ADX: a high field, high power density, advanced divertor and RF tokamak

LaBombard, B.; Marmar, E.; Irby, J.; Terry, J. L.; Vieira, R.; Wallace, G.; Whyte, D. G.; Wolfe, S.; Wukitch, S.; Baek, S.; Beck, W.; Bonoli, P.; Brunner, D.; Doody, J.; Ellis, R.; Ernst, D.; Fiore, C.; Freidberg, J. P.; Golfinopoulos, T.; Granetz, R.; Greenwald, M.; Hartwig, Z. S.; Hubbard, A.; Hughes, J. W.; Hutchinson, I. H.; Kessel, C.; Kotschenreuther, M.; Leccacorvi, R.; Lin, Y.; Lipschultz, B.; Mahajan, S.; Minervini, J.; Mumgaard, R.; Nygren, R.; Parker, R.; Poli, F.; Porkolab, M.; Reinke, M. L.; Rice, J.; Rognlien, T.; Rowan, W.; Shiraiwa, S.; Terry, D.; Theiler, C.; Titus, P.; Umansky, M.; Valanju, P.; Walk, J.; White, A.; Wilson, J. R.; Wright, G.; Zweben, S. J.

doi:10.1088/0029-5515/55/5/053020

Title: ADX: a high field, high power density, advanced divertor and RF tokamak

Journal Article · Fri Apr 17 00:00:00 EDT 2015 · Nuclear Fusion

DOI:https://doi.org/10.1088/0029-5515/55/5/053020· OSTI ID:1463827

LaBombard, B. ^[1]; Marmar, E. ^[1]; Irby, J. ^[1]; Terry, J. L. ^[1]; Vieira, R. ^[1]; Wallace, G. ^[1]; Whyte, D. G. ^[1]; Wolfe, S. ^[1]; Wukitch, S. ^[1]; Baek, S. ^[1]; Beck, W. ^[1]; Bonoli, P. ^[1]; Brunner, D. ^[1]; Doody, J. ^[1]; Ellis, R. ^[2]; Ernst, D. ^[1]; Fiore, C. ^[1]; Freidberg, J. P. ^[1]; Golfinopoulos, T. ^[1]; Granetz, R. ^[1] more »

MIT Plasma Science and Fusion Center, Cambridge, MA (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Univ. of Texas, Austin, TX (United States)
Univ. of York (United Kingdom)
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Ecole Polytechnique Federale Lausanne (Switzlerland)

The MIT Plasma Science and Fusion Center and collaborators are proposing a high-performance Advanced Divertor and RF tokamak eXperiment (ADX) – a tokamak specifically designed to address critical gaps in the world fusion research program on the pathway to next step devices: fusion nuclear science facility (FNSF), fusion pilot plant (FPP), and/or demonstration power plant (DEMO). This high field (≥ 6.5 tesla, 1.5 MA), high power density facility (P/S ~ 1.5 MW/m2) will test innovative divertor ideas, including an ‘X-point target divertor’ concept, at the required performance parameters – reactor-level boundary plasma pressures, magnetic field strengths and parallel heat flux densities entering into the divertor region – while simultaneously producing high performance core plasma conditions that are prototypical of a reactor: equilibrated electrons and ions, regimes with low or no torque, and no fueling from external heating and current drive systems. Equally important, the experimental platform will test innovative concepts for lower hybrid current drive (LHCD) and ion-cyclotron range of frequency (ICRF) actuators with the unprecedented ability to deploy launch structures both on the lowmagnetic- field side and the high-magnetic-field side – the latter being a location where energetic plasma-material interactions can be controlled and favorable RF wave physics leads to efficient current drive, current profile control, heating and flow drive. This triple combination – advanced divertors, advanced RF actuators, reactor-prototypical core plasma conditions – will enable ADX to explore enhanced core confinement physics, such as made possible by reversed central shear, using only the types of external drive systems that are considered viable for a fusion power plant. Such an integrated demonstration of high-performance core-divertor operation with steady state sustainment would pave the way toward an attractive pilot plant, as envisioned in the ARC concept (Affordable, Robust, Compact) [B. N. Sorbom, et al., submitted to Fusion Engineering Design, 2014] that makes use of high-temperature superconductor technology – a high-field (9.25 tesla) tokamak the size of the Joint European Torus that produces 270 MW of net electricity.

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

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

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1463827

Report Number(s):: LLNL-JRNL-741410; 895963; TRN: US1902330

Journal Information:: Nuclear Fusion, Vol. 55, Issue 5; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 78 works

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Separating the roles of magnetic topology and neutral trapping in modifying the detachment threshold for TCV Fil, A.; Lipschultz, B.; Moulton, D. Plasma Physics and Controlled Fusion, Vol. 62, Issue 3 https://doi.org/10.1088/1361-6587/ab69bb	journal	January 2020
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Radiative heat exhaust in Alcator C-Mod I-mode plasmas Reinke, M. L.; Brunner, D.; Golfinopoulos, T. Nuclear Fusion, Vol. 59, Issue 4 https://doi.org/10.1088/1741-4326/ab04cf	journal	March 2019
Self-consistent simulation of supersonic plasma flows in advanced divertors Togo, Satoshi; Takizuka, Tomonori; Reiser, Dirk Nuclear Fusion, Vol. 59, Issue 7 https://doi.org/10.1088/1741-4326/ab1f2c	journal	June 2019
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Performance assessment of long-legged tightly-baffled divertor geometries in the ARC reactor concept Wigram, M. R. K.; LaBombard, B.; Umansky, M. V. Nuclear Fusion, Vol. 59, Issue 10 https://doi.org/10.1088/1741-4326/ab394f	journal	September 2019
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