COEFFICIENTS OF MOLECULAR-HYDROGEN IN PLASMA
Sawada, K; Fujimoto, T
JOURNAL OF APPLIED PHYSICS, 78(5), 2913-2924, 1995年, 査読有り
講演・口頭発表等
- Collisional-radiative model of molecular hydrogen
Keiji Sawada
IAEA CRP on atomic and molecular data for state-resolved modelling of hydrogen and helium and their isotopes in fusion plasma, 2016年, IAEA CRP on atomic and molecular data for state-resolved modelling of hydrogen and helium and their isotopes in fusion plasma, 招待有り - Revision of Collisional-Radiative Models and Neutral-Transport Code for Hydrogen and Helium Species
Keiji Sawada
IAEA first Research Coordination Meeting on Atomic and Molecular Data for State-Resolved Modelling of Hydrogen and Helium and Their Isotopes in Fusion Plasma, 2011年, IAEA first Research Coordination Meeting on Atomic and Molecular Data for State-Resolved Modelling of Hydrogen and Helium and Their Isotopes in Fusion Plasma, 招待有り
