Potential Impacts of Liquid-Metal Plasma-Facing Components on Heating and Current Drive Actuators for a Fusion Nuclear Science Facility

Wallace, G. M.; Kessel, C. E.; Hosea, J.; Majeski, R.; Wilson, J. R.; Rognlien, T.; Waganer, L. M.

doi:10.1080/15361055.2019.1629253

Title: Potential Impacts of Liquid-Metal Plasma-Facing Components on Heating and Current Drive Actuators for a Fusion Nuclear Science Facility

Journal Article · 24 July 2019 · Fusion Science and Technology

DOI: https://doi.org/10.1080/15361055.2019.1629253 · OSTI ID:1631088

^[1];

^[2]; Hosea, J. ^[3]; Majeski, R. ^[3]; Wilson, J. R. ^[3]; Rognlien, T. ^[4]; Waganer, L. M. ^[5]

Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Consultant

This paper addresses the potential impact of liquid metal (LM) plasma-facing components (PFCs) for the heating and current drive (H&CD) actuators on the Fusion Nuclear Science Facility (FNSF) fusion reactor. Fulfilling the high neutron fluence mission of the FSNF requires steady-state operation for extremely long pulses (months to years) between maintenance opportunities. The use of LM as a surface material is one strategy for extending the lifetime of the PFCs for long pulse operation in a high heat flux, high neutron flux environment like that of the FNSF. Liquid metal PFCs provide possible pathways forward on many difficult aspects of a fusion reactor; however, the LM PFCs also bring new challenges and unknowns with respect to the H&CD actuators needed to provide steady-state operation. The development of LM-compatible materials for radio-frequency (RF) antennas will be critical, as well as strategies for minimizing contamination of antenna surfaces and the core plasma. Successful deployment of LM PFCs on the FNSF will require operational experience with RF in a LM environment both on test stands and in an integrated toroidal environment.

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Research Organization:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1631088

Report Number(s):: LLNL-JRNL-791492; 990684; TRN: US2200738

Journal Information:: Fusion Science and Technology, Vol. 76, Issue 1; ISSN 1536-1055

Publisher:: American Nuclear SocietyCopyright Statement

Country of Publication:: United States

Language:: English

References (36)

The Impacts of Liquid Metal Plasma-Facing Components on Fusion Reactor Safety and Tritium Management Humrickhouse, Paul W.; Merrill, Brad J.; Yoon, Su-Jong Fusion Science and Technology, Vol. 75, Issue 8 https://doi.org/10.1080/15361055.2019.1658464	journal	November 2019
Critical Exploration of Liquid Metal Plasma-Facing Components in a Fusion Nuclear Science Facility Kessel, C. E.; Andruczyk, D.; Blanchard, J. P. Fusion Science and Technology, Vol. 75, Issue 8 https://doi.org/10.1080/15361055.2019.1610685	journal	June 2019
Compatibility of lithium plasma-facing surfaces with high edge temperatures in the Lithium Tokamak Experiment Majeski, R.; Bell, R. E.; Boyle, D. P. Physics of Plasmas, Vol. 24, Issue 5 https://doi.org/10.1063/1.4977916	journal	May 2017
Radiofrequency sheaths and impurity generation by ICRF antennas Perkins, F. W. Nuclear Fusion, Vol. 29, Issue 4 https://doi.org/10.1088/0029-5515/29/4/004	journal	April 1989
Plasma Sheath Formation by Radio-Frequency Fields Butler, H. S.; Kino, G. S. Physics of Fluids, Vol. 6, Issue 9 https://doi.org/10.1063/1.1706905	journal	January 1963
Waveguide launching of lower hybrid waves Brambilla, M. Nuclear Fusion, Vol. 19, Issue 10 https://doi.org/10.1088/0029-5515/19/10/006	journal	October 1979
Progress on ion cyclotron range of frequencies heating physics and technology in support of the International Tokamak Experimental Reactor Wilson, J. R.; Bonoli, P. T. Physics of Plasmas, Vol. 22, Issue 2 https://doi.org/10.1063/1.4901090	journal	November 2014
A new examination of secondary electron yield data Lin, Yinghong; Joy, David C. Surface and Interface Analysis, Vol. 37, Issue 11 https://doi.org/10.1002/sia.2107	journal	January 2005
Modelling of power limit in RF antenna waveguides operated in the lower hybrid range of frequency Goniche, M.; El Mhari, C.; Francisquez, M. Nuclear Fusion, Vol. 54, Issue 1 https://doi.org/10.1088/0029-5515/54/1/013003	journal	November 2013
Overview of the fusion nuclear science facility, a credible break-in step on the path to fusion energy Kessel, C. E.; Blanchard, J. P.; Davis, A. Fusion Engineering and Design, Vol. 135 https://doi.org/10.1016/j.fusengdes.2017.05.081	journal	October 2018
Secondary electron emission Bruining, H.; De Boer, J. H. Physica, Vol. 5, Issue 1 https://doi.org/10.1016/S0031-8914(38)80103-8	journal	January 1938
Assessment of compatibility of ICRF antenna operation with full W wall in ASDEX Upgrade Bobkov, Vl. V.; Braun, F.; Dux, R. Nuclear Fusion, Vol. 50, Issue 3 https://doi.org/10.1088/0029-5515/50/3/035004	journal	February 2010
Electron impact secondary electron emissions from elemental and compound solids Haque, A. K. Fazlul; Haque, M. M.; Patoary, M. Atiqur R. Vacuum, Vol. 141 https://doi.org/10.1016/j.vacuum.2017.04.004	journal	July 2017
Results from an improved flowing liquid lithium limiter with increased flow uniformity in high power plasmas in EAST Zuo, G. Z.; Hu, J. S.; Maingi, R. Nuclear Fusion, Vol. 59, Issue 1 https://doi.org/10.1088/1741-4326/aaedcb	journal	November 2018
Sputtering of tungsten and molybdenum Eckstein, W.; László, J. Journal of Nuclear Materials, Vol. 183, Issue 1-2 https://doi.org/10.1016/0022-3115(91)90466-K	journal	July 1991
D+, He+ and H+ sputtering of solid and liquid phase tin Coventry, M. D.; Allain, J. P.; Ruzic, D. N. Journal of Nuclear Materials, Vol. 313-316 https://doi.org/10.1016/S0022-3115(02)01369-7	journal	March 2003
Upgrades toward high-heat flux, liquid lithium plasma-facing components in the NSTX-U Jaworski, M. A.; Brooks, A.; Kaita, R. Fusion Engineering and Design, Vol. 112 https://doi.org/10.1016/j.fusengdes.2016.07.009	journal	November 2016
The ITER design Aymar, R.; Barabaschi, P.; Shimomura, Y. Plasma Physics and Controlled Fusion, Vol. 44, Issue 5 https://doi.org/10.1088/0741-3335/44/5/304	journal	April 2002
Impurity screening behavior of the high-field side scrape-off layer in near-double-null configurations: prospect for mitigating plasma–material interactions on RF actuators and first-wall components LaBombard, B.; Kuang, A. Q.; Brunner, D. Nuclear Fusion, Vol. 57, Issue 7 https://doi.org/10.1088/1741-4326/aa6dd2	journal	May 2017
Scrape-off layer plasma and neutral characteristics and their interactions with walls for FNSF Rognlien, T. D.; Rensink, M. E.; Stotler, D. P. Fusion Engineering and Design, Vol. 135 https://doi.org/10.1016/j.fusengdes.2017.07.024	journal	October 2018
Transport and drift-driven plasma flow components in the Alcator C-Mod boundary plasma Smick, N.; LaBombard, B.; Hutchinson, I. H. Nuclear Fusion, Vol. 53, Issue 2 https://doi.org/10.1088/0029-5515/53/2/023001	journal	January 2013
ICRF specific plasma wall interactions in JET with the ITER-like wall Bobkov, Vl.; Arnoux, G.; Brezinsek, S. Journal of Nuclear Materials, Vol. 438 https://doi.org/10.1016/j.jnucmat.2013.01.044	journal	July 2013
The examination of the FNSF maintenance approach Waganer, Lester; Kessel, Chuck; Malang, Siegfried Fusion Engineering and Design, Vol. 135 https://doi.org/10.1016/j.fusengdes.2017.07.027	journal	October 2018
Secondary electron emission from lithium and lithium compounds Capece, A. M.; Patino, M. I.; Raitses, Y. Applied Physics Letters, Vol. 109, Issue 1 https://doi.org/10.1063/1.4955461	journal	July 2016
Initial Neutronics Investigation of a Liquid-Metal Plasma-Facing Fusion Nuclear Science Facility Bohm, Tim D.; Davis, Andrew; Harb, Moataz S. Fusion Science and Technology, Vol. 75, Issue 6 https://doi.org/10.1080/15361055.2019.1600930	journal	May 2019
Secondary electron emission of tin and tin-lithium under low energy helium plasma exposure Kvon, V.; Oyarzabal, E.; Zoethout, E. Nuclear Materials and Energy, Vol. 13 https://doi.org/10.1016/j.nme.2017.09.005	journal	December 2017
RF plasma edge interactions and their impact on ICRF antenna performance in Alcator C-Mod Wukitch, S. J.; Lipschultz, B.; Marmar, E. Journal of Nuclear Materials, Vol. 363-365 https://doi.org/10.1016/j.jnucmat.2007.01.273	journal	June 2007
High field side lower hybrid wave launch for steady state plasma sustainment Bonoli, P. T.; Wallace, G. M.; Shiraiwa, S. Nuclear Fusion, Vol. 58, Issue 12 https://doi.org/10.1088/1741-4326/aae7e9	journal	November 2018
Effect of multipactor discharge on Alcator C-Mod ion cyclotron range of frequency heating Graves, T. P.; Wukitch, S. J.; LaBombard, B. Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, Vol. 24, Issue 3 https://doi.org/10.1116/1.2194937	journal	May 2006
Design and Analysis of the Liquid Metal Free-Surface Divertor Cooling System Khodak, A.; Kessel, C.; Tillack, M. Fusion Science and Technology, Vol. 75, Issue 8 https://doi.org/10.1080/15361055.2019.1643689	journal	November 2019
Integrated Liquid Metal Flowing First Wall and Open-Surface Divertor for Fusion Nuclear Science Facility: Concept, Design, and Analysis Smolentsev, Sergey; Rognlien, Thomas; Tillack, Mark Fusion Science and Technology, Vol. 75, Issue 8 https://doi.org/10.1080/15361055.2019.1610649	journal	May 2019
Secondary electron emission Shroff, A. M.; Tonnerre, J. C. International Technical Digest on Electron Devices Meeting https://doi.org/10.1109/iedm.1989.74301	conference	January 1989
Thermal and Electromagnetic Transients in Liquid Metal Surfaces of the FNSF Blanchard, James; Martin, Carl Fusion Science and Technology, Vol. 75, Issue 8 https://doi.org/10.1080/15361055.2019.1602399	journal	May 2019
Heating and current drive actuators study for FNSF in the ion cyclotron and lower hybrid range of frequency Wallace, G. M.; Bonoli, P. T.; Wukitch, S. J. Fusion Engineering and Design, Vol. 135 https://doi.org/10.1016/j.fusengdes.2017.06.025	journal	October 2018
Core plasma physics basis and its impacts on the FNSF Kessel, C. E.; Batchelor, D. B.; Bonoli, P. T. Fusion Engineering and Design, Vol. 135 https://doi.org/10.1016/j.fusengdes.2017.06.003	journal	October 2018
Robots at the tipping point: the road to iRobot Roomba Jones, J. L. IEEE Robotics & Automation Magazine, Vol. 13, Issue 1 https://doi.org/10.1109/MRA.2006.1598056	journal	March 2006

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Title: Potential Impacts of Liquid-Metal Plasma-Facing Components on Heating and Current Drive Actuators for a Fusion Nuclear Science Facility

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References (36)

Figures / Tables (6)

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