NSTX-U research advancing the physics of spherical tokamaks

J. W. Berkery; P. O. Adebayo-Ige; H. Al Khawaldeh; G. Avdeeva; S. G. Baek; S. Banerjee; K. Barada; D. J. Battaglia; R. E. Bell; E. Belli; E. V. Belova; N. Bertelli; N. Bisai; P. T. Bonoli; M. D. Boyer; J. Butt; J. Candy; C. S. Chang; C. F. Clauser; L. D. Corona Rivera; M. Curie; P. C. de Vries; R. Diab; A. Diallo; J. Dominski; V. N. Duarte; E. D. Emdee; N. M. Ferraro; R. Fitzpatrick; E. L. Foley; E. Fredrickson; M. E. Galante; K. F. Gan; S. Gerhardt; R. Goldston; W. Guttenfelder; R. Hager; M. O. Hanson; S. C. Jardin; T. G. Jenkins; S. M. Kaye; A. Khodak; J. Kinsey; A. Kleiner; E. Kolemen; S. Ku; M. Lampert; B. Leard; B. P. LeBlanc; J. B. Lestz; F. M. Levinton; C. Liu; T. Looby; R. Lunsford; T. Macwan; R. Maingi; J. McClenaghan; J. E. Menard; S. Munaretto; M. Ono; A. Pajares; J. Parisi; J. K. Park; M. S. Parsons; B. S. Patel; Y. V. Petrov; M. Podestà; F. Poli; M. Porcelli; T. Rafiq; S. A. Sabbagh; I. Sánchez Villar; E. Schuster; J. Schwartz; A. Sharma; S. Shiraiwa; P. Sinha; D. Smith; S. Smith; V. A. Soukhanovskii; G. Staebler; E. Startsev; B. Stratton; K. E. Thome; W. Tierens; M. Tobin; I. U. Uzun-Kaymak; B. Van Compernolle; J. Wai; W. Wang; W. Wehner; A. Welander; J. Yang; V. Zamkovska; X. Zhang; X. L. Zhu; S. Zweben

doi:10.1088/1741-4326/ad3092

NSTX-U research advancing the physics of spherical tokamaks

J. W. Berkery, P. O. Adebayo-Ige, H. Al Khawaldeh, G. Avdeeva, S. G. Baek, S. Banerjee, K. Barada, D. J. Battaglia, R. E. Bell, E. Belli, E. V. Belova, N. Bertelli, N. Bisai, P. T. Bonoli, M. D. Boyer, J. Butt, J. Candy, C. S. Chang, C. F. Clauser, L. D. Corona RiveraM. Curie, P. C. de Vries, R. Diab, A. Diallo, J. Dominski, V. N. Duarte, E. D. Emdee, N. M. Ferraro, R. Fitzpatrick, E. L. Foley, E. Fredrickson, M. E. Galante, K. F. Gan, S. Gerhardt, R. Goldston, W. Guttenfelder, R. Hager, M. O. Hanson, S. C. Jardin, T. G. Jenkins, S. M. Kaye, A. Khodak, J. Kinsey, A. Kleiner, E. Kolemen, S. Ku, M. Lampert, B. Leard, B. P. LeBlanc, J. B. Lestz, F. M. Levinton, C. Liu, T. Looby, R. Lunsford, T. Macwan, R. Maingi, J. McClenaghan, J. E. Menard, S. Munaretto, M. Ono, A. Pajares, J. Parisi, J. K. Park, M. S. Parsons, B. S. Patel, Y. V. Petrov, M. Podestà, F. Poli, M. Porcelli, T. Rafiq, S. A. Sabbagh, I. Sánchez Villar, E. Schuster, J. Schwartz, A. Sharma, S. Shiraiwa, P. Sinha, D. Smith, S. Smith, V. A. Soukhanovskii, G. Staebler, E. Startsev, B. Stratton, K. E. Thome, W. Tierens, M. Tobin, I. U. Uzun-Kaymak, B. Van Compernolle, J. Wai, W. Wang, W. Wehner, A. Welander, J. Yang, V. Zamkovska, X. Zhang, X. L. Zhu, S. Zweben

Plasma Theory and Modeling

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The objectives of NSTX-U research are to reinforce the advantages of STs while addressing the challenges. To extend confinement physics of low-A, high beta plasmas to lower collisionality levels, understanding of the transport mechanisms that set confinement performance and pedestal profiles is being advanced through gyrokinetic simulations, reduced model development, and comparison to NSTX experiment, as well as improved simulation of RF heating. To develop stable non-inductive scenarios needed for steady-state operation, various performance-limiting modes of instability were studied, including MHD, tearing modes, and energetic particle instabilities. Predictive tools were developed, covering disruptions, runaway electrons, equilibrium reconstruction, and control tools. To develop power and particle handling techniques to optimize plasma exhaust in high performance scenarios, innovative lithium-based solutions are being developed to handle the very high heat flux levels that the increased heating power and compact geometry of NSTX-U will produce, and will be seen in future STs. Predictive capabilities accounting for plasma phenomena, like edge harmonic oscillations, ELMs, and blobs, are being tested and improved. In these ways, NSTX-U researchers are advancing the physics understanding of ST plasmas to maximize the benefit that will be gained from further NSTX-U experiments and to increase confidence in projections to future devices.

Original language	English
Article number	112004
Journal	Nuclear Fusion
Volume	64
Issue number	11
DOIs	https://doi.org/10.1088/1741-4326/ad3092
State	Published - Nov 2024

Funding

This work was supported by the U.S. Department of Energy under contract numbers DE-AC02-09CH11466 (PPPL), DE-SC0008309 (UT, Knoxville), DE-SC0013977 (Lehigh), DE-SC0021385 (Lehigh), DE-SC0021113 (GA), DE-FG02-95ER54309 (GA), DE-FG02-91ER54109 (MIT), DE-SC0021156 (UT, Austin), DE-SC0021625 (Nova Photonics), DE-SC0021311 (Columbia), and DE-AC52-07NA27344 (LLNL). Additionally: EP/R034737/1 (UKAEA). A part of this research used resources of the National Energy Research Scientific Computing Center (NERSC), which is supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. A part of this work was supported by the Department of Energy early career research program. Part of the data analysis was performed using the OMFIT integrated modeling framework [].

Funders	Funder number
UK Atomic Energy Authority
Office of Science
Massachusetts Institute of Technology	DE-SC0021156, DE-SC0021625, DE-AC52-07NA27344, DE-SC0021311
U.S. Department of Energy	DE-AC02-05CH11231, DE-AC02-09CH11466
Princeton Plasma Physics Laboratory	DE-SC0013977, DE-SC0021385, DE-SC0008309, DE-FG02-91ER54109, DE-FG02-95ER54309, DE-SC0021113
Lawrence Livermore National Laboratory	EP/R034737/1

Keywords

NSTX
NSTX-U
magnetic confinement fusion
spherical tokamak

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1088/1741-4326/ad3092

Cite this

Berkery, J. W., Adebayo-Ige, P. O., Al Khawaldeh, H., Avdeeva, G., Baek, S. G., Banerjee, S., Barada, K., Battaglia, D. J., Bell, R. E., Belli, E., Belova, E. V., Bertelli, N., Bisai, N., Bonoli, P. T., Boyer, M. D., Butt, J., Candy, J., Chang, C. S., Clauser, C. F., ... Zweben, S. (2024). NSTX-U research advancing the physics of spherical tokamaks. Nuclear Fusion, 64(11), Article 112004. https://doi.org/10.1088/1741-4326/ad3092

@article{2f64243500a44f388d093a5a14c14998,

title = "NSTX-U research advancing the physics of spherical tokamaks",

abstract = "The objectives of NSTX-U research are to reinforce the advantages of STs while addressing the challenges. To extend confinement physics of low-A, high beta plasmas to lower collisionality levels, understanding of the transport mechanisms that set confinement performance and pedestal profiles is being advanced through gyrokinetic simulations, reduced model development, and comparison to NSTX experiment, as well as improved simulation of RF heating. To develop stable non-inductive scenarios needed for steady-state operation, various performance-limiting modes of instability were studied, including MHD, tearing modes, and energetic particle instabilities. Predictive tools were developed, covering disruptions, runaway electrons, equilibrium reconstruction, and control tools. To develop power and particle handling techniques to optimize plasma exhaust in high performance scenarios, innovative lithium-based solutions are being developed to handle the very high heat flux levels that the increased heating power and compact geometry of NSTX-U will produce, and will be seen in future STs. Predictive capabilities accounting for plasma phenomena, like edge harmonic oscillations, ELMs, and blobs, are being tested and improved. In these ways, NSTX-U researchers are advancing the physics understanding of ST plasmas to maximize the benefit that will be gained from further NSTX-U experiments and to increase confidence in projections to future devices.",

keywords = "NSTX, NSTX-U, magnetic confinement fusion, spherical tokamak",

author = "Berkery, {J. W.} and Adebayo-Ige, {P. O.} and {Al Khawaldeh}, H. and G. Avdeeva and Baek, {S. G.} and S. Banerjee and K. Barada and Battaglia, {D. J.} and Bell, {R. E.} and E. Belli and Belova, {E. V.} and N. Bertelli and N. Bisai and Bonoli, {P. T.} and Boyer, {M. D.} and J. Butt and J. Candy and Chang, {C. S.} and Clauser, {C. F.} and {Corona Rivera}, {L. D.} and M. Curie and {de Vries}, {P. C.} and R. Diab and A. Diallo and J. Dominski and Duarte, {V. N.} and Emdee, {E. D.} and Ferraro, {N. M.} and R. Fitzpatrick and Foley, {E. L.} and E. Fredrickson and Galante, {M. E.} and Gan, {K. F.} and S. Gerhardt and R. Goldston and W. Guttenfelder and R. Hager and Hanson, {M. O.} and Jardin, {S. C.} and Jenkins, {T. G.} and Kaye, {S. M.} and A. Khodak and J. Kinsey and A. Kleiner and E. Kolemen and S. Ku and M. Lampert and B. Leard and LeBlanc, {B. P.} and Lestz, {J. B.} and Levinton, {F. M.} and C. Liu and T. Looby and R. Lunsford and T. Macwan and R. Maingi and J. McClenaghan and Menard, {J. E.} and S. Munaretto and M. Ono and A. Pajares and J. Parisi and Park, {J. K.} and Parsons, {M. S.} and Patel, {B. S.} and Petrov, {Y. V.} and M. Podest{\`a} and F. Poli and M. Porcelli and T. Rafiq and Sabbagh, {S. A.} and {S{\'a}nchez Villar}, I. and E. Schuster and J. Schwartz and A. Sharma and S. Shiraiwa and P. Sinha and D. Smith and S. Smith and Soukhanovskii, {V. A.} and G. Staebler and E. Startsev and B. Stratton and Thome, {K. E.} and W. Tierens and M. Tobin and Uzun-Kaymak, {I. U.} and {Van Compernolle}, B. and J. Wai and W. Wang and W. Wehner and A. Welander and J. Yang and V. Zamkovska and X. Zhang and Zhu, {X. L.} and S. Zweben",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Published by IOP Publishing Ltd on behalf of the IAEA.",

year = "2024",

month = nov,

doi = "10.1088/1741-4326/ad3092",

language = "English",

volume = "64",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing",

number = "11",

}

Berkery, JW, Adebayo-Ige, PO, Al Khawaldeh, H, Avdeeva, G, Baek, SG, Banerjee, S, Barada, K, Battaglia, DJ, Bell, RE, Belli, E, Belova, EV, Bertelli, N, Bisai, N, Bonoli, PT, Boyer, MD, Butt, J, Candy, J, Chang, CS, Clauser, CF, Corona Rivera, LD, Curie, M, de Vries, PC, Diab, R, Diallo, A, Dominski, J, Duarte, VN, Emdee, ED, Ferraro, NM, Fitzpatrick, R, Foley, EL, Fredrickson, E, Galante, ME, Gan, KF, Gerhardt, S, Goldston, R, Guttenfelder, W, Hager, R, Hanson, MO, Jardin, SC, Jenkins, TG, Kaye, SM, Khodak, A, Kinsey, J, Kleiner, A, Kolemen, E, Ku, S, Lampert, M, Leard, B, LeBlanc, BP, Lestz, JB, Levinton, FM, Liu, C, Looby, T, Lunsford, R, Macwan, T, Maingi, R, McClenaghan, J, Menard, JE, Munaretto, S, Ono, M, Pajares, A, Parisi, J, Park, JK, Parsons, MS, Patel, BS, Petrov, YV, Podestà, M, Poli, F, Porcelli, M, Rafiq, T, Sabbagh, SA, Sánchez Villar, I, Schuster, E, Schwartz, J, Sharma, A, Shiraiwa, S, Sinha, P, Smith, D, Smith, S, Soukhanovskii, VA, Staebler, G, Startsev, E, Stratton, B, Thome, KE, Tierens, W, Tobin, M, Uzun-Kaymak, IU, Van Compernolle, B, Wai, J, Wang, W, Wehner, W, Welander, A, Yang, J, Zamkovska, V, Zhang, X, Zhu, XL & Zweben, S 2024, 'NSTX-U research advancing the physics of spherical tokamaks', Nuclear Fusion, vol. 64, no. 11, 112004. https://doi.org/10.1088/1741-4326/ad3092

TY - JOUR

T1 - NSTX-U research advancing the physics of spherical tokamaks

AU - Berkery, J. W.

AU - Adebayo-Ige, P. O.

AU - Al Khawaldeh, H.

AU - Avdeeva, G.

AU - Baek, S. G.

AU - Banerjee, S.

AU - Barada, K.

AU - Battaglia, D. J.

AU - Bell, R. E.

AU - Belli, E.

AU - Belova, E. V.

AU - Bertelli, N.

AU - Bisai, N.

AU - Bonoli, P. T.

AU - Boyer, M. D.

AU - Butt, J.

AU - Candy, J.

AU - Chang, C. S.

AU - Clauser, C. F.

AU - Corona Rivera, L. D.

AU - Curie, M.

AU - de Vries, P. C.

AU - Diab, R.

AU - Diallo, A.

AU - Dominski, J.

AU - Duarte, V. N.

AU - Emdee, E. D.

AU - Ferraro, N. M.

AU - Fitzpatrick, R.

AU - Foley, E. L.

AU - Fredrickson, E.

AU - Galante, M. E.

AU - Gan, K. F.

AU - Gerhardt, S.

AU - Goldston, R.

AU - Guttenfelder, W.

AU - Hager, R.

AU - Hanson, M. O.

AU - Jardin, S. C.

AU - Jenkins, T. G.

AU - Kaye, S. M.

AU - Khodak, A.

AU - Kinsey, J.

AU - Kleiner, A.

AU - Kolemen, E.

AU - Ku, S.

AU - Lampert, M.

AU - Leard, B.

AU - LeBlanc, B. P.

AU - Lestz, J. B.

AU - Levinton, F. M.

AU - Liu, C.

AU - Looby, T.

AU - Lunsford, R.

AU - Macwan, T.

AU - Maingi, R.

AU - McClenaghan, J.

AU - Menard, J. E.

AU - Munaretto, S.

AU - Ono, M.

AU - Pajares, A.

AU - Parisi, J.

AU - Park, J. K.

AU - Parsons, M. S.

AU - Patel, B. S.

AU - Petrov, Y. V.

AU - Podestà, M.

AU - Poli, F.

AU - Porcelli, M.

AU - Rafiq, T.

AU - Sabbagh, S. A.

AU - Sánchez Villar, I.

AU - Schuster, E.

AU - Schwartz, J.

AU - Sharma, A.

AU - Shiraiwa, S.

AU - Sinha, P.

AU - Smith, D.

AU - Smith, S.

AU - Soukhanovskii, V. A.

AU - Staebler, G.

AU - Startsev, E.

AU - Stratton, B.

AU - Thome, K. E.

AU - Tierens, W.

AU - Tobin, M.

AU - Uzun-Kaymak, I. U.

AU - Van Compernolle, B.

AU - Wai, J.

AU - Wang, W.

AU - Wehner, W.

AU - Welander, A.

AU - Yang, J.

AU - Zamkovska, V.

AU - Zhang, X.

AU - Zhu, X. L.

AU - Zweben, S.

PY - 2024/11

Y1 - 2024/11

N2 - The objectives of NSTX-U research are to reinforce the advantages of STs while addressing the challenges. To extend confinement physics of low-A, high beta plasmas to lower collisionality levels, understanding of the transport mechanisms that set confinement performance and pedestal profiles is being advanced through gyrokinetic simulations, reduced model development, and comparison to NSTX experiment, as well as improved simulation of RF heating. To develop stable non-inductive scenarios needed for steady-state operation, various performance-limiting modes of instability were studied, including MHD, tearing modes, and energetic particle instabilities. Predictive tools were developed, covering disruptions, runaway electrons, equilibrium reconstruction, and control tools. To develop power and particle handling techniques to optimize plasma exhaust in high performance scenarios, innovative lithium-based solutions are being developed to handle the very high heat flux levels that the increased heating power and compact geometry of NSTX-U will produce, and will be seen in future STs. Predictive capabilities accounting for plasma phenomena, like edge harmonic oscillations, ELMs, and blobs, are being tested and improved. In these ways, NSTX-U researchers are advancing the physics understanding of ST plasmas to maximize the benefit that will be gained from further NSTX-U experiments and to increase confidence in projections to future devices.

AB - The objectives of NSTX-U research are to reinforce the advantages of STs while addressing the challenges. To extend confinement physics of low-A, high beta plasmas to lower collisionality levels, understanding of the transport mechanisms that set confinement performance and pedestal profiles is being advanced through gyrokinetic simulations, reduced model development, and comparison to NSTX experiment, as well as improved simulation of RF heating. To develop stable non-inductive scenarios needed for steady-state operation, various performance-limiting modes of instability were studied, including MHD, tearing modes, and energetic particle instabilities. Predictive tools were developed, covering disruptions, runaway electrons, equilibrium reconstruction, and control tools. To develop power and particle handling techniques to optimize plasma exhaust in high performance scenarios, innovative lithium-based solutions are being developed to handle the very high heat flux levels that the increased heating power and compact geometry of NSTX-U will produce, and will be seen in future STs. Predictive capabilities accounting for plasma phenomena, like edge harmonic oscillations, ELMs, and blobs, are being tested and improved. In these ways, NSTX-U researchers are advancing the physics understanding of ST plasmas to maximize the benefit that will be gained from further NSTX-U experiments and to increase confidence in projections to future devices.

KW - NSTX

KW - NSTX-U

KW - magnetic confinement fusion

KW - spherical tokamak

UR - http://www.scopus.com/inward/record.url?scp=85201976728&partnerID=8YFLogxK

U2 - 10.1088/1741-4326/ad3092

DO - 10.1088/1741-4326/ad3092

M3 - Article

AN - SCOPUS:85201976728

SN - 0029-5515

VL - 64

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 11

M1 - 112004

ER -

NSTX-U research advancing the physics of spherical tokamaks

Abstract

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Keywords

UN SDGs

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