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

Abstract

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 leadsmore » 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.« less

Authors:
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  1. MIT Plasma Science and Fusion Center, Cambridge, MA (United States)
  2. Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
  3. Univ. of Texas, Austin, TX (United States)
  4. Univ. of York (United Kingdom)
  5. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  6. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  7. Ecole Polytechnique Federale Lausanne (Switzlerland)
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1463827
Report Number(s):
LLNL-JRNL-741410
Journal ID: ISSN 0029-5515; 895963; TRN: US1902330
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Fusion
Additional Journal Information:
Journal Volume: 55; Journal Issue: 5; Journal ID: ISSN 0029-5515
Publisher:
IOP Science
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

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., and Zweben, S. J. ADX: a high field, high power density, advanced divertor and RF tokamak. United States: N. p., 2015. Web. doi:10.1088/0029-5515/55/5/053020.
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. ADX: a high field, high power density, advanced divertor and RF tokamak. United States. https://doi.org/10.1088/0029-5515/55/5/053020
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., and Zweben, S. J. Fri . "ADX: a high field, high power density, advanced divertor and RF tokamak". United States. https://doi.org/10.1088/0029-5515/55/5/053020. https://www.osti.gov/servlets/purl/1463827.
@article{osti_1463827,
title = {ADX: a high field, high power density, advanced divertor and RF tokamak},
author = {LaBombard, B. and Marmar, E. and Irby, J. and Terry, J. L. and Vieira, R. and Wallace, G. and Whyte, D. G. and Wolfe, S. and Wukitch, S. and Baek, S. and Beck, W. and Bonoli, P. and Brunner, D. and Doody, J. and Ellis, R. and Ernst, D. and Fiore, C. and Freidberg, J. P. and Golfinopoulos, T. and Granetz, R. and Greenwald, M. and Hartwig, Z. S. and Hubbard, A. and Hughes, J. W. and Hutchinson, I. H. and Kessel, C. and Kotschenreuther, M. and Leccacorvi, R. and Lin, Y. and Lipschultz, B. and Mahajan, S. and Minervini, J. and Mumgaard, R. and Nygren, R. and Parker, R. and Poli, F. and Porkolab, M. and Reinke, M. L. and Rice, J. and Rognlien, T. and Rowan, W. and Shiraiwa, S. and Terry, D. and Theiler, C. and Titus, P. and Umansky, M. and Valanju, P. and Walk, J. and White, A. and Wilson, J. R. and Wright, G. and Zweben, S. J.},
abstractNote = {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.},
doi = {10.1088/0029-5515/55/5/053020},
journal = {Nuclear Fusion},
number = 5,
volume = 55,
place = {United States},
year = {Fri Apr 17 00:00:00 EDT 2015},
month = {Fri Apr 17 00:00:00 EDT 2015}
}

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