World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
57
Citations
11171
World Ranking
2679
National Ranking
816

D.A. Humphreys publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where D.A. Humphreys sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 469 publications — 93rd percentile

93% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

D.A. Humphreys D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where D.A. Humphreys sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 57 D-Index — 74th percentile

74% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

D.A. Humphreys is affiliated with General Atomics in the United States and has contributed extensively to research in physics and engineering, with a focus on nuclear and high energy physics as well as materials science. Their body of work spans several subfields, including nuclear and high energy physics, materials chemistry, biomedical engineering, aerospace engineering, and astronomy and astrophysics.

The scientist's research covers several key topics related to magnetic confinement fusion and materials relevant to fusion technologies. These main topics include:

  • Magnetic confinement fusion research
  • Fusion materials and technologies
  • Superconducting materials and applications
  • Particle accelerators and beam dynamics
  • Nuclear reactor physics and engineering
  • Ionosphere and magnetosphere dynamics
  • Laser-plasma interactions and diagnostics

D.A. Humphreys has published prolifically in notable scientific venues. The most frequent publication venues are:

  • Fusion Engineering and Design
  • Nuclear Fusion
  • Plasma Physics and Controlled Fusion
  • IEEE Transactions on Plasma Science
  • SSRN Electronic Journal

Among recent publications, several papers stand out due to their focus and impact:

  • Integration of full divertor detachment with improved core confinement for tokamak fusion plasmas, 2021, Nature Communications
  • Advancing Fusion with Machine Learning Research Needs Workshop Report, 2020, Journal of Fusion Energy
  • Comparison of divertor behavior and plasma confinement between argon and neon seeding in EAST, 2021, Nuclear Fusion
  • Development and experimental qualification of novel disruption prevention techniques on DIII-D, 2021, Nuclear Fusion
  • Scenario adaptive disruption prediction study for next generation burning-plasma tokamaks, 2021, Nuclear Fusion

The scientist frequently collaborates with several researchers, including:

  • J.L. Barr
  • D. Eldon
  • A.W. Hyatt
  • M.L. Walker
  • B. Sammuli

Overall, D.A. Humphreys' research integrates complex aspects of nuclear fusion plasma physics, materials science, and engineering disciplines. Their work reflects a multidisciplinary approach aimed at advancing fusion energy technologies, focusing on both experimental and theoretical developments in magnetic confinement fusion and associated materials technology.

Best Publications

  • Chapter 3: MHD stability, operational limits and disruptions

    T. C. Hender;J. C. Wesley;J. Bialek;A. Bondeson

  • Real time equilibrium reconstruction for tokamak discharge control

    J.R. Ferron;M.L. Walker;L.L. Lao;H.E. St. John

  • Control of neoclassical tearing modes in DIII–D

    R. J. La Haye;S. Günter;D. A. Humphreys;J. Lohr

  • Principal Physics Developments Evaluated in the ITER Design Review

    R. J. Hawryluk;D. J. Campbell;G. Janeschitz;P. R. Thomas

  • Status of research toward the ITER disruption mitigation system

    E M Hollmann;P B Aleynikov;Tünde Fülöp;D A Humphreys

  • Complete suppression of the m = 2/n = 1 neoclassical tearing mode using electron cyclotron current drive in DIII-D

    C.C. Petty;R.J. La Haye;T.C. Luce;D.A. Humphreys

  • Study on H-mode access at low density with lower hybrid current drive and lithium-wall coatings on the EAST superconducting tokamak

    G.S. Xu;B.N. Wan;J.G. Li;X.Z. Gong

  • Control and dissipation of runaway electron beams created during rapid shutdown experiments in DIII-D

    E.M. Hollmann;M.E. Austin;J.A. Boedo;N.H. Brooks

  • Demonstration of Rapid Shutdown Using Large Shattered Deuterium Pellet Injection in DIII-D

    Nicolas Jc Commaux;Larry R Baylor;Thomas C Jernigan;E. M. Hollmann

  • Experimental vertical stability studies for ITER performance and design guidance

    D.A. Humphreys;T.A. Casper;N. Eidietis;M. Ferrara

  • Disruption mitigation studies in DIII-D

    P. L. Taylor;A. G. Kellman;T. E. Evans;D. S. Gray

  • EAST plasma control system

    B.J. Xiao;D.A. Humphreys;M.L. Walker;A. Hyatt

  • Measurements of impurity and heat dynamics during noble gas jet-initiated fast plasma shutdown for disruption mitigation in DIII-D

    E. M. Hollmann;T. C. Jernigan;M. Groth;D. G. Whyte

  • Disruption mitigation with high-pressure noble gas injection

    D.G. Whyte;T.C. Jernigan;D.A. Humphreys;A.W. Hyatt

  • Runaway electron confinement modelling for rapid shutdown scenarios in DIII-D, Alcator C-Mod and ITER

    V.A. Izzo;E.M. Hollmann;A.N. James;J.H. Yu

  • Plasma current, position and shape feedback control on EAST

    Q.P. Yuan;B.J. Xiao;Z.P. Luo;M.L. Walker

  • Towards model-based current profile control at DIII-D

    Y. Ou;T.C. Luce;E. Schuster;J.R. Ferron

  • Gas jet disruption mitigation studies on Alcator C-Mod and DIII-D

    R.S. Granetz;E.M. Hollmann;D.G. Whyte;V.A. Izzo

  • Fusion Nuclear Science Facility Candidates

    R. D. Stambaugh;V. S. Chan;A. M. Garofalo;M. Sawan

  • Design and simulation of extremum-seeking open-loop optimal control of current profile in the DIII-D tokamak

    Y Ou;C Xu;E Schuster;T C Luce

  • Measurements of injected impurity assimilation during massive gas injection experiments in DIII-D

    E.M. Hollmann;T.C. Jernigan;P.B. Parks;J.A. Boedo

Frequent Co-Authors

M.L. Walker
M.L. Walker General Atomics (United States)
R.J. La Haye
R.J. La Haye General Atomics (United States)
S.A. Sabbagh
S.A. Sabbagh Columbia University
Massimiliano Mattei
Massimiliano Mattei University of Naples Federico II
David R. Smith
David R. Smith Duke University
Rajesh Maingi
Rajesh Maingi Princeton Plasma Physics Laboratory

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