H. St. John

4.1k citations

38 papers · 3.6k · 2 hit papers · h-index 20

Impact in

Nuclear and High Energy Physics top 5%
- Magnetic confinement fusion research
- Laser-Plasma Interactions and Diagnostics
Astronomy and Astrophysics top 5%
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics

Papers in

Nuclear and High Energy Physics 34
- Magnetic confinement fusion research 34
- Laser-Plasma Interactions and Diagnostics 5
Biomedical Engineering 21
- Superconducting Materials and Applications 21

Co-authors: Lang L. Lao (7 shared papers)Wayne Pfeiffer (3 shared papers)R.D. Stambaugh (2 shared papers)A.G. Kellman (1 shared paper)T. S. Taylor (7 shared papers)Richard J. Groebner (11 shared papers)J. R. Ferron (5 shared papers)Edward Strait (4 shared papers)
Journals: Nuclear Fusion (10 papers)Plasma Physics and Controlled Fusion (8 papers)Physical Review Letters (4 papers)Fusion Science & Technology (2 papers)Computer Physics Communications (1 paper)
Partner nations: United States Germany United Kingdom

In The Last Decade

H. St. John

37 papers receiving 3.5k citations

H. St. John's Hit Papers

align trajectories log scale

Equilibrium analysis of current profiles in tokamaks 1990 · 589 citations

What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

1990 Nuclear Fusion
1985 Nuclear Fusion

Peers

Countries citing papers authored by H. St. John

Since Specialization

Citations

This map shows the geographic impact of H. St. John's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by H. St. John with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites H. St. John more than expected).

Fields of papers citing papers by H. St. John

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. St. John. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by H. St. John. The network helps show where H. St. John may publish in the future.

Co-authors

The 25 scholars most cited alongside H. St. John, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with H. St. John Line = papers co-authored together H. St. John links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 38 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Reconstruction of current profile parameters and plasma shapes in tokamaks Nuclear Fusion ·Lang L. Lao, H. St. John, R.D. Stambaugh, A.G. Kellman, Wayne Pfeiffer Hit paper breakdown →	1985	1561
2	Equilibrium analysis of current profiles in tokamaks Nuclear Fusion ·Lang L. Lao, J. R. Ferron, Richard J. Groebner, W. Howl, H. St. John, Edward Strait, T. S. Taylor Hit paper breakdown →	1990	589
3	Separation of βpand ℓiin tokamaks of non-circular cross-section Nuclear Fusion ·Lang L. Lao, H. St. John, R.D. Stambaugh, Wayne Pfeiffer	1985	218
4	High Beta and Enhanced Confinement in a Second Stable Core VH-Mode Advanced Tokamak Physical Review Letters ·A. D. Turnbull, T. S. Taylor, Y. R. Lin‐Liu, H. St. John	1995	161
5	Confinement physics of H-mode discharges in DIII-D Plasma Physics and Controlled Fusion ·Keith H. Burrell, Steven Allen, G. Bramson, N.H. Brooks, R.W. Callis, Thomas N. Carlstrom, M. S. Chu, Anthony P. Colleraine	1989	136
6	Experimentally inferred ion thermal diffusivity profiles in the Doublet III tokamak: Comparison with neoclassical theory Nuclear Fusion ·Richard J. Groebner, Wayne Pfeiffer, Frederick P. Blau, Keith H. Burrell, E. Fairbanks, R. Seraydarian, H. St. John, R. E. Stockdale	1986	103
7	Optimized profiles for improved confinement and stability in the DIII-D tokamak Plasma Physics and Controlled Fusion ·T. S. Taylor, H. St. John, A. D. Turnbull +12 others	1994	79
8	Confinement of angular momentum in divertor and limiter discharges in the Doublet III tokamak Nuclear Fusion ·Keith H. Burrell, Richard J. Groebner, H. St. John, R. Seraydarian	1988	70
9	H-mode energy confinement scaling from the DIII-D and JET tokamaks Nuclear Fusion ·David P. Schissel, J. C. DeBoo, Keith H. Burrell, J. R. Ferron, Richard J. Groebner, H. St. John, Ronald D. Stambaugh, B. J. D. Tubbing	1991	65
10	Observation of H -Mode Confinement in the DIII-D Tokamak with Electron Cyclotron Heating Physical Review Letters ·John Lohr, Barry W. Stallard, Ronald Prater, R. T. Snider, Keith H. Burrell, Richard J. Groebner, D. N. Hill, Kyoko Matsuda	1988	65
11	The ARIES Advanced and Conservative Tokamak Power Plant Study Fusion Science & Technology ·C. Kessel, Mark S. Tillack, Farrokh Najmabadi, F. M. Poli, K. Ghantous, Н. Н. Гореленков, X. R. Wang, D. Navaei	2014	58
12	Measurements and implications of Zeff profiles on the DIII-D tokamak The Physics of Fluids ·David P. Schissel, R. E. Stockdale, H. St. John, William M. Tang	1988	55
13	High internal inductance improved confinementH-mode discharges obtained with an elongation ramp technique in the DIII-D tokamak Physical Review Letters ·Lang L. Lao, J. R. Ferron, T. S. Taylor, Keith H. Burrell, Vincent S Chan, Ming Sheng Chu, J. C. DeBoo, E. J. Doyle	1993	50
14	Neutral-Beam Current-Driven High-Poloidal-Beta Operation of the DIII-D Tokamak Physical Review Letters ·Thomas C. Simonen, M. Matsuoka, Dilip K. Bhadra, Keith H. Burrell, R.W. Callis, M. S. Chance, Ming Sheng Chu, J. M. Greene	1988	48
15	Confinement and stability of VH mode discharges in the DIII-D Tokamak Nuclear Fusion ·Thomas Osborne, Keith H. Burrell, Thomas N. Carlstrom, M. S. Chu, J. C. DeBoo, P. Gohil, Charles Greenfield, Richard J. Groebner	1995	47
16	Investigations of VH-mode in DIII-D and JET Plasma Physics and Controlled Fusion ·Charles Greenfield, B. Balet, Keith H. Burrell, Ming Sheng Chu, J.G. Cordey, J. C. DeBoo, N Deliyanakis, E. J. Doyle	1993	47
17	Integrated modelling of the current profile in steady-state and hybrid ITER scenarios Nuclear Fusion ·Wayne A. Houlberg, C. Gormezano, J.F. Artaud, Emanuele Barbato, Vladimir A. Basiuk, A. Bécoulet, Paul Bonoli, Robert V. Budny	2005	44
18	Evolution of high βp plasmas with improved stability and confinement* Physics of Plasmas ·Peter A. Politzer, T. A. Casper, Cary B Forest, P. Gohil, William Walter Heidbrink, Alan Hyatt, R. A. James, R.A. Jong	1994	36
19	Recent VH-mode results on DIII-D Plasma Physics and Controlled Fusion ·Thomas Osborne, Keith H. Burrell, Thomas N. Carlstrom, Ming Sheng Chu, J. C. DeBoo, E. J. Doyle, J. R. Ferron, P. Gohil	1994	28
20	Recent results from DIII-D and their implications for next generation tokamaks Plasma Physics and Controlled Fusion ·J.L. Luxon, G. Bramson, Keith H. Burrell, N.H. Brooks, D. Buchenauer, R.W. Callis, Thomas N. Carlstrom, C. Challis	1990	25

About H. St. John

H. St. John is a scholar working on Nuclear and High Energy Physics, Biomedical Engineering, Aerospace Engineering, Materials Chemistry and Astronomy and Astrophysics, having authored 38 papers that have together received 3.6k indexed citations. Recurring topics across this work include Magnetic confinement fusion research (34 papers), Superconducting Materials and Applications (21 papers), Fusion materials and technologies (16 papers), Particle accelerators and beam dynamics (12 papers), Plasma Diagnostics and Applications (6 papers), Ionosphere and magnetosphere dynamics (6 papers), Laser-Plasma Interactions and Diagnostics (5 papers) and Geotechnical Engineering and Analysis (1 paper). The work is most often cited by research in Nuclear and High Energy Physics (3.5k citations), Astronomy and Astrophysics (1.6k citations), Aerospace Engineering (873 citations), Materials Chemistry (1.4k citations) and Biomedical Engineering (1.2k citations). H. St. John has collaborated with scholars based in United States, Germany and United Kingdom. Frequent co-authors include Lang L. Lao, Wayne Pfeiffer, R.D. Stambaugh, A.G. Kellman, T. S. Taylor, Richard J. Groebner, J. R. Ferron, Edward Strait, W. Howl and A. D. Turnbull. Their work appears in journals such as Nuclear Fusion, Plasma Physics and Controlled Fusion, Physical Review Letters, Fusion Science & Technology and Computer Physics Communications.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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