R. A. Hardekopf

1.3k total citations
72 papers, 933 citations indexed

About

R. A. Hardekopf is a scholar working on Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics and Radiation. According to data from OpenAlex, R. A. Hardekopf has authored 72 papers receiving a total of 933 indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Nuclear and High Energy Physics, 35 papers in Atomic and Molecular Physics, and Optics and 30 papers in Radiation. Recurrent topics in R. A. Hardekopf's work include Nuclear physics research studies (42 papers), Nuclear Physics and Applications (26 papers) and Particle accelerators and beam dynamics (15 papers). R. A. Hardekopf is often cited by papers focused on Nuclear physics research studies (42 papers), Nuclear Physics and Applications (26 papers) and Particle accelerators and beam dynamics (15 papers). R. A. Hardekopf collaborates with scholars based in United States, Switzerland and Croatia. R. A. Hardekopf's co-authors include Nelson Jarmie, Ronald E. Brown, G.G. Ohlsen, P.W. Keaton, W. Grüebler, L. R. Veeser, R. L. Walter, J. W. Sunier, E.R. Flynn and R. Risler and has published in prestigious journals such as Physical Review Letters, Physics Letters B and Computer Physics Communications.

In The Last Decade

R. A. Hardekopf

72 papers receiving 886 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
R. A. Hardekopf United States	18	765	420	401	171	82	72	933
G. W. Butler United States	19	864 1.1×	322 0.8×	461 1.1×	156 0.9×	108 1.3×	32	998
H. Schmeing Canada	21	967 1.3×	346 0.8×	381 1.0×	113 0.7×	77 0.9×	53	1.1k
G. Bizard France	18	852 1.1×	294 0.7×	332 0.8×	152 0.9×	53 0.6×	72	1.0k
G.C. Neilson Canada	17	823 1.1×	320 0.8×	430 1.1×	131 0.8×	91 1.1×	75	952
C.D. Zafiratos United States	19	874 1.1×	383 0.9×	441 1.1×	113 0.7×	101 1.2×	50	1.0k
R. M. Ronningen United States	20	1.1k 1.4×	524 1.2×	504 1.3×	165 1.0×	102 1.2×	57	1.3k
H. Morgenstern Germany	18	882 1.2×	468 1.1×	451 1.1×	109 0.6×	45 0.5×	40	998
C. Perrin France	19	921 1.2×	309 0.7×	366 0.9×	165 1.0×	69 0.8×	34	1.0k
J. D. Seagrave United States	15	571 0.7×	439 1.0×	403 1.0×	127 0.7×	84 1.0×	27	854
F.P. Brady United States	21	721 0.9×	319 0.8×	726 1.8×	269 1.6×	86 1.0×	82	1.1k

Countries citing papers authored by R. A. Hardekopf

Since Specialization

Citations

This map shows the geographic impact of R. A. Hardekopf'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 R. A. Hardekopf with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites R. A. Hardekopf more than expected).

Fields of papers citing papers by R. A. Hardekopf

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by R. A. Hardekopf. 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 R. A. Hardekopf. The network helps show where R. A. Hardekopf may publish in the future.

Co-authorship network of co-authors of R. A. Hardekopf

This figure shows the co-authorship network connecting the top 25 collaborators of R. A. Hardekopf. A scholar is included among the top collaborators of R. A. Hardekopf based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with R. A. Hardekopf. R. A. Hardekopf is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hardekopf, R. A.. (2000). Beam loss and activation at LANSCE and SNS. Prepared for. 62–69. 6 indexed citations

Brown, Ronald E., G.G. Ohlsen, R. A. Hardekopf, et al.. (1987). Study of the reaction at 16 MeV around collinear configurations. Nuclear Physics A. 475(3). 407–421. 5 indexed citations

Daehnick, W. W., Ronald E. Brown, E.R. Flynn, R. A. Hardekopf, & J. C. Peng. (1986). Analyzing powers forPb207(t→,p)209Pb at 17 MeV as evidence for multistep contributions. Physical Review C. 34(3). 815–824. 1 indexed citations

Drosg, M., et al.. (1986). Double differential neutron emission cross sections of¹⁰B AND¹¹B at 6, 10 and 14 MeV and of⁶Li,⁷Li and¹²C at 14 MeV. Radiation Effects. 92(1-4). 145–149. 3 indexed citations

Jarmie, Nelson, Ronald E. Brown, & R. A. Hardekopf. (1984). Fusion-energy reactionH2(t,α)nfromEt=12.5 to 117keV. Physical Review C. 29(6). 2031–2046. 55 indexed citations

Brown, Ronald E., Nelson Jarmie, & R. A. Hardekopf. (1983). Nuclear Reactions among the Hydrogen Isotopes at Low Energies. IEEE Transactions on Nuclear Science. 30(2). 1164–1168. 3 indexed citations

Šlaus, I., J.M. Lambert, P.A. Treado, et al.. (1983). The 4He(, αp)n reaction at 12 and 17 MeV. Nuclear Physics A. 397(2). 205–224. 9 indexed citations

Cecil, F. E., et al.. (1983). Low-energyLi7(t, α)He6cross sections. Physical Review C. 27(1). 6–10. 4 indexed citations

Ohlsen, G.G., et al.. (1981). The description of polarization analyzing powers for three-body breakup reactions. Nuclear Instruments and Methods. 179(2). 283–294. 21 indexed citations

10.

Grüebler, W., et al.. (1979). Scattering from 12 to 17 MeV. Nuclear Physics A. 331(1). 61–74. 12 indexed citations

11.

König, V., W. Grüebler, R. A. Hardekopf, et al.. (1979). Investigation of charge symmetry violation in the mirror reactions 2H(d, p)3H and 2H(d, n)3He. Nuclear Physics A. 331(1). 1–15. 29 indexed citations

12.

Schmelzbach, P.A., R. A. Hardekopf, Richard F. Haglund, & G.G. Ohlsen. (1978). Scattering of polarized tritons byBe9andC12. Physical Review C. 17(1). 16–23. 14 indexed citations

13.

Haglund, Richard F., G.G. Ohlsen, R. A. Hardekopf, Nelson Jarmie, & Ronald E. Brown. (1977). Analyzing-power measurements for theHe3(t→,d)He4reaction. Physical Review C. 16(6). 2151–2158. 3 indexed citations

14.

Flynn, E.R., R. A. Hardekopf, J.D. Sherman, J. W. Sunier, & J.P. Coffin. (1977). Spectroscopy of proton hole states in the thallium nuclei with the ( reaction. Nuclear Physics A. 279(3). 394–412. 56 indexed citations

15.

Flynn, E.R., R. A. Hardekopf, J.D. Sherman, J. W. Sunier, & J.P. Coffin. (1976). Total Spin Measurement of Proton Hole States by the (t, α) Reaction. Physical Review Letters. 36(2). 79–81. 14 indexed citations

16.

Hardekopf, R. A., D.D. Armstrong, & P.W. Keaton. (1974). A proton polarimeter for polarization transfer experiments. Nuclear Instruments and Methods. 114(1). 17–20. 10 indexed citations

17.

Clegg, T.B., D.D. Armstrong, R. A. Hardekopf, & P.W. Keaton. (1973). Polarization Transfer in theH2(d,p)H3Reaction atθ=0∘. Physical Review C. 8(3). 922–928. 4 indexed citations

18.

Hardekopf, R. A., D.D. Armstrong, W. Grüebler, P.W. Keaton, & U. Meyer‐Berkhout. (1973). Polarization Transfer in theHe3(d,p)He4Reaction. Physical Review C. 8(5). 1629–1638. 4 indexed citations

19.

Keaton, P.W., et al.. (1972). New Method for Determining Polarization Standards in Nuclear Reactions. Physical Review Letters. 29(13). 880–883. 21 indexed citations

20.

Hardekopf, R. A., et al.. (1972). Four-nucleon studies. Nuclear Physics A. 191(3). 460–467. 7 indexed citations

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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