J
Joon-Wook Ahn
Researcher at Oak Ridge National Laboratory
Publications - 60
Citations - 1600
Joon-Wook Ahn is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Divertor & Heat flux. The author has an hindex of 24, co-authored 60 publications receiving 1336 citations. Previous affiliations of Joon-Wook Ahn include Princeton Plasma Physics Laboratory.
Papers
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Journal ArticleDOI
Gyrokinetic projection of the divertor heat-flux width from present tokamaks to ITER
Choong-Seock Chang,Seung-Hoe Ku,A. Loarte,V. Parail,F. Köchl,M. Romanelli,Rajesh Maingi,Joon-Wook Ahn,T.K. Gray,J. W. Hughes,Brian LaBombard,T. Leonard,M. A. Makowski,J. L. Terry +13 more
TL;DR: Kukushkin et al. as mentioned in this paper used the XGC1 edge gyrokinetic code to study the width of the heat-flux to divertor plates in attached plasma condition.
Journal ArticleDOI
Extension of the operational regime of the LHD towards a deuterium experiment
Yasuhiko Takeiri,Yasuhiko Takeiri,Tomohiro Morisaki,Tomohiro Morisaki,Masaki Osakabe,Masaki Osakabe,Masayuki Yokoyama,Masayuki Yokoyama,Satoru Sakakibara,Satoru Sakakibara,Hiroyuki R. Takahashi,Hiroyuki R. Takahashi,Yuji Nakamura,Yuji Nakamura,T. Oishi,T. Oishi,Gen Motojima,Gen Motojima,Sadayoshi Murakami,K. Ito,Akira Ejiri,Shinsaku Imagawa,Shinsaku Imagawa,Shigeru Inagaki,Mitsutaka Isobe,Mitsutaka Isobe,Shin Kubo,Sadao Masamune,Toshiyuki Mito,Toshiyuki Mito,Izumi Murakami,Izumi Murakami,K. Nagaoka,Kazunobu Nagasaki,K. Nishimura,Mizuki Sakamoto,Ryuichi Sakamoto,Ryuichi Sakamoto,Takashi Shimozuma,Kyosuke Shinohara,Hideo Sugama,Hideo Sugama,K.Y. Watanabe,Joon-Wook Ahn,Naofumi Akata,Naofumi Akata,Tsuyoshi Akiyama,Naoko Ashikawa,Naoko Ashikawa,J. Baldzuhn,T. Bando,E. Bernard,F. Castejón,Hirotaka Chikaraishi,M. Emoto,Todd Evans,Naomichi Ezumi,Keisuke Fujii,Hisamichi Funaba,Motoshi Goto,Motoshi Goto,Takuya Goto,Takuya Goto,D. Gradic,Y. Gunsu,Shinji Hamaguchi,Hiroki Hasegawa,Hiroki Hasegawa,Y. Hayashi,C. Hidalgo,Takeshi Higashiguchi,Yoshiki Hirooka,Yoshiki Hirooka,Yoshimitsu Hishinuma,Ritoku Horiuchi,Ritoku Horiuchi,Katsuji Ichiguchi,Katsuji Ichiguchi,Katsumi Ida,Katsumi Ida,Takeshi Ido,Hiroe Igami,Katsunori Ikeda,Seiji Ishiguro,Seiji Ishiguro,R. Ishizaki,Akihiro Ishizawa,Atsushi Ito,Atsushi Ito,Y. Ito,A. Iwamoto,Shuji Kamio,Kensaku Kamiya,Osamu Kaneko,Ryutaro Kanno,Ryutaro Kanno,Hiroshi Kasahara,Daiji Kato,Daiji Kato,T. Kato,Kazuo Kawahata,Gakushi Kawamura,Gakushi Kawamura,Masashi Kisaki,Sumio Kitajima,W.H. Ko,Makoto I. Kobayashi,Makoto I. Kobayashi,Shinji Kobayashi,T. Kobayashi,T. Kobayashi,Kazunori Koga,Akira Kohyama,Ryuhei Kumazawa,J.H. Lee,D. López-Bruna,Ryohei Makino,Suguru Masuzaki,Yutaka Matsumoto,Hiroto Matsuura,Osamu Mitarai,Osamu Mitarai,H. Miura,J. Miyazawa,J. Miyazawa,Naoki Mizuguchi,Chanho Moon,S. Morita,S. Morita,Toseo Moritaka,Kiyofumi Mukai,Kiyofumi Mukai,Takeo Muroga,Takeo Muroga,Sadatsugu Muto,Takashi Mutoh,Tetsuro Nagasaka,Tetsuro Nagasaka,Yoshio Nagayama,Yoshio Nagayama,Noriyoshi Nakajima,Hideya Nakanishi,Hideya Nakanishi,Haruhisa Nakano,Haruhisa Nakano,Motoki Nakata,Motoki Nakata,Yoshiro Narushima,Yoshiro Narushima,Daisuke Nishijima,Arata Nishimura,Seiya Nishimura,Takeo Nishitani,Masaki Nishiura,Yuji Nobuta,H. Noto,Masanori Nunami,Masanori Nunami,Tetsuhiro Obana,Tetsuhiro Obana,Kunihiro Ogawa,Kunihiro Ogawa,Satoshi Ohdachi,Satoshi Ohdachi,M. Ohno,Noriyasu Ohno,Hiroaki Ohtani,Hiroaki Ohtani,M. Okamoto,Yasuhisa Oya,T. Ozaki,Byron J. Peterson,Byron J. Peterson,M. Preynas,S. Sagara,S. Sagara,K. Saito,Hiroyuki A. Sakaue,Akio Sanpei,Shinsuke Satake,Shinsuke Satake,M. Sato,Takuya Saze,Takuya Saze,Oliver Schmitz,Ryosuke Seki,Ryosuke Seki,Tetsuo Seki,I. A. Sharov,Akihiro Shimizu,Masaharu Shiratani,Mamoru Shoji,C. Skinner,R. Soga,Torsten Stange,Chihiro Suzuki,Yasuhiro Suzuki,Yasuhiro Suzuki,Suguru Takada,Kazuya Takahata,Kazuya Takahata,Arimichi Takayama,Sadatsugu Takayama,Y. Takemura,Y. Takemura,Y. Takeuchi,Hitoshi Tamura,Naoki Tamura,Hirohiko Tanaka,Kenji Tanaka,M. Y. Tanaka,M. Y. Tanaka,Teruya Tanaka,Teruya Tanaka,Yasunori Tanaka,Shinichiro Toda,Yasushi Todo,Yasushi Todo,Kazuo Toi,Mieko Toida,Masayuki Tokitani,Masayuki Tokitani,Tokihiko Tokuzawa,Hayato Tsuchiya,Toru Ii Tsujimura,Katsuyoshi Tsumori,Katsuyoshi Tsumori,Shunsuke Usami,Shunsuke Usami,José Luis Velasco,Hao Wang,Tomo-Hiko Watanabe,Tsuguhiro Watanabe,Juro Yagi,Juro Yagi,Miyuki Yajima,Hiroshi Yamada,Hiroshi Yamada,Ichihiro Yamada,Osamu Yamagishi,N. Yamaguchi,Y. Yamamoto,Nagato Yanagi,Nagato Yanagi,Ryo Yasuhara,E. Yatsuka,Nobuaki Yoshida,Mikiro Yoshinuma,Mikiro Yoshinuma,Shinji Yoshimura,Yasuo Yoshimura +250 more
Journal ArticleDOI
Gyrokinetic projection of the divertor heat-flux width from present tokamaks to ITER
Choong-Seock Chang,Seung-Hoe Ku,A. Loarte,V. Parail,F. Köchl,M. Romanelli,Rajesh Maingi,Joon-Wook Ahn,T.K. Gray,J. W. Hughes,Brian LaBombard,T. Leonard,M. A. Makowski,J. L. Terry +13 more
TL;DR: In this paper, the authors used the XGC1 edge gyrokinetic code for a high fidelity prediction for the width of the heat-flux to divertor plates in attached plasma condition.
Journal ArticleDOI
3D field phase-space control in tokamak plasmas
Jong-Kyu Park,Young-Mu Jeon,Yongkyoon In,Joon-Wook Ahn,Raffi Nazikian,G. Y. Park,Jae-Hyun Kim,H. H. Lee,Won-Ha Ko,Hyunseok Kim,Nikolas Logan,Zhirui Wang,Eliot Feibush,Jonathan Menard,Michael C. Zarnstroff +14 more
TL;DR: In this article, a phase-space visualization of the full 3D field-operating windows of a tokamak is presented to predict which configurations will maintain high confinement without magnetohydrodynamic instabilities in an entire region of plasmas.
Journal ArticleDOI
Overview of KSTAR initial operation
M. Kwon,Y.K. Oh,H.L. Yang,H.K. Na,Y.S. Kim,Jong-Gu Kwak,W.C. Kim,J.Y. Kim,Joon-Wook Ahn,Y.S. Bae,S.H. Baek,J.G. Bak,E.N. Bang,Choong-Seock Chang,D.H. Chang,I. Chavdarovski,Z.Y. Chen,K.W. Cho,Moo-Hyun Cho,Wonho Choe,J.H. Choi,Y. Chu,Kyu-Sun Chung,Patrick Diamond,H.J. Do,N.W. Eidietis,A.C. England,Larry R. Grisham,T.S. Hahm,S.H. Hahn,W.S. Han,Takaki Hatae,D. L. Hillis,J.S. Hong,Suk-Ho Hong,S.R. Hong,D. Humphrey,Yong-Seok Hwang,A.W. Hyatt,Yongkyoon In,G.L. Jackson,Y.B. Jang,You-Moon Jeon,J.I. Jeong,N.Y. Jeong,S.H. Jeong,H.G. Jhang,J.K. Jin,M. Joung,J. Ju,Kazuo Kawahata,C.H. Kim,D.H. Kim,Hee-Su Kim,Hyun-Seok Kim,H.K. Kim,H.T. Kim,Jik-Soo Kim,J.C. Kim,Jong-Su Kim,Jung-Su Kim,Kyung-Min Kim,Ki Min Kim,K.P. Kim,M.K. Kim,S.H. Kim,S.S. Kim,S.T. Kim,S.W. Kim,Y.J. Kim,Y.K. Kim,Y.O. Kim,W.H. Ko,Yuichiro Kogi,J.D. Kong,S. Kubo,R. Kumazawa,S.W. Kwak,J.M. Kwon,O. J. Kwon,M. Leconte,D.G. Lee,D.K. Lee,D.R. Lee,D.S. Lee,H.J. Lee,Jaehyun Lee,K.D. Lee,K.S. Lee,S.G. Lee,Seung Hun Lee,S.I. Lee,S.M. Lee,T.G. Lee,W.C. Lee,Woochang Lee,J. Leur,D.S. Lim,John Lohr,A. Mase,D. Mueller,K.M. Moon,T. Mutoh,Yong-Su Na,Yoshio Nagayama,Yong-Un Nam,Won Namkung,B.H. Oh,S.G. Oh,S.T. Oh,B.H. Park,D.S. Park,Hyeon K. Park,H.T. Park,Jong-Kyu Park,J.S. Park,K.R. Park,M.K. Park,S.H. Park,S.I. Park,Y.M. Park,Y. S. Park,B. Patterson,S.A. Sabbagh,K. Saito,S. Sajjad,Keishi Sakamoto,Dongcheol Seo,S.H. Seo,J.C. Seol,Yuejiang Shi,N.H. Song,H. J. Sun,L. Terzolo,M.L. Walker,S.J. Wang,Kazuhiro Watanabe,A.S. Welander,Hyun-Jong Woo,I.S. Woo,Masatoshi Yagi,Y. Yaowei,Y. Yonekawa,K.I. Yoo,J.W. Yoo,G.S. Yoon,S.W. Yoon +146 more
TL;DR: The first phase (2008-2012) of operation of KSTAR was dedicated to the development of operational capabilities for a superconducting device with relatively short pulse as mentioned in this paper, which achieved steady-state operations with high performance plasmas relevant to ITER and future reactors.