World's Best Scientists 2026 revealed!

D-Index & Metrics

Chemistry

D-Index
71
Citations
19595
World Ranking
5491
National Ranking
1697

R. Stephen Berry publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where R. Stephen Berry sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 644 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 253 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 364 publications — 75th percentile

75% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

R. Stephen Berry D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where R. Stephen Berry sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 776 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 647 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 71 D-Index — 70th percentile

70% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

R. Stephen Berry was affiliated with the University of Chicago in the United States. Their research spanned multiple fields within engineering and physics, with a strong focus on particle accelerators and related technologies.

The primary fields of study in Berry's work were Engineering, with 30 publications, and Physics and Astronomy, including 9 publications. Within these, notable subfields included Electrical and Electronic Engineering, Aerospace Engineering, Radiation, Pulmonary and Respiratory Medicine, and Atomic and Molecular Physics and Optics.

Key research topics addressed by Berry included:

  • Particle accelerators and beam dynamics
  • Particle Accelerators and Free-Electron Lasers
  • Radiation Therapy and Dosimetry
  • Gyrotron and Vacuum Electronics Research
  • Nuclear Physics and Applications
  • Pulsed Power Technology Applications
  • Particle Detector Development and Performance

Berry's recent papers covered several aspects of radiation physics, accelerator technology, and materials science. Among these were:

  • Linear accelerator for security, industrial and medical applications with rapid beam parameter variation, 2021, Radiation Physics and Chemistry
  • Compact X-Band electron linac for radiotherapy and security applications, 2021, Radiation Physics and Chemistry
  • Ultrahigh nitrogen-vacancy center concentration in diamond, 2021, Carbon
  • Thermionic microwave gun for terahertz and synchrotron light sources, 2020, Review of Scientific Instruments
  • Radioisotope replacement with compact electron linear accelerators, 2023, Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms

Berry frequently collaborated with other researchers in the field. The most common coauthors were:

  • R. Agustsson
  • Sergey Kutsaev
  • S. Boucher
  • A. Smirnov
  • A. Diego

Several venues published Berry's work repeatedly, reflecting ongoing contributions in certain journals and platforms. Frequent publication venues included:

  • Radiation Physics and Chemistry
  • Review of Scientific Instruments
  • arXiv (Cornell University)
  • Carbon
  • Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms

Best Publications

  • Correlation of Rates of Intramolecular Tunneling Processes, with Application to Some Group V Compounds

    R. Stephen Berry

  • Theory of Elementary Atomic and Molecular Processes in Gases

    E. E. Nikitin;R. Stephen Berry

  • Solid–liquid phase changes in simulated isoenergetic Ar13

    Julius Jellinek;Thomas L. Beck;R. Stephen Berry

  • Thermodynamics in finite time

    Bjarne Andresen;Peter Salamon;R. Stephen Berry

  • The effect of the range of the potential on the structures of clusters

    Jonathan P. K. Doye;David J. Wales;R. Stephen Berry

  • Absorption Spectrum of Gaseous F- and Electron Affinities of the Halogen Atoms

    R. Stephen Berry;Curt W. Reimann

  • Ionization of Molecules at Low Energies

    R. Stephen Berry

  • Rare gas clusters: Solids, liquids, slush, and magic numbers

    Thomas L. Beck;Julius Jellinek;R. Stephen Berry

  • Thermodynamics for Processes in Finite Time

    Bjarne Andresen;R. Stephen Berry;Mary Jo Ondrechen;Peter Salamon

  • Thermodynamics in finite time: extremals for imperfect heat engines

    Bjarne Andresen;Peter Salamon;R. Stephen Berry

  • Melting and freezing of small argon clusters

    David J. Wales;R. Stephen Berry

  • Minimum entropy production and the optimization of heat engines

    Peter Salamon;Abraham Nitzan;Bjarne Andresen;R. Stephen Berry

  • ANGULAR DISTRIBUTION OF MOLECULAR PHOTOELECTRONS.

    John C. Tully;R. Stephen Berry;Bryan J. Dalton

  • The interplay of structure and dynamics in the melting of small clusters

    Thomas L. Beck;R. Stephen Berry

  • Melting and freezing in isothermal Ar13 clusters

    Heidi L. Davis;Julius Jellinek;R. Stephen Berry

  • The distance fluctuation criterion for melting: Comparison of square-well and Morse potential models for clusters and homopolymers

    Yaoqi Zhou;Martin Karplus;Keith D. Ball;R. Stephen Berry

  • POTENTIAL SURFACES AND DYNAMICS : WHAT CLUSTERS TELL US

    R. Stephen. Berry

  • From Topographies to Dynamics on Multidimensional Potential Energy Surfaces of Atomic Clusters

    Keith D. Ball;R. Stephen Berry;Ralph E. Kunz;Feng-Yin Li

  • The onset of nonrigid dynamics and the melting transition in Ar7

    François G. Amar;R. Stephen Berry

  • Surface melting of clusters and implications for bulk matter

    Hai-Ping Cheng;R. Stephen Berry

  • Radiationless Transitions and Molecular Quantum Beats

    Joshua Jortner;R. Stephen Berry

  • Small free negative ions

    R. Stephen Berry

Frequent Co-Authors

Bjarne Andresen
Bjarne Andresen University of Copenhagen
David J. Wales
David J. Wales University of Cambridge
Julius Jellinek
Julius Jellinek Argonne National Laboratory
David M. Leitner
David M. Leitner University of Nevada Reno
Tobin R. Sosnick
Tobin R. Sosnick University of Chicago
Joshua Jortner
Joshua Jortner Tel Aviv University
Stuart A. Rice
Stuart A. Rice University of Chicago
Karl F. Freed
Karl F. Freed University of Chicago
Abraham Nitzan
Abraham Nitzan University of Pennsylvania
Jerry Bernholc
Jerry Bernholc North Carolina State University

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