Zobrazeno 1 - 10
of 162
pro vyhledávání: '"Ryuhei Kumazawa"'
Autor:
X. Gong, on behalf of EAST Team and Collaborators, The EAST Team:, Yuntao Song, Baonian Wan, Jiangang Li, Yuanxi Wan, Xinchao Wu, Fukun Liu, Junling Chen, Jiansheng Hu, Guosheng Xu, Kun Lu, Xianzu Gong, Bingjia Xiao, Yu Wu, Xiang Gao, Damao Yao, Nong Xiang, Liqun Hu, Chundong Hu, Jiefeng Wu, Biao Shen, Ge Gao, Yiyun Huang, Liuwei Xu, Qiyong Zhang, Cheonho Bae, Bin Cao, Lei Cao, Jiafeng Chang, Dalong Chen, Ran Chen, Xiaojiao Chen, Yebin Chen, Yue Chen, Yunxin Cheng, Yong Cheng, Bojiang Ding, Fang Ding, Rui Ding, Shijun Du, Yanmin Duan, Jia Fu, Daming Gao, Wei Gao, Yongqi Gu, Bin Guo, Fei Guo, Yong Guo, Xiaofeng Han, Shiying He, Ailan Hu, Chang Hu, Guanghai Hu, Huaichuan Hu, Qingsheng Hu, Yanlan Hu, Zhenhua Hu, Juan Huang, Liansheng Huang, Ming Huang, Ronglin Huang, Xiang Ji, Hua Jia, Caichao Jiang, Yinxian Jie, Songqing Ju, Defeng Kong, Erzhong Li, Guoqiang Li, Jiahong Li, Junjun Li, Miaohui Li, Pan Li, Kedong Li, Shi Li, Yadong Li, Lizhen Liang, Yanchuan Liao, Shiyao Lin, Xin Lin, Bili Ling, Haiqing Liu, Huajun Liu, Jianwen Liu, Liang Liu, Shaocheng Liu, Sheng Liu, Wenbin Liu, Xiaoju Liu, Xiaoyan Liu, Yong Liu, Zhihong Liu, Zhimin Liu, Jianhua Lu, Zhengping Luo, Dengkui Ma, Huafeng Mao, Wendong Ma, Songtao Mao, Yuzhou Mao, Tingfeng Ming, Chao Pan, Chengkang Pan, Shengmin Pan, Jing Qian, Jinping Qian, Chengming Qin, Zhiyong Qiu, Qilong Ren, Zhicai Sheng, Shihua Song, Pengjun Sun, Xiaoyang Sun, Youwen Sun, Tian Tang, Ling Tao, Ang Ti, Baoguo Wang, Feng Wang, Fudi Wang, Huihui Wang, Jian Wang, Liang Wang, Linsen Wang, Mao Wang, Ping Wang, Xiaojie Wang, Shouxin Wang, Yating Wang, Yuehang Wang, Yong Wang, Zhengchu Wang, Jianglong Wei, Jing Wei, Xuechao Wei, Bin Wu, Dajun Wu, Hao Wu, Jinhua Wu, Xiangming Wu, Yibing Wu, Zege Wu, Weibin Xi, Tianyang Xia, Yezheng Xiao, Yahong Xie, Yuanlai Xie, Handong Xu, Liqing Xu, Weiye Xu, Ning Yan, Rong Yan, Jianhua Yang, Lei Yang, Qingxi Yang, Yao Yang, Zhongshi Yang, Min Yu, Yaowei Yu, Qiping Yuan, Shuai Yuan, Qing Zang, Bin Zhang, Jian Zhang, Jizong Zhang, Liyuan Zhang, Ling Zhang, Ruirui Zhang, Shoubiao Zhang, Tao Zhang, Wei Zhang, Xinjun Zhang, Xiuqing Zhang, Yang Zhang, Zuchao Zhang, Hailin Zhao, Lianmin Zhao, Guoqiang Zhong, Ruijie Zhou, Haishan Zhou, Tianhu Zhou, Yue Zhou, Dahuan Zhu, Haisheng Zhu, Ping Zhu, Zeying Zhu, Huidong Zhuang, Zibo Zhou, Zhiyong Zhou, Zhiwei Zhou, Guizhong Zuo, International and Domestic Collaborators:, Huishan Cai, Weixing Ding, Tao Lan, Adi Liu, Wandong Liu, Shaojie Wang, Minyou Ye, Yi Yu, Ge Zhuang, Wei Chen, Guangjiu Lei, Lin Nie, Min Xu, Huang Yuan, Nanhua Yao, Zhe Gao, Long Zeng, Tieshuan Fan, Liu Chen, Guoyong Fu, Zhiwei Ma, Zengmao Sheng, Yong Xiao, Xiaogang Wang, Zhongyong Chen, Yonghua Ding, Xiwei Hu, Zijiang Wang, Fangchuan Zhong, Hongbin Ding, Dezhen Wang, Zhengxiong Wang, Chenggang Jin, Xuemei Wu, Xiaofei Yang, Jianhua Zhang, Qingyuan Hu, Xi Yuan, Changqi Chen, Shuyi Gan, Xudi Wang, Congzhong Wu, Chongwei Zhang, Ting Zhang, Wu Zhu, Erhua Kong, Kaisong Wang, Chuanli Wang, Hongtao Yang, Lixiang Zhang, Yuhong Xu, Paul Anderson, Gheni Abla, Vincent Chan, John L. Doane, Andrea Garofalo, Punit Gohil, Chung Lih Hsieh, Ruey Hong, David Humphreys, Alan Walter Hyatt, Gary Jackson, Lang Lao, Yueqiang Liu, James Leuer, John Lohr, Mohamad Ali Mahdavi, Robert Olstad, Ben Penaflor, Ron Prater, David Piglowski, Michael Schaffe, Tim Scoville, Wayne Solomon, Mike Walker, Anders Welander, Manfred Bitter, Robert Budny, Robert A. Ellis, Nat Fisch, Rich Hawryluk, Kenneth W. Hill, Joel Hosea, Michael A. Jaworski, Egemen Kolemen, Rajesh Maingi, Dennis Mansfield, Dana M. Mastrovito, Jonathan Menard, Dennis Mueller, Novmir Pablant, Lane Roquemore, Filippo Scotti, Gary Taylor, Kevin Tritz, Randy Wilson, Michael Zarnstorff, Seung Gyou Baek, Beck Bill, Paul T. Bonoli, Robert Granetz, Ron Parker, Shunichi Shiraiwa, Josh Stillerman, Greg Wallace, Stephen Wukitch, Lihua Zhou, He Huang, Kenneth Gentle, Ken Liao, Perry Philippe, William L. Rowan, Linjin Zheng, Patrick H. Diamond, George R. Tynan, Nicolas Fedorczak, Peter Manz, Lei Zhao, David Brower, William W. Heidbrink, Yubao Zhu, Calvin W. Domier, Neville C. Luhmann, Chris Holcomb, Xueqiao Xu, Eric Wang, Max E. Fenstermarcher, Mickey Wade, Donald L. Hillis, Steve Meitner, Igor V. Vinyar, Vladimir Davydenko, Igor Shikhovtsev, Naoko Ashikawa, Kasahara Hiroshi, Katsumi Ida, Shinichiro Kado, Tomita Kawamura, Saito Kenji, Ryuhei Kumazawa, Ogawa Kunihiro, Isobe Mitsutaka, Shigeru Morita, Haruhisa Nakano, Masaki Osakabe, Mizuki Sakamoto, Yasuhiko Takeiri, Kazuo Toi, Katsuyoshi Tsumori, Nobuta Yuji, Masaya Hanada, Mitsuru Kikuchi, Atsushi Kojima, Kazuhiro Watanabe, Jean-Francois Artaud, Vincent Basiuk, F. Bouquey, B. Bremond, Laurent Colas, Joan Decker, D. Douai, Annika Ekedahl, Christel Fenzi, Eric Gauthier, Gerardo Giruzzi, Marc Goniche, Dominique Guilhem, Walid Helou, Julien Hillairet, Tuong Hoang, Philippe Huynh, Frederic Imbeaux, Xavier Litaudon, Roland Magne, Yves Peysson, K. Vueillie, Xiaolan Zou, Alberto Loarte, Richard Pitts, Tom Wauters, Franz Braun, R. Bilato, Volodymyr Bobkov, J.M. Noterdaeme, Qingquan Yu, Yunfeng Liang, Jonny Pearson, Michael Rack, Joseph Banks, John Fessey, Charles Monroe, Damian King, Stefan Schmuck, Hongjuan Sun, Paul Trimble, Tom Todd, Jun-Gyo Bak, Suk-Ho Hong, Sangong Lee, Bae Young Soon, Oh Byung Hoon, Chang Doo Hee, Lee Kwang Won, Luca Amicucci, Giuseppe Calabro, Silvio Ceccuzzi, Roberto Cesario, Flavio Crisanti, Edmondo Giovannozzi, Giuseppe Ramogida, Gianmaria De Tommasi, Angelo Antonio Tuccillo, Bruno Viola, Raffaele Albanese, Roberto Ambrosino, Lucio Barbato, Stefano Mastrostefano, Alfredo Pironti, Vincenzo Pericoli Ridolfini, Rory Scannell, Fabio Villone, Volker Naulin, Anders H. Nielsen, Roman Zagorsky, Sandor Zoletnik, Chijin Xiao, B. Madsen, M. Salewski, Eugenio Schuster
Publikováno v:
Nuclear Fusion, Vol 64, Iss 11, p 112013 (2024)
Since the last IAEA-FEC in 2021, significant progress on the development of long pulse steady state scenario and its related key physics and technologies have been achieved, including the reproducible 403 s long-pulse steady-state H-mode plasma with
Externí odkaz:
https://doaj.org/article/e7d8d2e749f749ba980b1e4d3ca6cf2b
Autor:
Yanping Zhao, Jinfang Wang, Xianzu Gong, K. Saito, Tetsuo Seki, S.J. Wukitch, Ryuhei Kumazawa, Hiroshi Kasahara, L. Wang, Yan Cheng, Jean-Marie Noterdaeme, Chengming Qin, Yuzhou Mao, J. C. Hosea, T. Zhang, Songqing Ju, Xinjun Zhang, Jiuyuan Li, J. H. Zhang, Yong Song, Yu Yang, Gen Chen, Zhe Chen, Jinping Qian, Shuai Yuan, G. Taylor, Yu-Ming Lin, B. N. Wan
Publikováno v:
Nuclear Fusion
The experiments were carried out to study the coupling characteristics of the I-port antenna in the ion cyclotron range of frequencies (ICRF) in EAST. The dependencies of the coupling resistance on various parameters including the antenna position, t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a6e28fb8845c6df58b1158f005f0344
https://hdl.handle.net/11858/00-001M-0000-002D-89CA-311858/00-001M-0000-002D-CBB1-311858/00-001M-0000-002D-89C8-7
https://hdl.handle.net/11858/00-001M-0000-002D-89CA-311858/00-001M-0000-002D-CBB1-311858/00-001M-0000-002D-89C8-7
Autor:
Yu Yang, Songqing Ju, Tetsuo Seki, Yu-Ming Lin, B. N. Wan, Ryuhei Kumazawa, K. Saito, Jiuyuan Li, Jinping Qian, Xianzu Gong, Yuzhou Mao, S.J. Wukitch, L. Wang, Shuai Yuan, Hiroshi Kasahara, Rory Perkins, G. Taylor, Zhe Chen, J. C. Hosea, Gen Chen, Yan Cheng, Chengming Qin, Xinjun Zhang, H. Yang, T. Zhang, Yanping Zhao, Jean-Marie Noterdaeme, Jinguang Wang, J. H. Zhang, Yong Song
Publikováno v:
Plasma Physics and Controlled Fusion
A summary is given on recent experiments in L-mode with ion cyclotron resonance heating (ICRH) of hydrogen minority in deuterium plasmas on EAST. Experiments show a degradation of confinement with increasing power. Furthermore, the energy confinement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a287306a32eecd594c6d316c84a8261e
https://hdl.handle.net/11858/00-001M-0000-002D-A14C-C11858/00-001M-0000-002D-A14E-8
https://hdl.handle.net/11858/00-001M-0000-002D-A14C-C11858/00-001M-0000-002D-A14E-8
Autor:
Ryuhei Kumazawa
Publikováno v:
Fusion Science and Technology. 65:43-53
Characteristics of waves in plasmas are introduced based on the dispersion relation of the waves. They are interpreted over a wide area of frequencies, i.e., from below the ion cyclotron frequency ...
Autor:
Tetsuo Seki, Takashi Mutoh, K. Saito, Goro Nomura, Ryosuke Seki, Ryuhei Kumazawa, Hiroshi Kasahara, Fujio Shimpo
Publikováno v:
Fusion Engineering and Design. 88:1025-1029
A pair of ion cyclotron range of frequencies (ICRF) antennas in the large helical device (LHD), HAS antennas showed high efficiency in minority ion heating. However the low loading resistance must be increased to prevent breakdown in transmission lin
Autor:
Zhao Yanping, Chen Gen, Wang Lei, Yuan Shuai (袁帅), Zhang Xinjun, Cheng Yan(程艳), Mao Yuzhou, Ryuhei Kumazawa, Deng Xu, Lei Ye, JU Songqing (琚松青), Qin Chengming
Publikováno v:
Plasma Science and Technology. 15:261-265
An Ion Cyclotron Range of Frequency (ICRF) system with a radio frequency (RF) power of 4 × 1.5 MW was developed for the Experimental Advanced Superconducting Tokamak (EAST). High RF power transmitters were designed as a part of the research and deve
Autor:
Kenji Saito, Ryuhei Kumazawa, Tetsuo Seki, Hiroshi Kasahara, Goro Nomura, Fujio Shimpo, Hiroe Igami, Mitsutaka Isobe, Kunihiro Ogawa, Kazuo Toi, Masaki Osakabe, Masaki Nishiura, Tsuguhiro Watanabe, Satoshi Yamamoto, Makoto Ichimura, Takashi Mutoh
Publikováno v:
Plasma Science and Technology. 15:209-212
Two pairs of high-frequency magnetic probes were installed in the Large Helical Device (LHD). During the injection of a perpendicular neutral beam, ion cyclotron emissions (ICEs) with the fundamental frequency corresponding to the ion cyclotron frequ
Autor:
H. Furui, Osamu Watanabe, Kenji Saito, Fujio Shimpo, Hiroshi Kasahara, Takashi Yamaguchi, Yuichi Takase, Takahiro Hashimoto, Takanori Ambo, Takuma Wakatsuki, Yoshihiko Nagashima, Ryuhei Kumazawa, Ryota Shino, Charles P. Moeller, Hidetoshi Kakuda, Junichi Hiratsuka, M. Sonehara, Tetsuo Seki, Akira Ejiri, Kunihiko Kato, Takahiro Shinya, Takuya Sakamoto
Publikováno v:
IEEJ Transactions on Fundamentals and Materials. 132:485-489
Autor:
Tetsuo Seki, Takashi Mutoh, Hiroshi Kasahara, K. Saito, Goro Nomura, Ryuhei Kumazawa, Mitsuhiro Yokota, Fujio Shimpo
Publikováno v:
Fusion Engineering and Design. 86:987-991
New ion cyclotron range of frequencies (ICRF) antennas have just been installed in the large helical device (LHD). These side-by-side ICRF antennas are symmetrical and designed to launch fast waves with various wave numbers parallel to the magnetic f
Autor:
Gajendra Suthar, P. Ajesh, Kumar Rajnish, F. Kazarian, Hiroshi Kasahara, Manoj Patel, B. Beaumont, Ryuhei Kumazawa, Tetsuo Seki, Richa Trivedi, Raj Singh, B. Arambhadiya, Ph. Lamalle, T. Gassmann, Aparajita Mukherjee, D. Rathi, Fujio Shimpo, Harsha Machchhar, D. Patadia, Takashi Mutoh, Goro Nomura, K. Saito
Publikováno v:
Fusion Engineering and Design. 86:888-891
The Ion Cyclotron Heating and Current Drive (IC H&CD) system for ITER will provide 20 MW to the plasma. The associated Radio Frequency (RF) source system has to be compliant with all operation modes foreseen in that frame. Their specifications are fu