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澤田圭司  サワダ ケイジ

教員組織学術研究院(工学系)電話番号
教育組織工学部 工学基礎部門FAX番号
職名教授メールアドレス
住所〒380-8553 長野市若里4-17-1ホームページURL

更新日:2020/07/07

プロフィール

兼担研究科・学部
大学院工学系研究科
大学院総合工学系研究科
研究分野
プラズマ科学
現在の研究課題
核融合プラズマの分光学的研究
キーワード:プラズマ , 分光学 , 衝突輻射モデル , 核融合
所属学会
所属学会
日本物理学会
プラズマ・核融合学会
応用物理学会
学歴
出身大学院
1994 , 京都大学
1989 , 京都大学

出身学校・専攻等(大学院を除く)
1987 , 京都大学

取得学位
博士(工学) , 京都大学
研究職歴等
研究職歴
2011- , 信州大学 教授
1997- , 信州大学 助教授
1994- , 信州大学 講師

研究職歴以外の職歴
1989-1991 , 三菱電機

研究活動業績

研究業績(著書・
発表論文等)
論文
Impact of additional plasma heating on detached plasma formation in divertor simulation experiments using the GAMMA 10/PDX tandem mirror
Nuclear Materials and Energy,18:216-221 2019
Author: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


Hydrogen recycling study with a high temperature target in the divertor simulation experiment in GAMMA 10 / PDX
Plasma and Fusion Research,13:3402096 2018
Author:Akihiro TERAKADO, Mizuki SAKAMOTO, Naomichi EZUMI, Kunpei NOJIRI, Tomohiro MIKAMI, Satoshi TOGO, Takaaki IIJIMA, Takayuki YOKODO, Keiji SAWADA


Molecular activated recombination in divertor simulation plasma on GAMMA 10/PDX
Nuclear Materials and Energy,12:1004-1009 2017
Author: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


Rovibrationally Resolved Time-Dependent Collisional-Radiative Model of Molecular Hydrogen and Its Application to a Fusion Detached Plasma
Atoms,4(4):29 2016
Author:Keiji Sawada and Motoshi Goto


Photon Trapping Effects in DEMO Divertor Plasma
Contrib. Plasma Phys,56:657–662 2016
Author:K. Hoshino, K. Sawada, R. Idei, S. Tokunaga, N. Asakura, K. Shimizu, N. Ohno


Particle source and edge confinement study based on spectroscopic diagnosis in the LHD
Plasma Physics and Controlled Fusion,58:84001-84005 2016
Author:M. Goto, K. Sawada, T. Oishi, S. Morita


Energy Density Dependence of Hydrogen Combustion Efficiency in Atmospheric Pressure Microwave Plasma
Fusion Science and Technology,67:650-653 2015
Author:T. Yoshida, N. Ezumi, K. Sawada, Y. Tanaka, M. Tanaka, K. Nishimura


Hydrogen atomic and molecular emission locations and intensities in the LHD edge plasma determined from simultaneously observed polarization spectra
Plasma and Fusion Research,10:3402041-1-5 2015
Author:K. Fujii, K. Sawada, M Goto, S. Morita, M. Hasuo


Influence of Plasma-Neutral Collisions on Probe Measurements in Atmospheric Pressure Plasmas
Contributions to Plasma Physics,54:304–307 2014
Author:N. Ezumi, K. Takahashi, T. Yoshida, Y. Hatada, Y. Hayashi, C. Uchiyama, S. Iio, K. Sawada, N. Ohno, Zh. Kiss'ovski


Determination of electron temperature and density at plasma edge in the Large Helical Device with opacity-incorporated helium collisional-radiative model
Journal of Quantitative Spectroscopy and Radiative Transfer,137:23-28 2014
Author:M. Goto, K. Sawada


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
Plasma and Fusion Research,9:1401011 2014
Author:Takanori Shibata, Mieko Kashiwagi, Akiyoshi Hatayama, Keiji Sawada, Takashi Inoue, Masaya Hanada


Deuterium atomic density estimation in recombining plasmas using self‐absorption spectroscopy
IEEJ Transactions on Electrical and Electronic Engineering,8:1-6 2013
Author:S. Kajita, T. Nishiwaki, N. Ohno, Noriyasu, K. Sawada, M. Takagi


Influence of the Probe Electrode on Probe Measurements for Atmospheric Pressure Microwave Plasma Torch
Contrib. Plasma Phys.,53:81-85 2013
Author:N. Ezumi, N. Kodama, K. Akahane, S. Shiozawa, K. Sawada, N. Ohno


Optical Emission and Mass Spectra Observations during Hydrogen Combustion in Atmospheric Pressure Microwave Plasma
Plasma and Fusion Research,7:2401075 2012
Author:N. Ezumi, K. Akahane, K. Sawada, Y. Tanaka, M. Tanaka, T. Uda and K. Nishimura


Evaluation of hydrogen atom density in the plasma core regionbased on the Balmer-αline profile
Nucl. Fusion,51:23005 2011
Author:M. Goto, K. Sawada, K. Fujii, M. Hasuo, S. Morita


Spectroscopic diagnostic of helium-hydrogen rf plasma under the influence of radiation trapping
Plasma and Fusion Res.,6:1401010-1-9 2011
Author:K. Sawada, M. Goto, N. Ezumi


Collisional-radiative model for spectroscopic diagnostic of optically thick helium plasma
Plasma and Fusion Res.,5:01-1-7 2010
Author:K. Sawada, Y. Yamada, T. Miyachika, N.Ezumi, A. Iwamae, M. Goto


Development of multiwavelength-range fine-resolution spectrometer for hydrogen emissions and its applicationto large helical device periphery plasmas
Rev. Sci. Instrum.,81(3):033106-1-4 2010
Author:K. Fujii, K. Mizushiri, T. Nishioka, T. Shikama, A. Iwamae, M. Goto, S. Morita,S Kado, K. Sawada, M. Hasuo


FDTD simulation on plasmon in gold nanorod excited by scanning near field optical microscopy
Plasma and Fusion Res.,5:S2110-1-4 2010
Author:K. Sawada, H. Nakamura, T. Maruoka, Y. Tamura, K. Imura, T. Saiki, H. Okamoto


Magnetic axial dependency of Hα emission location in peripheral plasmas of Large Helical Device as determined by plasma polarization spectroscopy
Plasma and Fusion Res.,5:032-1-8 2010
Author:A. Iwamae, A. Sakaue, N. Neshi, J. Yanagibayashi, M. Hasuo, D. Nakamura, K. Sawada, M. Goto, S. Morita


Atomic and molecular processes with lithium in peripheral plasmas
Fusion Engineering and Design,(85):854–857 2010
Author:I. Murakami, D. Kato, Y. Hirooka, K. Sawada


Simulation of electric quadrupole and magnetic dipole transition efficiencies in optical near fields generated by a subwavelength slit array
J. Phys. Soc. Jpn.,78:024301-1-4 2009
Author:K. Deguchi, M. Okuda, A. Iwamae, H. Nakamura, K. Sawada and M. Hasuo


Spatial structure of volume recombination in JT-60U detached divertor plasmas
Plasma and Fusion Res.,4:025-1-7 2009
Author:K. Fujimoto, T. Nakano, H. Kubo, K. Sawada, T. Takizuka, H. Kawashima, K. Shimizu, N. Asakura


Alignment creation and deviation from statistical population distribution in hydrogenn = 3 levels observed on MSE spectra of LHD plasma
Plasma Phys. Control. Fusion,51:115004-1-15 2009
Author:A. Iwamae, A. Sakaue, M. Atake, K. Sawada, M. Goto, S. Morita


Surface temperature effects on hydrogen and impurity release from the limiter studied by means of visible and near infrared spectroscopic measurement in TRIAM-1M
J. Nucl. Mater.,363-365:938-943 2007
Author: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


Detailed atomic, molecular and radiation kinetics in current 2D and 3D edge plasmafluid codes
,363-365:649-657 2007
Author:D. Reiter, V. Kotov, P. Börner, K. Sawada, R.K. Janev, B. Kuppers


Contribution of hydrogen molecular assisted recombination processes to population of hydrogen atom in divertor simulator MAP-II
J. Nucl. Mater.,363-365:395-399 2007
Author:A. Okamoto, S. Kado, K. Sawada, Y. Kuwahara, Y. Iida, S. Tanaka


Modification of tomography technique for two-dimensional spectroscopic measurement in JT-60U divertor plasmas
Plasma and Fusion Res.,2:S1121-1-4 2007
Author:K. Fujimoto, T. Nakano, H. Kubo, K. Sawada, T. Takizuka, K. Shimizu, H. Kawashima,N. Asakura


Simulation of optical near field of a sub-wavelength gold slit array and its electric quadrupole interactionwith 1s excitons in Cu2O
Phys. Stat. Sol.,c 3:3547-3552 2006
Author:M. Okuda, K. Deguchi, A. Iwamae, N. Nakamura, K. Sawada, M. Hasuo


Iterative numerical method for inclusion of radiation trapping into collisional-radiative model
J. Plasma Physics,72:1025-1029 2006
Author:K. Sawada


FDTD modeling of polarization near-field scanning optical microscope
J. Plasma Physics,72:1019-1023 2006
Author:K. Sawada, M. Sakai, Y. Kohashi, T. Saiki and H. Nakamura


Iterative numerical method for the inclusion of radiation trapping into a collisional-radiative model
JOURNAL OF PLASMA PHYSICS,72:1025-1029 2006
Author:Sawada, K


FDTD modeling of a polarization near-field scanning optical microscope
JOURNAL OF PLASMA PHYSICS,72:1019-1023 2006
Author:Sawada, K; Sakai, M; Kohashi, Y; Saiki, T; Nakamura, H


Spectroscopic study of hydrogen particlebehavior in attached and detached divertor plasmas of JT-60U
J. Nucl. Mater.,337-339:161-165 2005
Author:H. Kubo, H. Takenaga, K. Sawada, T. Nakano, S.Kobayashi, S.Higashijima, N. Asakura, K. Shimizu


Determinationof the hydrogen and helium ion densities in the initial and final stages of a plasma in the Large Helical Device by optical spectroscopy
PHYSICS OF PLASMAS,10(5):1402-1410 2003
Author:Goto, M; Morita, S; Sawada, K; Fujimoto, T; Yamamoto, S; Miyazawa, J; Yamada, H; Toi, K


Emission radiation of hydrogen and helium atoms and ions a plasma
CONTRIBUTIONS TO PLASMA PHYSICS,42(2-4):212-217 2002
Author:Goto, M; Sawada, K; Fujimoto, T


Relations between the ionization or recombination flux and the emission radiation for hydrogen and helium in plasma
PHYSICS OF PLASMAS,9(10):4316-4324 2002
Author:Goto, M; Sawada, K; Fujimoto, T


Effect of initial vibrational excitation of molecular hydrogen on molecular assisted recombination in divertor plasmas
CONTRIBUTIONS TO PLASMA PHYSICS,42(6-7):603-607 2002
Author:Sawada, K; Fujimoto, T


FDTD analysis of a near-field optical fiber probe with a double tapered structure
IEICE TRANSACTIONS ON ELECTRONICS,E85C(12):2055-2058 2002
Author:Sawada, K; Nakamura, H; Kambe, H; Saiki, T


Spatial resolution of near-field scanning optical microscopy with sub-wavelength aperture
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT,(138):173-174 2000
Author:Nakamura, H; Sawada, K; Kambe, H; Saiki, T; Sato, T


Ultraviolet photoemission studies of valence bands in lead halides
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN,67(6):2140-2141 1998
Author:Itoh, M; Shiokawa, T; Sawada, K; Kamada, M


Phonon broadening of line widths of Auger-free luminescence in wide-gap ionic crystals
JOURNAL OF LUMINESCENCE,72-4:762-764 1997
Author:Itoh, M; Sawada, K; Hara, H; Ohno, N; Kamada, M


Effective ionization and dissociation rate coefficients of molecular hydrogen in plasma (vol 78, pg 2913, 1995)
JOURNAL OF APPLIED PHYSICS,80(1):606-606 1996
Author:Sawada, K; Fujimoto, T


EFFECTIVE IONIZATION AND DISSOCIATION RATE COEFFICIENTS OF MOLECULAR-HYDROGEN IN PLASMA
JOURNAL OF APPLIED PHYSICS,78(5):2913-2924 1995
Author:SAWADA, K; FUJIMOTO, T


学会発表
Collisional-radiative model of molecular hydrogen
IAEA CRP on atomic and molecular data for state-resolved modelling of hydrogen and helium and their isotopes in fusion plasma 2016
Author:Keiji Sawada


Revision of Collisional-Radiative Models and Neutral-Transport Code for Hydrogen and Helium Species
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
Author:Keiji Sawada

教育活動実績

授業等
2013 , 解析力学
2013 , 電磁気学
2013 , 統計熱力学
2013 , 物理学実験