Osaka Univ. Ueda lab, Graduate School of Engineering Division of Electrical, Electronic and Information Engineering

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2020年

プラズマ対向機器における総括熱流応答の解明
横峯健彦,上田良夫,徳永和俊,結城和久,秋吉優史,伊庭野健造
Journal of Plasma and Fusion Research,Volume 96, No. 3(2020), pp.131-135

Elastic constants of beta tungsten thin films studied by picosecond ultrasonics and density functional theory
A Nagakubo, HT Lee, H Ogi, T Moriyama, T Ono
Applied Physics Letters 116 (2), 021901

Cost analysis and energy return on investment of fuel cell and gas turbine integrated fusion-biomass hybrid system; application of a small scale conceptual fusion reactor GNOME
Hoseok Nam, Kenzo Ibano, Satoshi Konishi
Energy, 2020, 117825

Fabrication and Characterization of Ultra‐Lightweight, Compact, and Flexible Thermoelectric Device Based on Highly Refined Chip Mounting 
Yusufu Ekubaru, Tohru Sugahara, Kenzo Ibano, Aiji Suetake, Maki Tsurumoto, Noriko Kagami, Katsuaki Suganuma
Advanced Materials Technologies, 2020, 2901128

2019年

Micro-and macro-elastic properties of tungsten fiber-reinforced tungsten composites probed by nano-indentation and laser ultrasonics
HT Lee, S Ando, JW Coenen, Y Mao, R Kasada, J Riesch, Y Ueda
Nuclear Materials and Energy 19, 262-266, 2019

A 6 MW/m2 High Heat Flux Testing Facility of Irradiated Materials Using Infrared Plasma-Arc Lamps  
Sabau, A.S. Email Author , Tokunaga, K., Littleton, M.G., Kiggans, J.O., Jr., Schaich, C.R., Dinwiddie, R.B., Moore, D.T., Ueda, Y., Katoh, Y.
Fusion Science and Technology, Volume 75, Issue 7, 3 October 2019, Pages 690-701 

Behavior of tungsten under irradiation and plasma interaction    
Rieth, M., Doerner, R., Hasegawa, A., Ueda, Y., Wirtz, M.
Journal of Nuclear Materials, Volume 519, June 2019, Pages 334-368  

Evaluation of Marangoni convection and free surface velocity of molten tungsten for tungsten divertor   
Hamaguchi, K. , Hoashi, E., Okita, T., Ibano, K., Ueda, Y.
Fusion Engineering and Design , Volume 140, March 2019, Pages 117-122 

Spontaneous Ion Temperature Gradient in Inhomogeneous Magnetic Fields and Its Effect on the Parallel Heat Transport 
Satoshi TOGO, Tomonori TAKIZUKA, Mizuki SAKAMOTO, Naomichi EZUMI, Yuichi OGAWA, Kenzo IBANO, Kunpei NOJIRI, Takaaki IIJIMA, Yosuke KINOSHITA, Toshiki HARA and Yousuke NAKASHIMA  
Plasma and Fusion Research, Vol. (2019) 2403010 (5pp)

Extension of the Ingenious Electrostatic Model to Electromagnetic Model for Large-Scale Plasma Simulation with Self-Consistent Electron Dynamics
Tomonori TAKIZUKA, Kenzo IBANO and Masatoshi YAGI 
Plasma and Fusion Research, Vol. 14 (2019) 1203091 (2pp)

LIBS measurement of trace tantalum and rhenium in tungsten for in-situ diagnostic of nuclear transmutation
Kenzo Ibano, Daisuke Nishijima, Yoshio Ueda, Russell P. Doerner
Journal of Nuclear Materials, Vol. 522, 15 (2019) 324-328

Self-consistent simulation of supersonic plasma flows in advanced divertors 
Satoshi Togo, Tomonori Takizuka, Dirk Reiser, Mizuki Sakamoto, Naomichi Ezumi, Yuichi Ogawa, Kunpei Nojiri, Kenzo Ibano, Yue Li and Yousuke Nakashima
Nuclear Fusion, Vol. 59, 7 (2019) 076041

Estimation of suppressed erosion by vapor shielding at Be and W walls under transient loads
Kenzo IbanoYusuke KikuchiSatoshi TogoYoshio Ueda and Tomonori Takizuka
Nuclear Fusion, Vol.59, 7 (2019) 076001

Characteristics of plasma flow profiles in a super-X-divertor-like configuration 
Satoshi Togo, Tomonori Takizuka, Dirk Reiser, Mizuki Sakamoto, Yuichi Ogawa, Naomichi Ezumi, Kenzo Ibano, Kunpei Nojiri, Yue Li, Yousuke Nakashima
Nuclear Materials and Energy,Volume 19 (2019),Pages 149–154

2018年

First principle calculations of energy of agglomerated helium in the period 6 elements
K.Omori, A.M.Ito, I.Mun, N.Yamashita, K.Ibano, H.T.Lee, Y.Ueda
Nuclear Materials and Energy,Volume 16 (2018),Pages 226–229

Surface morphology changes of silicon carbide by helium plasma irradiation
N.Yamashita,K.Omori,Y.Kimura,T.Hinoki,K.Ibano,H.T.Lee,Y.Ueda
Nuclear Materials and Energy,Volume 16 (2018),Pages 145–148

Surface morphology of Tungsten-F82H after high-heat flux testing using plasma-arc lamps
K.Ibano,A.S.Sabau,K.Tokunaga,M.Akiyoshi,J.O.Kiggans,G.R.Schaich,Y.Katoh,Y.Ueda
Nuclear Materials and Energy, Volume16 (2018) ,Pages 128–132

Ethanol gas sensing performance of high-dimensional fuzz metal oxide nanostructure
Kenzo Ibano,Yoshihiro Kimura,Tohru Sugahara,Heun Tae Lee and Yoshio Ueda
Japanese Journal of Applied Physics,Volume 57, Number 4,040316

Laser-induced breakdown spectroscopy measurement of a small fraction of rhenium in bulk tungsten
D.Nishijima,Y.Ueda,R.P.Doerner,M.J.Baldwin,K.Ibano
Spectrochimica Acta Part B:Atomic Spectroscopy,Volume 141,Pages 94-98

Stable sustainment of plasmas with electron internal transport barrier by ECH in the LHD
Y Yoshimura,H Kasahara,M Tokitani,R Sakamoto,Y Ueda,N B Marushchenko,R Seki,S Kubo,T Shimozuma,H Igami,H Takahashi,T I Tsujimura, R Makino,S Kobayashi, S Ito, Y Mizuno,K Okada, T Akiyama,K Tanaka,T Tokuzawa,I Yamada,H Yamada,T Mutoh,Y Takeiri and the LHD Experiment Group
Plasma Physics and Controlled Fusion,Volume 60,Issue 2,025012

A Coulomb collision model for weighted particle simulations with energy and momentum conservation
A.Tanaka,K.Ibano,T.Takizuka,Y.Ueda
Contributions to Plasma Physics, volume 58, (2018), Pages 451-456

Spectroscopic study of hydrogen reflection at modified tungsten surface 
 Doi, K., Lee, H.T., Tanaka, N., Yamaoka, H., Ueda, Y., Wada, M.   
Fusion Engineering and Design, Volume 136, Part A, November 2018, Pages 100-105

Development of a simulation method for evaluating Marangoni convection with free surface for tungsten divertor
Kohei Hamaguchi, Yu Teramoto, Eiji Hoashi, Takafumi Okita, Kenzo Ibano, Yoshio Ueda    
Fusion Engineering and Design, 136A, (2018) 270-275

Study on melting and solidification behaviors of tungsten loaded by high heat flux for divertor in tokamak fusion reactor
Hoashi, E., Kuroyanagi, S., Okita, T., Maeji, T., Ibano, K., Ueda, Y.  
Fusion Engineering and Design, 136A, (2018) 350-356

Systematic study of He induced nano-fiber formation of W and other period 6 transition metals
Y.Ueda,N.Yamashita,K.Omori,H.T.Lee,K.Ibano,A.M.Ito
Journal of Nuclear Materials, Volume 511, 1 December 2018, Pages 605-609

An action plan of Japan toward development of demo reactor
Kunihiko Okano, Ryuta Kasada, Yasushi Ikebe, Yasutomo Ishii, Kyoko Oba, Mieko Kashiwagi, Ryuichi Sakamoto, Naoki Sawa, Hidenobu Takenaga, Arata Nishimura, Masaru Fukuie, Shinsuke Fujioka, Yoshio Ueda, Tsuyoshi Akiyama
Fusion Engineering and Design,Volume 136, Part A, November 2018, Pages 183-189

Plasma exhaust and divertor studies in Japan and Europe broader approach, DEMO design activity
Asakura,N.,Hoshino,K.,Utoh,H.,Someya,Y.,Suzuki,S.,Bachmann,C.,Reimerdes,H.,Wenninger,R.,Kudo,H.Tokunaga,S.,Homma,Y.,Sakamoto,Y.,Hiwatari,R.,Tobita,K.,You,J.-H.,Federici,G.,Ezato,K.,Seki,Y.,Ueda,Y.,Ohno,N.
Fusion Engineering and Design,Volume 136, Part B, November 2018, Pages 1214-1220

Simulation study on the vapour shielding at solid walls under transient heat loads using weighted particle model
K. Ibano, Y. Kikuchi, A. Tanaka, S. Togo, H. T. Lee, Y. Ueda, T. Takizuka
Contributions to Plasma Physics, Volume58, Issue6-8 (2018) Pages 594-601

Study of mirror effect on scrape‐off layer‐divertor plasma based on a generalized fluid model incorporating ion temperature anisotropy
S.Togo, T.Takizuka, D.Reiser, K.Hoshino, K.Ibano, Y. Li, Y.Ogawa, M.Sakamoto, N.Ezumi, Y.Nakashima
Contributions to Plasma Physics, Volume58, Issue6-8 (2018) Pages 556-562

An Ingenious Plasma Simulation Model for Large-scale System with
Self-consistent Electron Dynamics

Tomonori TAKIZUKA, Kenzo IBANO and Masatoshi YAGI
Plasma and Fusion Research: Rapid Communications,Volume 13(2018)

第6周期と第5周期の遷移金属におけるヘリウム誘起ナノ構造の発生
上田良夫,大森晃平,伊庭野健造,伊藤篤史
Journal of Plasma and Fusion Research,Volume 94, No. 6(2018), pp.320-324

2017年

PHENIX計画の概要
上田良夫,波多野雄治,横峯健彦,檜木達也,長谷川晃,大矢恭久,室賀健夫
Journal of Plasma and Fusion Research,Volume 93, No. 3(2017), pp.127-145

プラズマ対向機器における総括熱流応答の解明
横峯健彦,上田良夫,徳永和俊,結城和久,秋吉優史,伊庭野健造
Journal of Plasma and Fusion Research,Volume 93, No. 3(2017), pp.127-145

中性子照射計画
檜木達也,長谷川 晃,福田 誠,田中照也,大矢恭久,波多野雄治,上田良夫
Journal of Plasma and Fusion Research,Volume 93, No. 3(2017), pp.127-145

トリチウム挙動および中性子照射効果
大矢恭久,波多野雄治,片山一成,山内有二,信太祐二,大塚哲平,近田拓未,原 正憲,大宅 諒,上田良夫,外山 健
Journal of Plasma and Fusion Research,Volume 93, No. 3(2017), pp.127-145

まとめと今後の研究計画
上田良夫,波多野雄治,横峯健彦,檜木達也,長谷川晃,大矢恭久,室賀健夫
Journal of Plasma and Fusion Research,Volume 93, No. 3(2017), pp.127-145

Recent R&D Results on Fusion Nuclear Technology for ITER and DEMO Reactor in Japan
Toshihiko Yamanishi, Norikiyo Koizumi, Masataka Nakahira, Yoshihiko Nunoya, Satoshi Suzuki, Hiroyuki Tobari, Mieko Kashiwagi, Takaaki Isono, Takashi Inoue, Makoto Sugimoto, Yoshinori Kusama, Yoshinori Kawamura, Hiroyasu Tanigawa, Masaru Nakamichi, Takashi Nozawa, Tsuyoshi Hoshino, Yoshio Ueda, Yuji Hatano, Takeo Muroga & Satoshi Fukada
Fusion Science and Technology,Volume 72, Issue 3, October 2017, Pages 233-241

Current status of large helical device and its prospect for deuterium experiment
M. Osakabe, Y. Takeiri, T. Morisaki, G. Motojima, K. Ogawa, M. Isobe, M. Tanaka, S. Murakami, A. Shimizu, K. Nagaoka, H. Takahashi, K. Nagasaki, H. Takahashi, T. Fujita, Y. Oya, M. Sakamoto, Y. Ueda, T. Akiyama, H. Kasahara, S Sakakibara, R. Sakamoto, M. Tokitani, H. Yamada, M. Yokoyama, Y. Yoshimura & LHD Experiment Group
Fusion Science and Technology ,Volume 72, Issue 3, October 2017, Pages 199-210

Molten layer characteristics of W materials and film coated W by pulsed laser irradiation
Daisuke Inoue, Kenzo Ibano, Satoru Yoshikawa, Takeru Maeji, Yoshio Ueda
Fusion Engineering and Design,124,pp.316-320

Erosion and morphology changes of F82H steel under simultaneous hydrogen and helium irradiation
K.Yakushiji, H.T.Lee, M.Oya, M.Tokitani, A.Sagara, Y.Hamaji, K.Uenishi, K.Ibano, Y.Ueda
Fusion Engineering and Design,124,pp.356-359

Laser energy absorption coefficient and in-situ temperature measurement of laser-melted tungsten
T.Maeji, K.Ibano, S.Yoshikawa, D.Inoue, S.Kuroyanagi, K.Mori, E.Hoashi, K.Yamanoi, N.Sarukura, Y.Ueda
Fusion Engineering and Design,124,pp.287-291

Effect of periodic deuterium ion irradiation on deuterium retention and blistering in Tungsten
Oya,M., Lee,H.T., Hara,A., Ibano,K., Oyaidzu,M., Hayashi,T., Ueda,Y.
Nuclear Materials and Energy,12,pp.674-677

Observation and particle simulation of vaporized W, Mo, and Be in PISCES-B plasma for vapor-shielding studies
Ibano,K., Nishijima,D., Yu,J.H., Baldwin,M.J., Doerner,R.P., Takizuka,T., Lee,H.T., Ueda,Y.
Nuclear Materials and Energy,12,pp.278-282

Initial growth phase of W-fuzz formation in ultra-long pulse helium discharge in LHD
M. Tokitani, S. Masuzaki, H. Kasahara, Y. Yoshimura, R. Sakamoto, N. Yoshida, Y. Ueda, T. Mutoh, S. Nagata
Nuclear Materials and Energy,12,pp.1358-1362

Damage and deuterium retention of re-solidified tungsten following vertical displacement event-like heat load
Y.Hamaji, H.T.Lee, A.Kreter, S.Möller, M.Rasinski, M.Tokitani, S.Masuzaki, A.Sagara, M.Oya, K.Ibano, Y.Ueda, R.Sakamoto
Nuclear Materials and Energy (2016),12,pp.1303-1307

レーザー超音波法によるその場診断
(小特集 プラズマ対向材料表面のその場診断)
LEE Heun Tae,安藤 颯介
プラズマ・核融合学会誌, 93(11), 515-520, (2017)

ベーパーシールディングにおける重相構造プラズマのPICシミュレーション
(小特集 重相構造プラズマの形成がもたらすベーパーシールディング効果)
伊庭野 健造, 滝塚 知典
プラズマ・核融合学会誌, 93(8), 371-374, (2017)

Longitudinal and shear wave velocities in pure tungsten and tungsten fiber-reinforced tungsten composites
H T Lee, S Ando, J W Coenen , Y Mao , J Riesch , H Gietl , R Kasada, Y Hamaji, K Ibano and Y Ueda
Physica Scripta,T170,014024

Studies of power exhaust and divertor design for a 1.5 GW-level fusion power DEMO
N. Asakura, K. Hoshino, S. Suzuki, S. Tokunaga, Y. Someya, H. Utoh, H. Kudo, Y. Sakamoto, R. Hiwatari, K. Tobita, K. Shimizu, K. Ezato, Y. Seki, N. Ohno, Y. Ueda and Joint Special Team for DEMO Design
Nucl.Fusion,Volume 57,126050

Progress in the U.S./Japan PHENIX Project for the Technological Assessment of Plasma Facing Components for DEMO Reactors
Yutai Katoh, Daniel Clark, Yoshio Ueda, Yuji Hatano, Minami Yoda, Adrian S. Sabau, Takehiko Yokomine, Lauren M. Garrison, J. Wilna Geringer, Akira Hasegawa, Tatsuya Hinoki, Masashi Shimada, Dean Buchenauer, Yasuhisa Oya & Takeo Muroga
Fusion Science and Technology,Volume 72,Issue 3

Overview of wall probes for erosion and deposition studies in the TEXTOR tokamak
M.Rubel, S.Brezinsek, J.W.Coenen, A.Huber, A.Kirschner, A.Kreter, P.Petersson, V.Philipps, A.Pospieszczyk, B.Schweer, G.Sergienko, T.Tanabe, Y.Ueda, P.Wienhold
Matter and Radiation at Extremes,Volume 2,Issue 3

Recent progress of divertor simulation research using the GAMMA 10/PDX tandem mirror
Y.Nakashima, K.Ichimura, M.S.Islam , M.Sakamoto, N.Ezumi, M.Hirata, M.Ichimura, R.Ikezoe, T.Imai, T.Kariya, I.Katanuma, J.Kohagura, R.Minami, T.Numakura, M.Yoshikawa, T.Iijima, M.M.Islam, K.Nojiri, K.Shimizu, A.Terakado, S.Togo, N.Asakura, M.Fukumoto, A.Hatayama, Y.Hirooka, S.Kado, H.Kubo, S.Masuzaki, H.Matsuura, T.Nakano, S.Nagata, N.Nishino, N.Ohno, A.Sagara4, K.Sawada, M.Shoji, A.Tonegawa and Y.Ueda
Nuclear Fusion, Volume 57,Issue 11,Article number 116033

Degradation of tungsten monoblock divertor under cyclic high heat flux loading
Shuhei Nogami, Michitoshi Toyota,Wenhai Guan, Akira Hasegawa, Yoshio Ueda
Fusion Engineering and Design, Volume 120,Pages 49-60

Baseline high heat flux and plasma facing materials for fusion
Y. Ueda, K. Schmid, M. Balden, J.W. Coenen, Th. Loewenhoff, A. Ito, A. Hasegawa, C. Hardie, M. Porton and M. Gilbert
Nuclear Fusion, Volume 57,Issue 9,Article number 092006

The role of the graphite divertor tiles in helium retention on the LHD wall
M.Oya, G.Motojima, M.Tokitani, H.Tanaka, S.Masuzaki, Y.Ueda
Nuclear Materials and Energy

Optical damage assessment and recovery investigation of hydrogen-ion and deuterium-ion plasma-irradiated bulk ZnO single crystals
Empizo, M.J.F., Yamanoi, K., Mori, K., Iwano, K., Iwasa, Y., Minami, Y., Arita, R., Fukuda, K., Takano, K., Shimizu, T., Nakajima, M., Yoshimura, M., Sarukura, N., Norimatsu, T., Hangyo, M., Azechi, H., Fukuda, T., Singidas, B.G., Sarmago, R.V., Oya, M., Ueda, Y.
Journal of Applied Physics, Volume 121,Issue 17,Article number 175102

Comparison between helium plasma induced surface structures in group 5 (Nb, Ta) and group 6 elements (Mo, W)
Omori, K., Ito, A.M., Shiga, K., Yamashita, N., Ibano, K., Lee, H.T., Ueda, Y.
Journal of Applied Physics, Volume 121,Issue 15,Article number 155301

2016年

Optical transmittance investigation of 1-keV ion-irradiated sapphire crystals as potential VUV to NIR window materials of fusion reactors
Iwano,K., Yamanoi,K., Iwasa,Y., Mori,K., Minami,Y., Arita,R., Yamanaka,T., Fukuda,K., Empizo,M.J.F., Takano,K., Shimizu,T., Nakajima,M., Yoshimura,M., Sarukura,N., Norimatsu,T., Hangyo,M., Azechi,H., Singidas,B.G., Sarmago,R.V., Oya,M., Ueda,Y.
AIP Advances

ZnO crystal as a potential damage-recoverable window material for fusion reactors
Yamanoi,K., Empizo,M.J.F., Mori,K., Iwano,K., Minami,Y., Arita,R., Iwasa,Y., Fukuda,K., Kato,K., Takano,K., Shimizu,T., Nakajima,M., Yoshimura,M., Sarukura,N., Norimatsu,T., Hangyo,M., Azechi,H., Fukuda,T., Singidas,B.G., Sarmago,R.V., Oya,M., Ueda,Y.
Optical Materials,Volume62,Pages646-650

Simulations of Tungsten Re-deposition Using a Particle-In-Cell Code with Non-uniform Super Particle Sizes
K.Ibano,S.Togo,T.L.Lang,Y.Ogawa,H.T.Lee,Y.Ueda,T.Takizuka
Contrib.Plasma Phys.56,No.6-8,705-710(2016)

Progress of long pulse discharges by ECH in LHD
Y. Yoshimura, H. Kasahara, M. Tokitani, R. Sakamoto, Y. Ueda,S. Ito, K. Okada, S. Kubo,T.Shimozuma,H.Igami, H. Takahashi,T.I. Tsujimura, R. Makino, S. Kobayashi, Y. Mizuno, T. Akiyama,N. Ashikawa, S. Masuzaki, G. Motojima, M. Shoji, C. Suzuki, H. Tanaka,K. Tanaka, T. Tokuzawa, H. Tsuchiya, I. Yamada, Y. Goto, H. Yamada,T. Mutoh, A. Komori, Y. Takeiri and the LHD Experiment Group
Nucl. Fusion 56 (2016) 046005 (7pp)

Reflection properties of hydrogen ions at helium irradiated tungsten surfaces
K Doi, Y Tawada, H T Lee, S Kato, N Tanaka, M Sasao, M Kisaki,M Nishiura, Y Matsumoto, T Kenmotsu, M Wada, Y Ueda and H Yamaoka
Phys. Scr. T167 (2016) 014044 (5pp)

Influence of helium on deuterium retention in reduced activation ferritic martensitic steel(F82H) under simultaneous deuterium and helium irradiation
K Yakushiji, H T Lee, M Oya, Y Hamaji, K Ibano and Y Ueda
Phys. Scr. T167 (2016) 014067 (4pp)

2015年

Overview of transport and MHD stability study: focusing on the impact of magnetic field topology in the Large Helical Device
K. Ida, K. Nagaoka, S. Inagaki, H. Kasahara, T. Evans, M. Yoshinuma, K. Kamiya, S. Ohdach, M. Osakabe, M. Kobayashi,Y.Ueda
(2015) Nuclear Fusion , 55(10),104018

Editorial
Ueda, Y., Asakura, N., Hoshino, K., Ito, A., Kajita, S., Kobayashi, M., Lee, H.T., Nakano, T., Tokitani, M.
(2015) Journal of Nuclear Materials, Volume 463, 22 July 2015, Article number 49089, Page 1

Perspective of negative triangularity tokamak as fusion energy system
Kikuchi, M., Medvedev, S., Takizuka, T., Fasoli, A., Wu, Y., Diamond, P., Duan, X., Kishimoto, Y., Hanada, K., Villard, L., Sauter, O., Coda, S., Duval, B., Reimerdes, H., Brunner, S., Merlo, G., Jiang, J., Wang, M., Ni, M., Chen, D., Du, H., Duan, W., Hou, Y., Ivanov, A., Martynov, A., Poshekhonov, Y., Ueda, Y., Yan, L., Song, X., Zheng, G., Liu, J., Nagasaki, K., Imadera, K., Mishra, K., Fujisawa, A., Nakamura, K., Zushi, H., Pueschel, Mj., Xu, X., Zhu, P., Told, D., Li, G.Q., Furukawa, M., Ozeki, T., Shimizu, K., Kawashima, K., Urano, H., Honda, M., Ando, T., Kuriyama, M.
42nd European Physical Society Conference on Plasma Physics , EPS2015

Systematic investigation of the formation behavior of helium bubbles in tungsten
Miyamoto, M., Mikami, S., Nagashima, H., Iijima, N., Nishijima, D., Doerner, R.P., Yoshida, N., Watanabe, H., Ueda, Y., Sagara, A.
(2015) Journal of Nuclear Materials, 463, art. no. 48703, pp. 333-336.

Gaseous tritium uptake by C deposition layer on tungsten
Hamaji, Y., Lee, H.T., Torikai, Y., Sugiyama, K., Ueda, Y.
(2015) Journal of Nuclear Materials, 463, art. no. 48646, pp. 1017-1020.

Surface modifications on toughened, fine-grained, recrystallized tungsten with repetitive ELM-like pulsed plasma irradiation
Kikuchi, Y., Sakuma, I., Kitagawa, Y., Asai, Y., Onishi, K., Fukumoto, N., Nagata, M., Ueda, Y., Kurishita, H.
(2015) Journal of Nuclear Materials, 463, art. no. 48701, pp. 206-209.

Deuterium retention in tungsten exposed to mixed D + N plasma at divertor relevant fluxes in Magnum-PSI
Lee, H.T., De Temmerman, G., Gao, L., Schwarz-Selinger, T., Meisl, G., Höschen, T., Ueda, Y.
(2015) Journal of Nuclear Materials, 463, art. no. 48637, pp. 974-978.

Progress of divertor simulation research toward the realization of detached plasma using a large tandem mirror device
Nakashima, Y., Takeda, H., Ichimura, K., Hosoi, K., Oki, K., Sakamoto, M., Hirata, M., Ichimura, M., Ikezoe, R., Imai, T., Iwamoto, M., Hosoda, Y., Katanuma, I., Kariya, T., Kigure, S., Kohagura, J., Minami, R., Numakura, T., Takahashi, S., Yoshikawa, M., Asakura, N., Fukumoto, M., Hatayama, A., Hirooka, Y., Kado, S., Kubo, H., Masuzaki, S., Matsuura, H., Nagata, S., Nishino, N., Ohno, N., Sagara, A., Shikama, T., Shoji, M., Tonegawa, A., Ueda, Y.
(2015) Journal of Nuclear Materials, 463, art. no. 48794, pp. 537-540.

Effect of temperature on microstructures and retention properties in tungsten exposed to D + He + Be mixture plasmas in PISCES
Iijima, N., Miyamoto, M., Nishijima, D., Baldwin, M.J., Doerner, R.P., Ueda, Y., Sagara, A., Höschen, T.
(2015) Journal of Nuclear Materials, 463, art. no. 48706, pp. 979-982.

Surface morphology changes and deuterium retention in Toughened, Fine-grained Recrystallized Tungsten under high-flux irradiation conditions
Oya, M., Lee, H.T., Ueda, Y., Kurishita, H., Oyaidzu, M., Hayashi, T., Yoshida, N., Morgan, T.W., De Temmerman, G.
(2015) Journal of Nuclear Materials, 463, art. no. 48720, pp. 1037-1040.

The influence of neon or argon impurities on deuterium permeation in tungsten
Ishida, M., Lee, H.T., Ueda, Y.
(2015) Journal of Nuclear Materials, 463, art. no. 48719, pp. 1062-1065.

Plasma wall interaction in long-pulse helium discharge in LHD – Microscopic modification of the wall surface and its impact on particle balance and impurity generation
Tokitani, M., Kasahara, H., Masuzaki, S., Motojima, G., Shoji, M., Ueda, Y., Yoshida, N., Yoshimura, Y., Nagasaki, K., Ashikawa, N., Mutoh, T., Yamada, H., Nagata, S.
(2015) Journal of Nuclear Materials, 463, art. no. 48793, pp. 91-98.

Deuterium retention in tungsten coating layers irradiated with deuterium and carbon ions
Fukumoto, M., Nakano, T., Ueda, Y., Itami, K., Kubo, H.
(2015) Journal of Nuclear Materials, 462, pp. 354-359.

Overview of fusion engineering in Japan
Hashizume, H., Nishitani, T., Konishi, S., Ueda, Y., Fukada, S., Sagara, A.
(2015) Fusion Science and Technology, 68 (2), pp. 201-210.

Effect of surface damage on thermal response of tungsten monoblocks
Tanaka, Y., Lee, H.T., Ueda, Y., Nagata, M., Kikuchi, Y., Suzuki, S., Seki, Y.
(2015) Fusion Science and Technology, 68 (2), pp. 433-437.

Long-pulse plasma discharges by upgraded ECH system in the LHD
Yoshimura, Y., Kasahara, H., Nagasaki, K., Tokitani, M., Ashikawa, N., Ueda, Y., Ito, S., Kubo, S., Shimozuma, T., Igami, H., Takahashi, H., Nishiura, M., Kobayashi, S., Mizuno, Y., Okada, K., Ogasawara, S., Makino, R., Yamada, I., Tokuzawa, T., Tanaka, K., Mutoh, T., Yamada, H.
(2015) EPJ Web of Conferences, 87, art. no. 02020, .

Tritium trapping on the plasma irradiated tungsten surface
Torikai, Y., Alimov, V.Kh., Isobe, K., Oyaidzu, M., Yamanishi, T., Penzhorn, R.-D., Ueda, Y., Kurishita, H., Philipps, V., Kreter, A., Zlobinski, M.
(2015) Fusion Science and Technology, 67 (3), pp. 619-622.

Effects of impurity transport and melt layer motion to the tungsten wall erosion during anomaly events
Ibano, K., Tsutsui, T., Lang, T.L., Togo, S., Ogawa, Y.
(2015) Journal of Nuclear Materials, 463, art. no. 48495, pp. 185-188.

Flow damping due to stochastization of the magnetic field
Ida, K., Email Author , Yoshinuma, M., Tsuchiya, H., Kobayashi, T., Suzuki, C., Yokoyama, M., Shimizu, A., Nagaoka, K., Inagaki, S., Itoh, K., Akiyama, T., Emoto, M., Evans, T., Dinklage, A., Du, X., Fujii, K., Goto, M., Goto, T., Hasuo, M., Hidalgo, C., Ichiguchi, K., Ishizawa, A., Jakubowski, M., Kamiya, K., Kasahara, H., Kawamura, G., Kato, D., Kobayashi, M., Morita, S., Mukai, K., Murakami, I., Murakami, S., Narushima, Y., Nunami, M., Ohdach, S., Ohno, N., Osakabe, M., Pablant, N., Sakakibara, S., Seki, T., Shimozuma, T., Shoji, M., Sudo, S., Tanaka, K., Tokuzawa, T., Todo, Y., Wang, H., Yamada, H., Takeiri, Y., Mutoh, T., Imagawa, S., Mito, T., Nagayama, Y., Watanabe, K.Y., Ashikawa, N., Chikaraishi, H., Ejiri, A., Furukawa, M., Fujita, T., Hamaguchi, S., Igami, H., Isobe, M., Masuzaki, S., Morisaki, T., Motojima, G., Nagasaki, K., Nakano, H., Oya, Y., Suzuki, Y., Sakamoto, R., Sakamoto, M., Sanpei, A., Takahashi, H., Tokitani, M., Ueda, Y.,
(2015) Nature Communications , Volume 6, 8 January 2015, Article number 5816

2014年

ダイバータにおける熱流制御とプラズマ材料相互作用
菊池祐介,澤田圭司,高村秀一,上田良夫,永田正義
J.Plasma Fusion Res. Vol.90,No.8(2014)480-488

直線型プラズマ生成装置を用いたプラズマ・壁相互作用研究
波多野雄治,宮本光貴,島田雅,上田良夫,時谷政行
J.Plasma Fusion Res. Vol.90,No.8(2014)489-495

Tritium trapping behavior in tungsten pre-irradiated with D, He, Ar and N plasmas
Y Hamaji, Y Torikai, H T Lee, Y Otsuka and Y Ueda
Phys. Scr. T159 (2014) 014051 (4pp)

Current Activities in the Interactive Joint Research at Tohoku University – Advanced Evaluation of Radiation Effects on Fusion Materials –
Hiroaki KURISHITA, Masahiko HATAKEYAMA, Minoru NARUI, Satoru MATSUO, Tatsuo SHIKAMA, Kohei TADA, Noriyasu OHNO, Takao TAKEUCHI, Yuji HATANO, Masaki NISHIURA, Yousuke NAKASHIMA, Hideo WATANABE, Kazutoshi TOKUNAGA, Tomoaki HINO, Yoshio UEDA, Takeo MUROGA, Akio SAGARA and Osamu KANEKO
Plasma Fusion Res. 9, 3405136 (2014)

Current status of nanostructured tungsten-based materials development
H Kurishita, S Matsuo, H Arakawa, T Sakamoto, S Kobayashi, K Nakai, H Okano, H Watanabe, N Yoshida, Y Torikai, Y Hatano, T Takida, M Kato, A Ikegaya, Y Ueda, M Hatakeyama and T Shikama
Phys. Scr. T159 (2014) 014032 (7pp)

The influence of nitrogen on deuterium permeation through tungsten
H T Lee, M Ishida, Y Ohtsuka and Y Ueda
Phys. Scr. T159 (2014) 014021 (5pp)

Critical concentration for hydrogen bubble formation in metals
Lu Sun, Shuo Jin, Hong-Bo Zhou, Ying Zhang, Wenqing Zhang, Y Ueda, H T Lee and Guang-Hong Lu
J. Phys.: Condens. Matter 26 (2014) 395402 (9pp)

Deuterium retention in various toughened, fine-grained recrystallized tungsten materials under different irradiation conditions
M Oya, H T Lee, Y Ohtsuka, Y Ueda, H Kurishita, M Oyaidzu and T Yamanishi
Phys. Scr. T159 (2014) 014048 (4pp)

HIGH-HEAT-FLUX TESTING OF IRRADIATED TUNGSTEN-BASED MATERIALS FOR FUSION APPLICATIONS USING INFRARED PLASMA ARC LAMPS
ADRIAN S. SABAU, EVAN K. OHRINER, JIM KIGGANS, CHARLES R. SCHAICH, YOSHIO UEDA, DAVID C. HARPER, YUTAI KATOH, and LANCE L. SNEAD
FUSION SCIENCE AND TECHNOLOGY VOL. 66 NOV. 2014

Surface erosion and modification of toughened, fine-grained, recrystallized tungsten exposed to TEXTOR edge plasma
Y Ueda, M Oya, Y Hamaji, H T Lee, H Kurishita, Y Torikai, N Yoshida, A Kreter, J W Coenen, A Litnovsky and V Philipps
Phys. Scr. T159 (2014) 014038 (4pp)

D-He-Be混合プラズマ環境下でのタングステンの微細組織と重水素保持特性
宮本光貴,西島大輔,BALDWIN Matthew j.,DOERNER Russell P.,上田良夫,栗下裕明,吉田直亮,相良明男
J.Plasma Fusion Res.Vol.89,No.6(2013)335-340

Research status and issues of tungsten plasma facing materials for ITER and beyond
Y. Ueda, J.W. Coenen, G. De Temmerman, R.P. Doerner, J. Linke,V. Philipps, E. Tsitrone
Fusion Engineering and Design, Volume 89, Issues 7–8, October 2014, Pages 901–906

Development of steady-state operation using ICH in the LHD
H. Kasahara, T. Seki, K. Saito, R. Seki, Y. Yoshimura, S. Kubo, T. Shimozuma, H. Igami, H. Takahashi, K. Nagasaki, Y. Ueda, M. Tokitani, N. Ashikawa, M. Shoji, T. Wakatsuki, S. Kamio, H. Tsuchiya, H. Tanaka, S. Yoshimura, N. Tamura, I. Yamada, C. Suzuki, T. Mutoh and LHD experimental group
AIP Conference Proceedings, 1580, 57 (2014)

Development of steady-state operation using ion cyclotron heating in the Large Helical Device
H. Kasahara, T. Seki, K. Saito, R. Seki, R. Kumazawa, Y. Yoshimura, S. Kubo, T. Shimozuma, H. Igami, H.Takahashi, K. Nagasaki, Y. Ueda, M. Tokitani, N. Ashikawa, M. Shoji, T. Wakatsuki, S. Kamio, H. Tsuchiya, S.Yoshimura, N. Tamura, C. Suzuki, H. Yamada, T. Mutoh, and LHD Experiment Group
Physics of Plasmas,Volume21, Issue6, 061505 (2014)

2013年

Microstructures and deuterium-retention behavior of tungsten exposed to D+(He and/or Be) mixture plasmas
Mitsutaka Miyamoto,Daisuke Nishijima,Matthew J. Baldwin,Russell P. Doerner,Yoshio Ueda,Akio Sagara and Hiroaki Kurishita
Materials Transactions,Volume 54, Issue 4, 2013, Pages 420-424

Development of nanostructured tungsten based materials resistant to recrystallization and/or radiation induced embrittlement
H. Kurishita,H. Arakawa,S. Matsuo,T. Sakamoto,S. Kobayashi,K. Nakai,G. Pintsuk,J. Linke,S. Tsurekawa,V. Yardley,K. Tokunaga,T. Takida,M. Katoh,A. Ikegaya,Y. Ueda,M. Kawai and N. Yoshida
Materials Transactions,Volume 54, Issue 4,Pages 456-465

Response of fuzzy tungsten surfaces to pulsed plasma bombardment
D. Nishijima,R.P. Doerner,D. Iwamoto,Y. Kikuchi,M. Miyamoto,M. Nagata,I. Sakuma,K. Shoda,Y. Ueda
Journal of Nuclear Materials,Volume 434, Issues 1–3,Pages 230–234

Impact of arcing on carbon and tungsten: From the observations in JT-60U, LHD and NAGDIS-II
Shin Kajita, Masakatsu Fukumoto, Masayuki Tokitani, Tomohide Nakano, Yasuyuki Noiri, Noriyasu Ohno, Suguru Masuzaki, Shuichi Takamura, Naoaki Yoshida and Yoshio Ueda
Nuclear Fusion,Volume 53, Issue 5, Article number 053013

Characteristics of tungsten and carbon dusts in JT-60U and evaluation of hydrogen isotope retention
Naoko Ashikawa,Nobuyuki Asakura,Masakatsu Fukumoto,Takao Hayashi,Yoshio Ueda,Takeo Muroga
Journal of Nuclear Materials,Volume 438, Supplement,Pages S664–S667

Tritium loading study of tungsten pre-exposed to TEXTOR plasmas
Y. Torikai,A. Taguchi,M. Saito,R.-D. Penzhorn,Y. Ueda,H. Kurishita,K. Sugiyama,V. Philipps,A. Kreter,M. Zlobinski,TEXTOR team,Journal of Nuclear Materials
Volume 438, Supplement,Pages S1121–S1124

Deuterium retention in VPS-W coated vanadium alloy (V–4Cr–4Ti)
Yoshio Uedaa,Kazuhiro Uekita,Makoto Oya,Yusuke Ohtsuka,Takuya Nagasaka,Ryuta Kasada,Akihiko Kimura,Tomonori Tokunaga,Naoaki Yoshida
Journal of Nuclear Materials,Volume 438, Supplement,Pages S1125–S1128

Surface cracking and melting of different tungsten grades under transient heat and particle loads in a magnetized coaxial plasma gun
Y. Kikuchi,I. Sakuma,D. Iwamoto,Y. Kitagawa,N. Fukumoto,M. Nagata,Y. Ueda
Volume 438, Supplement,Pages S715–S718

Recent results of divertor simulation research using an end-cell of a large tandem mirror device
Y. Nakashima,H. Takeda,K. Ichimura,K. Hosoi,M. Sakamoto,M. Hirata,M. Ichimura,R. Ikezoe,T. Imai,T. Ishii,T. Kariya,I. Katanuma,J. Kohagura,R. Minami,T. Numakura,H. Ueda,M. Yoshikawa,N. Asakura,T. Furuta,A. Hatayama,Y. Hirooka,S. Kado, S. Masuzaki,H. Matsuura,S. Nagata,N. Nishino,N. Ohno,A. Sagara,T. Shikama,M. Shoji,M. Toma,A. Tonegawa,Y. Ueda
Journal of Nuclear Materials,Volume 438, Supplement,Pages S738–S741

Effect of tungsten and carbon surface mixed layer on deuterium permeation in tungsten
H.Y. Peng,H.T. Lee,Y. Ohtsuka,Y. Ueda
Journal of Nuclear Materials,Volume 438, Supplement,Pages S1063–S1066

Deuterium retention in Toughened, Fine-Grained Recrystallized Tungsten
M. Oya,K. Uekita,H.T. Lee,Y. Ohtsuka,Y. Ueda,H. Kurishita,A. Kreter,J.W. Coenen,V. Philipps,S. Brezinsek,A. Litnovsky, K. Sugiyama,Y. Torikai
Journal of Nuclear Materials,Volume 438, Supplement,Pages S1052–S1054

Surface release parameter of Deuterium from tungsten
H.T. Lee,Y. Ohtsuka,Y. Ueda
Journal of Nuclear Materials,Volume 438, Supplement,Pages S1023–S1026

Effects of glow discharge cleanings on hydrogen isotope removal for plasma facing materials
Y. Yamauchi,A. Matsumoto,Y. Kosaka,Y. Kimura,K. Takeda,T. Hino,Y. Nobuta,K. Nishimura,Y. Ueda
Journal of Nuclear Materials,Volume 438, Supplement,Pages S1146–S1149

Influence of Be seeding on microstructures of tungsten exposed to D–He mixture plasmas in PISCES and its impacts on retention properties
Mitsutaka Miyamoto,Daisuke Nishijima,Matthew Baldwin,Russ Doerner,Yoshio Ueda,Akio Sagara
Journal of Nuclear Materials,Volume 438, Supplement,Pages S216–S219

Properties of carbon deposits on tungsten nano-structure
Y. Hamaji,K. Miyata,T. Wada,Y. Ohtsuka,Y. Ueda
Journal of Nuclear Materials,Volume 438, Supplement,Pages S949–S952

Properties of deposited layer formed by interaction with Be seeded D-He mixture plasma and tungsten
Tokunaga, K., Baldwin, M.J., Nishijima, D., Doerner, R.P., Nagata, S., Tsuchiya, B., Kurishita, H., Fujiwara, T., Araki, K., Miyamoto, Y., Ohno, N., Ueda, Y.
Journal of Nuclear Materials,Volume 442, Issue 1-3 SUPPL.1, 2013, Pages s313-s319

Helium effects on tungsten surface morphology and deuterium retention
Y. Ueda,H.Y. Peng,H.T. Lee,N. Ohno,S. Kajita,N. Yoshida,R. Doerner,G. De Temmerman,V. Alimov,G. Wright
Journal of Nuclear Materials,Volume 442, Issues 1–3, Supplement 1,Pages S267–S272

Structure of C deposition layers under various deposition conditions
Y. Hamaji, T. Wada, H. T. Lee, Y. Ohtsuka, Y. Ueda, A. Kreter, V. Philipps, Y. Yamauchi, N. Ashikawa, LHD Experimental Groupd
TRANSACTIONS OF FUSION SCIENCE AND TECHNOLOGY VOL. 63,371-373, MAY 2013

Extension of operation regimes and investigation of three-dimensional currentless plasmas in the Large Helical Device
O. Kaneko, H. Lee, Y. Ueda,他
Physica Scripta,T159 (2014) 014021 (5pp)

Incident Ion Energy and Temperature Dependence of Helium Bubble Formation and Its Impact on D-Retention Under Simultaneous He-D Irradiation of Tungsten
H. T. Lee, Y. Ohtsuka, Y. Ueda, K. Sugiyama, E. Markina, N. Yoshida
TRANSACTIONS OF FUSION SCIENCE AND TECHNOLOGY, VOL. 63(2013),233-236

2012年

Deuterium retention in graphite and its removal by inert gas glow discharge
Akira MATSUMOTO, Yuji YAMAUCHI, Tomoaki HINO, Kiyohiko NISHIMURA and Yoshio UEDA
Plasma and Fusion Research: Regular Articles , Volume 7, 2402090(2012)

Retention of fuel hydrogen retention of tungsten plasma facing wall in fusion reactor
Tomoaki Hino,Yuji Yamauchi,Kiyohiko Nishimura,Yoshio Ueda
Materials Science Forum,Volume721,2012,Pages211-215

プロジェクトレビュー核融合炉実現を目指したトリチウム研究の新展開 3.炉内トリチウム
上田良夫、大宅薫、芦川直子、伊藤篤史、小野忠良、加藤太治、川島寿人、河村学思、剣持貴弘、斎藤誠紀、清水勝宏、高木郁二、高山有道、滝塚知典、田中康規、田辺哲朗、藤間光徳、Tolstikhina Inga Yu.、冨田幸博、仲野友英、中村浩章、中村誠、畑山明聖、星野一生、本間裕貴、吉田雅史、和田元
J. Plasma Fusion Res. Vol.88, No.9 (2012) 484‐502

Fuel hydrogen retention of tungsten and the reduction by inert gas glow discharges
T. Hino, Y. Yamauchi, Y. Kimura, K. Nishimura, Y. Ueda
Fusion Engineering and Design, Volume 87, Issues 5–6, August 2012, Pages 876–879

Beryllium erosion induced by transient heat loads and subsequent reactions in a deuterium plasma
Shin Kajita, Daisuke Nishijima, Russ Doerner, Karl Umstadter, Jonathan Yu , Noriyasu Ohno ,Yoshio Ueda
Journal of Nuclear Materials 420 (2012) 252–257

MATERIAL AND POWER-HANDLING PROPERTIES OF TUNGSTEN PFCs AFTER STEADY-STATE MELTING AND ADDITIONAL TRANSIENT HIGH-HEAT-FLUX EXPOSURE
J. W. COENEN, B. BAZYLEV, S. BREZINSEK, V. PHILIPPS, T. HIRAI, A. KRETER, J. LINKE, G. PINTSUK, G. SERGIENKO, A. POSPIESZCZYK, T. TANABE, Y. UEDA,U. SAMM, and THE TEXTOR TEAM
Fusion Science and Technology, Volume 61, Number 2, February 2012, Pages 129-135

Temperature dependence for nitridation of aluminum films by sub-atmospheric pressure discharge
A. Saikubo, Y. Ohtsuka, Y. Ueda
Journal of Physics: Conference Series 379 (2012) 012032

Overview of the US–Japan collaborative investigation on hydrogen isotope retention in neutron-irradiated and ion-damaged tungsten
Masashi Shimada, Y. Hatano, Y. Oya, T. Oda, M. Hara, G. Cao, M. Kobayashi, M. Sokolov, H. Watanabe, B. Tyburska, Y. Ueda, P. Calderoni, K. Okuno
Fusion Engineering and Design 87 (2012) 1166– 1170

Tokamak plasma response to droplet spraying from melted plasma-facing components
M.Z. Tokar, J.W. Coenen, V. Philipps, Y. Ueda and the TEXTOR Team
Nucl. Fusion 52 (2012) 013013 (6pp)

Deuterium permeation in tungsten by mixed ion irradiation
Y. Ueda, H.T. Lee, H.Y. Peng, Y. Ohtsuka
Fusion Engineering and Design 87 (2012) 1356– 1362

Microstructures and Deuterium-Retention Behavior of Tungsten Exposed to D+(He and/or Be) Mixture Plasmas
Mitsutaka Miyamoto, Daisuke Nishijima, Matthew J. Baldwin, Russell P. Doerner,Yoshio Ueda, Akio Sagara, Hiroaki Kurishita
Materials Transactions, Vol. 54, No. 4 (2013) pp. 420 to 424

2011年

Recent progress of tungsten R&D for fusion application in Japan
Y Ueda, H T Lee, N Ohno, S Kajita, A Kimura, R Kasada, T Nagasaka, Y Hatano, A Hasegawa, H Kurishita and Y Oya
Phys. Scr. T145 (2011) 014029

Deuterium ion-driven permeation in tungsten with different microstructures
H T Lee, E Markina, Y Otsuka and Y Ueda
Phys. Scr. T145 (2011) 014045

Ion-driven permeation of deuterium in tungsten by deuterium and carbon-mixed ion irradiation
H Y Peng, H T Lee, Y Ohtsuka and Y Ueda
Phys. Scr. T145 (2011) 014046

Influences of edge localized mode-like pulsed plasma bombardment on deuterium retention in tungsten
D Nishijima, Y Kikuchi, M Nakatsuka, M J Baldwin, R P Doerner, M Nagata and Y Ueda
Phys. Scr. T145 (2011) 014053

Numerical simulations of tungsten melt layer erosion caused by J×B force at TEXTOR
B Bazylev, Yu Igitkhanov, J W Coenen, V Philipps and Y Ueda
Phys. Scr. T145 (2011) 014054

Analysis of structural changes and high-heat-flux tests on pre-damaged tungsten from tokamak melt experiments
J W Coenen, V Philipps, S Brezinsek, G Pintsuk, T Tanabe, Y Ueda, U Samm and the TEXTOR team
Phys. Scr. T145 (2011) 014066

Deuterium Retention in Damaged Tungsten
K. Tsukatani, Y. Ueda, K. Tanimoto, H. T. Lee, Y. Ohtsuka, M. Taniguchi, T. Inoue, K. Sakamotob, I. Takagi, and N. Yoshid
Fusion Science and Technology Volume 60, Number 4, November 2011, Pages 1543-1547

ITERに向けたタングステンPWI研究の進展と課題
時谷政行、上田良夫
J. Plasma Fusion Res. Vol.87, No.9 (2011) 591-599

Effects of repeated short heat pulses on tungsten
H. Kurehashi, Y. Ohtsuka, Y. Ueda, H. Kurishita
Journal of Nuclear Materials Volume 417, Issues 1-3, 1 October 2011, Pages 487-490

Nanoscale surface morphology of tungsten materials induced by Be-seeded D-He plasma exposure
K. Tokunaga, M.J. Baldwin, R.P. Doerner, D. Nishijima, H. Kurishita, T. Fujiwara, K. Araki, Y. Miyamoto, N. Ohno, Y. Ueda
Journal of Nuclear Materials, Volume 417, Issues 1-3, 1 October 2011, Pages 528-532

Ion-driven permeation of deuterium through tungsten under simultaneous helium and deuterium irradiation
H.T. Lee, H. Tanaka, Y. Ohtsuka, Y. Ueda
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S696-S700

Exposure of tungsten nano-structure to TEXTOR edge plasma
Y. Ueda, K. Miyata, Y. Ohtsuka, H.T. Lee, M. Fukumoto, S. Brezinsek, J.W. Coenen, A. Kreter, A. Litnovsky, V. Philipps, B. Schweer, G. Sergienko, T. Hirai, A. Taguchi, Y. Torikai, K. Sugiyama, T. Tanabe, S. Kajita, N. Ohno, The TEXTOR team, et al.
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S92-S95

Application of tritium imaging plate technique to examine tritium behaviors on the surface and in the bulk of plasma-exposed materials
T. Otsuka, M. Shimada, R. Kolasinski, P. Calderoni, J.P. Sharpe, Y. Ueda, Y. Hatano, T. Tanabe
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S696-S700

Effects of carbon impurity on deuterium retention in VPS-tungsten coatings exposed to JT-60U divertor plasmas
M. Fukumoto, T. Nakano, K. Itami, T. Wada, Y. Ueda, T. Tanabe
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S705-S708

Microscopic damage of tungsten exposed to deuterium–helium mixture plasma in PISCES and its impacts on retention property
M. Miyamoto, D. Nishijima, M.J. Baldwin, R.P. Doerner, Y. Ueda, K. Yasunaga, N. Yoshida, K. Ono
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S657-S660

Tungsten melt layer motion and splashing on castellated tungsten surfaces at the tokamak TEXTOR
J.W. Coenen, B. Bazylev, S. Brezinsek, V. Philipps, T. Hirai, A. Kreter, J. Linke, G. Sergienko, A. Pospieszczyk, T. Tanabe, Y. Ueda, U. Samm, The TEXTOR-Team
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S78-S82

Surface damage characteristics of CFC and tungsten with repetitive ELM-like pulsed plasma irradiation
Y. Kikuchi, D. Nishijima, M. Nakatsuka, K. Ando, T. Higashi, Y. Ueno, M. Ishihara, K. Shoda, M. Nagata, T. Kawai, Y. Ueda, N. Fukumoto, R.P. Doerner
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S55-S58

Divertor simulation experiment and its future research plan making use of a large tandem mirror device
Y. Nakashima, H. Takeda, K. Hosoi, R. Yonenaga, I. Katanuma, K. Ichimura, M. Ichimura, T. Imai, T. Ishii, T. Kariya, Y. Kiwamoto, R. Minami, Y. Miyata, H. Ozawa, H. Shidara, Y. Yamaguchi, M. Yoshikawa, N. Asakura, A. Hatayama, Y. Higashizono, et al.
Journal of Nuclear Materials, Volume 415, Issue 1, Supplement, 1 August 2011, Pages S996-S1000

Analysis of tungsten melt-layer motion and splashing under tokamak conditions at TEXTOR
J.W. Coenen, V. Philipps, S. Brezinsek, B. Bazylev, A. Kreter, T. Hirai, M. Laengner, T. Tanabe, Y. Ueda, U. Samm and the TEXTOR Team
Nucl. Fusion 51 (2011) 083008 (11pp)

Melt-layer ejection and material changes of three different tungsten materials under high heat-flux conditions in the tokamak edge plasma of TEXTOR
J.W. Coenen, V. Philipps, S. Brezinsek, G. Pintsuk, I. Uytdenhouwen, M. Wirtz, A. Kreter, K. Sugiyama, H. Kurishita, Y. Torikai, Y. Ueda, U. Samm and the TEXTOR-Team
Nucl. Fusion 51 (2011) 113020 (8pp)

MIDTERM SUMMARY OF JAPAN-US FUSION COOPERATION PROGRAM TITAN
T. Muroga, D.K. Sze, K. Okuno, T. Terai, A. Kimura, R.J. Kurtz, A. Sagara, R. Nygren, Y. Ueda, R.P. Doerner, J.P. Sharpe, T. Kunugi, N.B. Morley, Y. Hatano, M.A. Sokolov, T. Yamamoto, A. Hasegawa, Y. Katoh, N. Ohno, K. Tokunaga17, S. Konishi, S. Fukada, P. Calderoni, T. Yokomine, K. Messadek, Y. Oya, N. Hashimoto, T. Hinoki, H. Hashizume, T. Norimatsu, T. Shikama, R.E. Stoller, K.A. Tanaka, M.S. Tillack
Fusion Science and Technology Volume 60, Number 1, July 2011, Pages 321-328

Hydrogen isotope retention and desorption for tungsten during glow discharges
Y. Yamauchi, Y. Kimura, Y. Kosaka, Y. Nobuta, T. Hino, K. Nishimura and Y. Ueda
Fusion Science and Technology Volume 60, Number 4, November 2011, Pages 1475-1478

Effects of Steady-State Plasma Exposure on Tungsten Surface Cracking due to Elm-Like Pulsed Plasma Bombardment
D. Nishijima, Y. Kikuchi, M. Nakatsuka, M. J. Baldwin, R. P. Doerner, M. Nagata, Y. Ueda
Fusion Science and Technology Volume 60, Number 4, November 2011, Pages 1447-1450

Evaluation of Ultrasonic Wave Generation using Electromagnetic Acoustic Transducer with Current Driven Circuit
Yusuke Ohtsuka
IEEJ Trans. FM, Vol. 131, No. 11, pp.900-907 (2011) .

電流駆動方式を用いた電磁超音波探触子の小型高性能化
大塚裕介、上田良夫、西川雅弘
超音波TECHNO Vol.23, No.4 (2011) pp.52-56

2010年

Status of Plasma Facing Material Studies and Issues toward DEMO
Yoshio Ueda
Plasma and Fusion Research Volume 5, S1009 (2010)

Material mixing of tungsten with carbon and helium
Y. Ueda and H. T. Lee
AIP Conference Proceedings Volume 1237, Issue 1, pp. 92-105

2009年

Temperature dependence of carbon deposition on Tungsten
A. Yamawaki, M. Fukumoto, Y. Soga, Y. Ohtsuka, Y. Ueda, K. Ohya
FUSION SCIENCE AND TECHNOLOGY VOL. 56 AUG. 2009,1038-1042.

Simultaneous irradiation effects of hydrogen and helium ions on tungsten
Y. Ueda, M. Fukumoto, J. Yoshida, Y. Ohtsuka, R. Akiyoshi, H. Iwakiri, N. Yoshida
Journal of Nuclear Materials 386–388 (2009) 725–728.

EFFECTS OF HELIUM IONS ON HYDROGEN ISOTOPE BEHAVIOR IN TUNGSTEN
Y. Ueda, H. Kashiwagi, M. Fukumoto, Y. Ohtsuka, N. Yoshida
FUSION SCIENCE AND TECHNOLOGY VOL. 56 JULY 2009 85-90.

Effects of tungsten surface conditions on carbon deposition
Y. Ueda, M. Fukumoto, A. Yamawaki, Y. Soga, Y. Ohtsuka, S. Brezinsek, T. Hirai, A. Kirschner,A. Kreter, A. Litnovsky, V. Philipps, A. Pospieszczyk, B. Schweer, G. Sergienko, T. Tanabe,K. Sugiyama, K. Ohya, N. Ohno, The TEXTOR team
Journal of Nuclear Materials 390–391 (2009) 44–48.

Localized tungsten deposition in divertor region in JT-60U
Y. Ueda, M. Fukumoto, J. Watanabe, Y. Ohtsuka, T. Arai, N. Asakura, Y. Nobuta, M. Sato, T. Nakano, J. Yagyu, K. Ochiai, K. Takakura, T. Tanabe and the JT-60 Team
Nucl. Fusion 49 (2009) 065027 (7pp).

Hydrogen behavior in damaged tungsten by high-energy ion irradiation
M. Fukumoto, H. Kashiwagi, Y. Ohtsuka, Y. Ueda, Y. Nobuta, J. Yagyu, T. Arai, M. Taniguchi, T. Inoue, K. Sakamoto
Journal of Nuclear Materials 386–388 (2009) 768–771.

Deuterium trapping in tungsten damaged by high-energy hydrogen ion irradiation
M. Fukumoto, H. Kashiwagi, Y. Ohtsuka, Y. Ueda, M. Taniguchi, T. Inoue, K. Sakamoto, J. Yagyu, T. Arai, I. Takagi, T. Kawamura
Journal of Nuclear Materials 390–391 (2009) 572–575.

Tungsten accumulation in H-mode plasmas of JT-60U
T. Nakano, N. Asakura, H. Kubo, J. Yanagibayashi and Y. Ueda
Nucl. Fusion 49 (2009) 115024 (10pp).

The effects of high fluence mixed-species (deuterium, helium, beryllium)plasma interactions with tungsten
M.J. Baldwin, R.P. Doerner, D. Nishijima, K. Tokunaga, Y. Ueda
Journal of Nuclear Materials 390–391 (2009) 886–890.

Comparison of 13C2H4 and 13CH4 injection through graphite and tungsten limiters in TEXTOR
S Brezinsek, A Kreter, R Ding, T Hirai, A Kirschner, V Philipps, A Pospieszczyk, U Samm, B Schweer, O Schmitz, K Sugiyama, T Tanabe and Y Ueda the TEXTOR team
Phys. Scr. T138 (2009) 014022 (8pp).

Observations of suppressed retention and blistering for tungsten exposed to deuterium–helium mixture plasmas
M. Miyamoto, D. Nishijima, Y. Ueda, R.P. Doerner, H. Kurishita, M.J. Baldwin, S. Morito, K. Ono and J. Hanna
Nucl. Fusion 49 (2009) 065035 (7pp).

THERMOPHYSICAL PROPERTIES AND MICROSTRUCTURE OF PLASMA-SPRAYED TUNGSTEN COATING ON LOW ACTIVATION MATERIALS
TAKUYA NAGASAKA, RYUTA KASADA, AKIHIKO KIMURA, YOSHIO UEDA AND TAKEO MUROGA
FUSION SCIENCE AND TECHNOLOGY VOL. 56 AUG. 2009.

2008年

Blister formation on tungsten damaged by high energy particle irradiation
M. Fukumoto, Y. Ohtsuka, Y. Ueda, M. Taniguchi, M. Kashiwagi, T. Inoue and K. Sakamoto
Journal of Nuclear Materials, Volume 375, Issue 2, , 15 April 2008, Pages 224-228.

Suppression of breaking torque produced by a passive magnetic bearing using eddy current
Takeshi Takanashi, Yusuke Ohtsuka, Yoshio Ueda and Masahiro Nishikawa
IEEJ Transactions on fundamentals and materials,Vol.128, No.8, 2008, pp. 379-385.

Effect of surface roughness and substrate material on carbon erosion and deposition in the TEXTOR tokamak
A Kreter, S Brezinsek, T Hirai, A Kirschner, K Krieger, M Mayer, V Philipps, A Pospieszczyk, U Samm, O Schmitz, B Schweer, G Sergienko, K Sugiyama, T Tanabe, Y Ueda, P Wienhold and theTEXTOR team
Plasma Phys. Control. Fusion 50 (2008) 095008 (10pp).

2007年

Surface studies of tungsten erosion and deposition in JT-60U
Y. Ueda, M. Fukumoto, M. Nishikawa, T. Tanabe, N. Miya, T. Arai, K. Masaki, Y. Ishimoto, K. Tsuzuki and N. Asakura
Journal of Nuclear Materials, Volumes 363-365, 15 June 2007, Pages 66-71.

Comparison of erosion processes of RAF and pure Fe by hydrogen and carbon mixed ion beam irradiation
Y. Ueda, M. Fukumoto, D. Sakizono, I. Sawamura and M. Nishikawa
Journal of Nuclear Materials 367–370 (2007) 386–391.

Status and Issues of Plasma Facing Materials for Fusion Reactors
Y. Ueda
 Proceedings of International Symposium on EcoTopia? Science200, ISETS07(2007)

Effects of repetitive ELM-like heat pulses on tungsten surface morphology
Y. Ueda, M. Toda, M. Nishikawa, K. Kondo, K.A. Tanaka
Fusion Engineering and Design 82 (2007) 1904–1910.

DEVELOPMENT OF TUNGSTEN MATERIALS FOR PLASMA FACING COMPONENTS IN JAPAN
Y. Ueda, N. Ohno, S. Kajita, H. Kurishita, H. Iwakiri, K. Tokunaga, N. Yoshida
FUSION SCIENCE AND TECHNOLOGY VOL. 52 OCT. 2007513-520.

電磁超音波探触子の開発
上田 良夫、大塚 裕介
生産と技術第59巻 第4号(2007)1-5.

Spectroscopic determination of the singly ionized helium density in low electron temperature plasmas mixed with helium in a linear divertor plasma simulator
D. Nishijima, R. P. Doerner, M. J. Baldwin, E. M. Hollmann, and R. P. Seraydarian, Y. Ueda
PHYSICS OF PLASMAS 14, 103509(2007).

Multi-path method by using shear horizontal wave for defect size detection
Yusuke Ohtsuka, Naoki Nakamura, Masahiro Nishikawa, Yoshio Ueda
Preglad Electrotechniczny,November,2007,pages 191-193.

New Design of Electromagnetic Acoustic Transducer for Precise Determination of Defect
Y. Ohtsuka, T. Yoshimura, Y. Ueda
Proceeding of 2007 IEEE international ultrasonics symposium.

Characteristics of restoring force and braking torque for passive magnetic bearing with auxiliary magnets
Takeshi TAKANASHI, Akimasa IDENO, Yusuke OHTSUKA, Yoshio UEDA and Masahiro NISHIKAWA
Turbomachinery, Vol.35, No.8,2007.

2006年

Investigation of carbon transport by 13CH4 injection through graphite and tungsten test limiters in TEXTOR
A Kreter, D Borodin, S Brezinsek, S Droste, T Hirai, A Kirschner, A Litnovsky, M Mayer, V Philipps, A Pospieszczyk, Y Sakawa, U Samm, O Schmitz, G Sergienko, T Tanabe, Y Ueda, P Wienhold and the TEXTOR team
Plasma Phys. Control. Fusion 48 (2006) 1401–1412.

Exposure of reduced activation ferritic steel F82H to TEXTOR plasma
T. Tsuzuki, T. Hirai, Y. Kusama, V. Philipps, A. Pospieszczyk. M. Sakamoto, Y. Sakawa, G. Sergienko, B. Schweer, T. Tanabe, Y. Ueda
Fusion Engineering and Design 81 (2006) 925–929.

レーザー核融合炉チェンバー液体第一壁の核融合エネルギーによるアブレーション量と温度変化の評価
山本敬治、古河裕之、城崎知至、神前康次、廣岡慶彦、上田良夫、西川雅弘、田中和夫
J. Plasma Fusion Res. Vol.82, No.7 (2006)441‐447.

レーザー核融合炉固体壁の熱的応答に関する研究
山本敬治、古川裕之、城崎知至、神前康次、廣岡慶彦、上田良夫、西川雅弘、田中和夫
J. Plasma Fusion Res. Vol.82, No.12 (2006)838‐842.

Influence of Carbon Impurity on Net Erosion of Reduced-Activation Ferritic/Martensitic Steel and Tungsten Materials Exposed to Hydrogen and Carbon Mixed Ion Beam Relevant to Fusion Plasma Boundary
R. Kawakami, T. Shimada, Y. Ueda, M. Nishikawa
Japanese Journal of Applied Physics Vol. 45, No. 1A, 2006, pp. 221–227.

Critical heat flux loading experiments on CVD-W coating in the TEXTOR tokamak
T. Hirai, A. Kreter, J. Linke, J. Malzbender, T. Ohgo, V. Philipps, G. Pintsuk, A. Pospieszczyk, Y. Sakawa, G. Sergienko, T. Tanabe, Y. Ueda, M. Wada
Fusion Engineering and Design, Volume 81, Issues 1-7,Part A, February 2006, Pages 175-180.

Carbon impurity behavior on plasma facing surface of tungsten
Y. Ueda, M. Fukumoto, I. Sawamura, D. Sakizono, T. Shimada, M. Nishikawa
Fusion Engineering and Design, Volume 81, Issues 1-7, Part A, February 2006, Pages 233-239.

Analysis of Magnetic Bearing Using Inductive Levitation by Relative Motion between Magnet and Conductor
Takanashi, Takeshi; Matsuya, Yuji; Ohtsuka, Yusuke; Nishikawa, Masahiro
IEEJ Trans. IA, vol.126, No.12, 2006, pp.1699-1705

Fundamental experiment for inspection of cooling pipes in operation by using ultrasonic technique
Y. Ohtsuka, M. Higashi and M. Nishikawa
Fusion Engineering and Design, No.81, 2006, pp.1583-1587.

2005年

Hydrogen blister formation and cracking behavior for various tungsten materials
Y. Ueda, T. Funabiki, T. Shimada, K. Fukumoto, H. Kurishita, M. Nishikawa
Journal of Nuclear Materials 337–339 (2005) 1010–1014.

よくわかる核融合炉のしくみ(第5章)
鈴木 哲、上田良夫
日本原子力学会誌, Vol. 47, No. 4(2005)266-271.

Modeling of magnetic field in remote field and mechanism of detecting a defect
M.Yasunishi, Y. Ohtsuka, M. Nishikawa
JSAEM,Vol.13, No.2, 2005, p163.

Testing of circumferential discontinuities using remote magnetic field analysis
Michio Yasunishi, Yusuke Ohtsuka, Masahiro Nishikawa
Material Evaluation, Vol.63/No.3, 2005, pp.335-338.

2004年

Progress in physics and technology developments for the modification of JT-60
H. Tamai, M. Matsukawa, G. Kurita, N. Hayashi, K. Urata, Y. M. Miura, K. Kizu, K. Tsuchiya, A. Morioka, Y. Kudo, S. Sakurai, K. Masaki, T. Suzuki, M. Takechi, Y. Kamada, A. Sakasai, S. Ishida, K. Abe, A. Ando, T. Cho, T. Fujii, T. Fujita, S. Goto, K. Hananda, A. Hatayama, T. Hino, H. Horiike, N. Hosogane, M. Ichimura, S. Tsuji-Iio, S. Itoh, M. Katsurai, M. Kikuchi, A. Kohyama, H. Kubo, M. Kuriyama, M. Matsuoka, Y. Miura, N. Miya, T. Mizuuchi, K. Nagasaki, H. Ninomiya, N. Nishino, Y. Ogawa, K. Okano, T. Ozeki, M. Saigusa, M. Sakamoto, M. Satoh, M. Shimada, R. Shimada, M. Shimizu, T. Takagi, Y. Takase, T. Tanabe, K. Toi, Y. Ueda, Y. Uesugi, K. Ushigusa, Y. Yagi,T. Yamamoto, K. Yatsu, and K. Yoshikawa
Plasma Science & Technology, vo1.6, No.1, Feb. 2004

Impacts of carbon impurities in hydrogen plasmas on tungsten blistering
Y. Ueda, T. Shimada, M. Nishikawa
Nucl. Fusion 44 (2004) 62–67.

よくわかる核融合炉のしくみ(第1章)
上田良夫、井上多加志、栗原研一
日本原子力学会誌, Vol. 46, No. 12(2004) 845-852.

トカマク実験における最近のプラズマ-材料相互作用研究
上田良夫
J.Plasma Fusion Res.Vol.80,No.3(2004)217-221.

Simulation study of dynamical material mixing on tungsten surfaces at elevated temperatures due to hydrogen and carbon mixed ion beam irradiation
R. Kawakami, T. Shimada, Y. Ueda, M. Nishikawa
Journal of Nuclear Materials, Volumes 329-333, Part 1, August 2004, Pages 737-741.

Carbon behavior on tungsten surface after carbon and hydrogen mixed beam irradiation
T. Shimada, T. Funabiki, R. Kawakami, Y. Ueda, M. Nishikawa
Journal of Nuclear Materials, Volumes 329-333, Part 1, August 2004, Pages 747-751.

Effects of carbon impurity in fusion plasmas on erosion of RAF first wall
Y. Ueda, T. Funabiki, T. Shimada, R. Kawakami, M. Nishikawa
Journal of Nuclear Materials, Volumes 329-333, Part 1,August 2004, Pages 771-774.

Effect of tungsten microstructure on blister formation by hydrogen and carbon mixed ion beam irradiation
T. Funabiki, T. Shimada, Y. Ueda, M. Nishikawa
Journal of Nuclear Materials, Volumes 329-333, Part 1,August 2004, Pages 780-784.

2003年

Dynamic Behavior of Tungsten Surfaces due to Simultaneous Impact of Hydrogen and Carbon Ion Beam
Retsuo KAWAKAMI, Tomohisa SHIMADA, Yoshio UEDA and Masahiro NISHIKAWA
Japanese Journal of Applied Physics,Volume 42,Part 1,Number 12

Objectives and design of the JT-60 superconducting tokamak
S. Ishida, K. Abe, A. Ando, T. Cho, T. Fujii, T. Fujita, S. Goto, K. Hanada, A. Hatayama, T. Hino, H. Horiike, N. Hosogane, M. Ichimura, S. Tsuji-Iio, S. Itoh, Y. Kamada, M. Katsurai, M. Kikuchi, A. Kitsunezaki, A. Kohyama, H. Kubo, M. Kuriyama, M. Matsukawa, M. Matsuoka, Y. Miura, Y.M. Miura, N. Miya, T. Mizuuchi, Y. Murakami, K. Nagasaki, H. Ninomiya, N. Nishino, Y. Ogawa, K. Okano, T. Ozeki, M. Saigusa, M. Sakamoto, A. Sakasai, M. Satoh, M. Shimada, R. Shimada, M. Shimizu, T. Takagi, Y. Takase, S. Takeji, T. Tanabe, K. Toi, Y. Ueda, Y. Uesugi, K. Ushigusa, M. Wakatani, Y. Yagi, K. Yamaguchi, T. Yamamoto, K. Yatsu and K. Yoshikawa
Nucl. Fusion 43 (2003) 606–613.

PRESENT RESEARCH STATUS ON DIVERTOR AND PLASMA FACING COMPONENTS FOR FUSION POWER PLANTS
S. Suzuki, Y. Ueda, K. Tokunaga, K. Sato, M. Akiba
FUSION SCIENCE AND TECHNOLOGY VOL. 44 JULY 2003.

Mechanism of blister formation on tungsten surface
T. Shimada, Y. Ueda, M. Nishikawa
Fusion Engineering and Design, Volumes 66-68, September 2003, Pages 247-251.

PSI issues at plasma facing surfaces of blankets in fusion reactors
Y. Ueda, K. Tobita, Y. Katoh
Journal of Nuclear Materials, Volumes 313-316,March 2003, Pages 32-41.

Blister formation in tungsten by hydrogen and carbon mixed ion beam irradiation
T. Shimada, H. Kikuchi, Y. Ueda, A. Sagara, M. Nishikawa
Journal of Nuclear MaterialsVolumes 313-316,March 2003, Pages 204-208.

2002年

Development of new steady-state, low-energy, and high-flux ion beam test device
Shimada,T.,Ueda,Y.,Sagara,A.,Nishikawa,M.
Review of Scientific Instruments,Volume 73,Issue 4

Production of high-flux mixed ion beam for study of plasma material interaction
Y. Ueda, H. Kikuchi, T. Shimada, A. Sagara, B. Kyoh, M. Nishikawa
Fusion Engineering and DesignVolumes 61-62, , November 2002, Pages 255-261.

Diagnosis of Thermal Aging of Cast Duplex Stainless Steel by Electromagnetic Ultrasonic Method
Yasuo Kurozumi, Yusuke Ohtsuka, Masahiro Nishikawa
Materials Evaluation, Vol.60, No.1, 2002, pp.71-77

2001年

Operating windows of the pebble divertor
K. Matsuhiro, M. Isobe, Y. Ohtsuka, Y. Ueda, M. Nishikawa
Nuclear Fusion,Volume 41, Issue 7, July 2001, Pages 827-832

Cubic boron nitride film synthesis by reactive sputtering with pulsed RF substrate bias
M.Wakatsuchi,Y.Ueda,M.Nishikawa
Diamond ans Related Materials,Volume 10,Issues 3-7,Pages 1380-1384

Erosion of Carbon Materials under High Fluxes
Y. Ueda, M. Nishikawa
Physica Scripta.T91,18-24,2001.

2000年

Development of a steady-state microwave ion source with large spherical electrodes for geometrical focusing
T.Kawakami,T.Shimada,T.Yonezawa,Y.Ueda,and M.Nishikawa
Review of Scientific Instruments,Volume 71,Issues 2Ⅱ,Pages 1144-1147

Mechanism of chemical sputtering of graphite under high flux deuterium bombardment
Y. Ueda, T. Sugai, Y. Ohtsuka and M. Nishikawa
Journal of Nuclear MaterialsVolume 282, Issues 2-3, , December 2000, Pages 216-222.

Irradiation experiments of divertor pebbles
M. Isobe, K. Matsuhiro, Y. Ueda, M. Nishikawa, J. Ohashi
Fusion Engineering and DesignVolumes 49-50, , November 2000, Pages 223-228.

Pumping performance of pebble drop divertor
K. Matsuhiro, M. Isobe, Y. Ueda, M. Nishikawa
Fusion Engineering and DesignVolumes 49-50, , November 2000, Pages 283-287.

1999年

Internal stress induced in the process of boron coating
H. Kemi, C. Sasaki, M. Kitamura, N. Satomi, Y. Ueda, M. Nishikawa
Journal of Nuclear Materials 266-269 (1999) 1108-1112.

1998年

Boron ion particles sputtered from boron films deposited on graphites
Y. Ohtsuka, M. Tsuji, Y. Kitamura, Y. Ueda, M. Isobe, M. Nishikawa
Journal of Nuclear MaterialsVolumes 258-263, Part 1, , October 1998, Pages 735-739.

Steady state wall pumping performance of pebble drop divertor
M. Isobe, Y. Ohtsuka, Y. Ueda, M. Nishikawa
Journal of Nuclear MaterialsVolumes 258-263, Part 1, , October 1998, Pages 745-749.

Ion reflection and sputtering at tungsten surface exposed to edge plasmas in TEXTOR
K. Ohya, J. Kawata, T. Tanabe, M. Wada, Y. Ueda, V. Philipps, B. Unterberg, A. Pospieszczyk, B. Schweer, F. Weschenfelder, N. Noda
Journal of Nuclear MaterialsVolumes 258-263, Part 1, , October 1998, Pages 1055-1059.

Detailed study of radiation enhanced sublimation of graphite under high flux beam irradiation
Y. Ueda, K. Shiota, Y. Kitamura, Y. Ohtsuka, M. Isobe, M. Nishikawa
Fusion Engineering and DesignVolume 41, Issues 1-4, , 1 September 1998, Pages 55-61.

High-heat-flux-exposure-experiments of a tungsten-test-limiter at TEXTOR-94
M. Wada, N. Noda, T. Ohgo, K. Ohya, T. Tanabe, Y. Ueda, V. Philipps, A. Pospieszczyk, B. Schweer, B. Unterberg, F. Weschenfelder
Journal of Nuclear MaterialsVolumes 258-263, Part 1, , October 1998, Pages 853-857.

1997年

Impact of molybdenum and tungsten test limiters on ion fluxes in the plasma edge of TEXTOR
M. Rubel, V. Philipps, U. Koegler, T. Tanabe, D. Larsson, B. Unterberg, A. Pospieszczyk, Y. Ueda, P.Wienhold
Journal of Nuclear MaterialsVolume 249, Issues 2-3, , October 1997, Pages 116-120.

Experimental studies of the link between production and penetration of impurity atoms into the plasma edge and the central impurity content in TEXTOR-94
B. Unterberg, H. Knauf, P. Lindner, V. Philipps, A. Pospieszczyk, D. Rusbuldt, U. Samm, B. Schweer, M. Rubel. T. Tanabe, Y. Ueda, M. Wada
Journal of Nuclear MaterialsVolumes 241-243, , 11 February 1997, Pages 793-798.

Impurity release from high Z test limiters immersed in TEXTOR-94 edge plasmas
M. Wada, V. Philipps, A. Pospieszczyk, B. Unterberg, B. Schweer, L. Koenen, U. Koegler, M. Tokar, J. Winter, K. Ohya, Y. Ueda, T. Tanabe and D. Larsson
Journal of Nuclear MaterialsVolumes 241-243, , 11 February 1997, Pages 799-803.

Examination of material performance of W exposed to high heat load: Postmortem analysis of W exposed to TEXTOR plasma and E-beam test stand
T. Tanabe, V. Philipps, K. Nakamura, M. Fujine, Y. Ueda, M. Wada, B. Schweer, A. Pospieszczyk, B. Unterberg
Journal of Nuclear MaterialsVolumes 241-243, , 11 February 1997, Pages 1164-1169.

1995年

Effects of impurities released from high Z test limiter on plasma performance in TEXTOR
Y. Ueda, T. Tanabe, V. Philipps, L. Könen, A. Pospieszczyk, U. Samm, B. Schweer, B. Unterberg, M. Wada, N. Hawkes and N. Noda
Journal of Nuclear MaterialsVolumes 220-222,April 1995, Pages 240-243.

High Z limiter test in TEXTOR: thermal response and post-mortem analysis
T Tanabe, Y Ueda, V Philipps, B Unterberg, A Pospieszczyk, B Schweer and M Fujine
Fusion Engineering and DesignVolume 28,March 1995, Pages 13-21.

Erosion yield of graphite and B4C irradiated by high flux deuterium beams
M. Isobe, Y. Ohtsuka, H. Shinonaga, Y. Ueda, B. Kyoh, M. Nishikawa
Fusion Engineering and Design,Volume 28, March 1995, Pages 170-175.

Recent results on ion cyclotron and combined heating of TEXTOR
R. Koch, A. M. Messiaen, J. Ongena, R. Van Nieuwenhove, G. Van Oost, G. Van Wassenhove, P. Dumortier, F. Durodie, P. E. Vandenplas, D. Van Esteer, M. Vervier, R. R. Weynants, K. H. Finken, H. Euringer, V. Philipps, U. Samm, B. Unterberg, J. Winter, G. Bertschinger, H. G. Esser, G. Fuchs, B. Giesen, E. Hintz, F. Hoenen, P. Hütteman, L. Könen, M. Korten, H. R. Koslowski, A. Krämer-Flecken, M. Lochter, G. Mank, A. Pospieszczyk, B. Schweer, H. Soltwisch, G. Telesca, R. Uhlemann, G. Waidmann, G. H. Wolf, J. Boedo, D. Gray, D. L. Hillis, T. Oyevaar, H. F. Tammen, T. Tanabe and Y. Ueda
Fusion Engineering and DesignVolume 26, Issues 1-4, 1 January 1995, Pages 103-120.

1994年

High-Z Mo-limiter test in TEXTOR. Impurity fluxes, thermal response and post-mortem analysis of Mo-limiter head
T. Tanabe, V. Philipps, Y. Ueda, B. Uneterberg, A. Pospieszczk, B. Schweer, P. Wienhold, M. Rubel, B. Emmoth
Journal of Nuclear MaterialsVolumes 212-215, Part 2, , September 1994, Pages 1370-1375.

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