CAKE: Consistent Automatic Kinetic Equilibrium reconstruction

Xing, Z. A.; Eldon, D.; Nelson, A. O.; Roelofs, M. A.; Eggert, W. J.; Izacard, O.; Glasser, A. S.; Logan, N. C.; Meneghini, O.; Smith, S. P.; Nazikian, R.; Kolemen, E.

doi:10.1016/j.fusengdes.2020.112163

CAKE: Consistent Automatic Kinetic Equilibrium reconstruction

Journal Article · Thu Dec 24 00:00:00 EST 2020 · Fusion Engineering and Design

DOI:https://doi.org/10.1016/j.fusengdes.2020.112163· OSTI ID:1782462

Xing, Z. A. ^[1]; Eldon, D. ^[2]; Nelson, A. O. ^[3]; Roelofs, M. A. ^[4]; Eggert, W. J. ^[3]; Izacard, O. ^[3]; Glasser, A. S. ^[3]; Logan, N. C. ^[5]; Meneghini, O. ^[6]; Smith, S. P. ^[6]; Nazikian, R. ^[7]; Kolemen, E. ^[8]

Princeton Univ., NJ (United States); General Atomics
Princeton Univ., NJ (United States); General Atomics, San Diego, CA (United States)
Princeton Univ., NJ (United States)
Eindhoven Univ. of Technology (The Netherlands)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
General Atomics, San Diego, CA (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Princeton Univ., NJ (United States); Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

Magnetohydrodynamic equilibrium reconstructions with kinetic constraints are an essential input of many tokamak stability and transport analysis work- flows. The reconstructions themselves also contain useful information about pressure and current density distributions within the plasma which can be used to drive other calculations. While standardized magnetic-only, and partially kinetic equilibrium reconstruction is widely available and used, re- constructions for well diagnosed machines such as DIII-D, that incorporates a large and heterogeneous set of internal diagnostic measurements yet robustly reaching high numerical accuracy have been a time intensive, manual process. The Consistent Automatic Kinetic Equilibrium reconstruction tool (CAKE) has been developed and implemented at DIII-D for producing low error, kinetically constrained reconstructions without human intervention, and to identify strategies for doing so that would be broadly applicable. Here, the techniques employed to allow CAKE to handle data of limited quality and availability, as well as the full automation of the workflow may assist future efforts to form kinetic constraint profiles in real time plasma control applications.

View Accepted Manuscript (DOE)

Research Organization:: General Atomics, San Diego, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Princeton Univ., NJ (United States)

Sponsoring Organization:: USDOE; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division

Grant/Contract Number:: AC02-09CH11466; AC52-07NA27344; FC02-04ER54698; SC0015878

OSTI ID:: 1782462

Alternate ID(s):: OSTI ID: 2325211
OSTI ID: 1811228
OSTI ID: 23195008
OSTI ID: 1923780

Report Number(s):: LLNL-JRNL--824432

Journal Information:: Fusion Engineering and Design, Journal Name: Fusion Engineering and Design Vol. 163; ISSN 0920-3796

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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