@article{e1ded62a65994f9188907b8705c110e4,
title = "Magnetically guided liquid metal divertor (MAGLIMD) with resilience to disruptions and ELMs",
abstract = "An innovative concept for power and particle removal from the divertor is proposed. This scheme takes full advantage of both liquid metal convection and conduction to remove heat from the divertor, which is the most difficult issue for fusion reactor design. We propose that a liquid metal (LM) should replace the solid divertor plates on the bottom of the vacuum vessel. The LM is continuously supplied from openings located at the inner separatrix strike point on the floor of the LM container on the bottom of the vacuum vessel, and exhausted from openings located at the outer separatrix strike point on the floor of the LMcontainer. The LM flow is guided along the field line to reduce MHD drag. In the event of a disruption, the current induced in the LM during the current quench is in the same direction of the plasma current. The induced LM current would either attract the plasma toward the LM divertor (leading to a benign Vertical Displacement Event), or force the LM toward the core plasma, providing automatic disruption mitigation, not requiring a learning process. The use of liquid tin instead of liquid lithium would provide greater stability against Rayleigh-Taylor and Kelvin-Helmholtz instabilities in quiescent plasmas.",
keywords = "Disruption, Divertor, Fusion reactor, Liquid metal, Particle control, Plasma facing component, Power exhaust",
author = "Michiya Shimada and Kenji Tobita",
note = "Funding Information: Fruitful discussions with Prof. Y. Hirooka of Chubu Univ., Prof. K. Hanada and Prof. C. Hu of Kyushu University, Prof. T. Kunugi of Kyoto University, Dr. S. Matsuda and Prof. M. Kondo of Tokyo Institute of Technology, Dr. D.J. Campbell of ITER, Prof. Y. Ueda and Dr. T. Takizuka of Osaka Univ., Prof. T. Hino of Hokkaido Univ., Prof. A. Nishimura, Prof. J. Miyazawa and Prof. N. Noda of National Institute for Fusion Science, Drs. M. Ono, R. Kaita, M. Jaworski and R. Majeski of Princeton Plasma Physics Laboratory, Dr. G. Federici of Fusion for Energy, and research staff of National Institutes for Quantum and Radiological Science and Technology (QST) are gratefully acknowledged. The authors would like to thank Prof. N. Nakajima of International Fusion Energy Research Centre, and Drs. Y. Ikeda and Y. Sakamoto of QST for their encouragement throughout this work. This work was supported by JSPS KAKENHI Grant Number 26630475. Funding Information: Fruitful discussions with Prof. Y. Hirooka of Chubu Univ., Prof. K. Hanada and Prof. C. Hu of Kyushu University, Prof. T. Kunugi of Kyoto University, Dr. S. Mat-suda and Prof. M. Kondo of Tokyo Institute of Technology, Dr. D.J. Campbell of ITER, Prof. Y. Ueda and Dr. T. Takizuka of Osaka Univ., Prof. T. Hino of Hokkaido Univ., Prof. A. Nishimura, Prof. J. Miyazawa and Prof. N. Noda of National Institute for Fusion Science, Drs. M. Ono, R. Kaita, M. Jaworski and R. Majeski of Princeton Plasma Physics Laboratory, Dr. G. Federici of Fusion for Energy, and research staff of National Institutes for Quantum and Radiological Science and Technology (QST) are gratefully acknowledged. The authors would like to thank Prof. N. Nakajima of International Fusion Energy Research Centre, and Drs. Y. Ikeda and Y. Sakamoto of QST for their encouragement throughout this work. This work was supported by JSPS KAKENHI Grant Number 26630475. Publisher Copyright: {\textcopyright} 2020 The Japan Society of Plasma Science and Nuclear Fusion Research.",
year = "2020",
doi = "10.1585/PFR.15.1401011",
language = "English",
volume = "15",
pages = "1--10",
journal = "Plasma and Fusion Research",
issn = "1880-6821",
publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",
}