R. A. Hardekopf

1.3k citations

72 papers · 933 indexed · h-index 18

Nuclear and High Energy Physics top 2%
Atomic and Molecular Physics, and Optics top 5%
Radiation top 2%
Aerospace Engineering top 10%
Spectroscopy top 10%

Co-authors: Nelson Jarmie Ronald E. Brown G.G. Ohlsen P.W. Keaton W. Grüebler L. R. Veeser R. L. Walter J. W. Sunier
Topics: Nuclear physics research studies (42 papers)Nuclear Physics and Applications (26 papers)Particle accelerators and beam dynamics (15 papers)
Cited by: Nuclear and High Energy Physics Radiation Atomic and Molecular Physics, and Optics
Journals: Physical Review Letters Physics Letters B Computer Physics Communications
Partner nations: United States Switzerland United Kingdom

In The Last Decade

R. A. Hardekopf

72 papers receiving 886 citations

Peers

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

#	Work	Indexed citations
1	Beam loss and activation at LANSCE and SNS 2000 ·Prepared for ·R. A. Hardekopf	6
2	Study of the reaction at 16 MeV around collinear configurations 1987 ·Nuclear Physics A ·(unknown),Ronald E. Brown,G.G. Ohlsen,R. A. Hardekopf,Nelson Jarmie,J.M. Lambert,P.A. Treado,I. Šlaus,P. Schwändt,P. Doleschall	5
3	Double differential neutron emission cross sections of¹⁰B AND¹¹B at 6, 10 and 14 MeV and of⁶Li,⁷Li and¹²C at 14 MeV 1986 ·Radiation Effects ·M. Drosg,P.W. Lisowski,R. A. Hardekopf,D. M. Drake,(unknown)	3
4	Analyzing powers forPb207(t→,p)209Pb at 17 MeV as evidence for multistep contributions 1986 ·Physical Review C ·W. W. Daehnick,Ronald E. Brown,E.R. Flynn,R. A. Hardekopf,J. C. Peng	1
5	Low-energyLi7(t, α)He6cross sections 1983 ·Physical Review C ·F. E. Cecil,(unknown),Nelson Jarmie,R. A. Hardekopf,R. Martı́nez	4
6	Nuclear Reactions among the Hydrogen Isotopes at Low Energies 1983 ·IEEE Transactions on Nuclear Science ·Ronald E. Brown,Nelson Jarmie,R. A. Hardekopf	3
7	The 4He(, αp)n reaction at 12 and 17 MeV 1983 ·Nuclear Physics A ·I. Šlaus,J.M. Lambert,P.A. Treado,(unknown),Ronald E. Brown,R. A. Hardekopf,Nelson Jarmie,Y. Koike,W. Grüebler	9
8	The description of polarization analyzing powers for three-body breakup reactions 1981 ·Nuclear Instruments and Methods ·G.G. Ohlsen,Ronald E. Brown,(unknown),R. A. Hardekopf	21
9	Scattering from 12 to 17 MeV 1979 ·Nuclear Physics A ·W. Grüebler,Ronald E. Brown,(unknown),R. A. Hardekopf,Nelson Jarmie,G.G. Ohlsen	12
10	Total Angular Momentum Determinations from the (tpol,d) Reaction onNi58,64 1979 ·Physical Review Letters ·E.R. Flynn,Ronald E. Brown,(unknown),D. L. Hanson,R. A. Hardekopf	7
11	Scattering of polarized tritons byBe9andC12 1978 ·Physical Review C ·P.A. Schmelzbach,R. A. Hardekopf,Richard F. Haglund,G.G. Ohlsen	14
12	Analyzing-power measurements for theHe3(t→,d)He4reaction 1977 ·Physical Review C ·Richard F. Haglund,G.G. Ohlsen,R. A. Hardekopf,Nelson Jarmie,Ronald E. Brown	3
13	Spectroscopy of proton hole states in the thallium nuclei with the ( reaction 1977 ·Nuclear Physics A ·E.R. Flynn,R. A. Hardekopf,J.D. Sherman,J. W. Sunier,J.P. Coffin	56
14	Total Spin Measurement of Proton Hole States by the (t, α) Reaction 1976 ·Physical Review Letters ·E.R. Flynn,R. A. Hardekopf,J.D. Sherman,J. W. Sunier,J.P. Coffin	14
15	A proton polarimeter for polarization transfer experiments 1974 ·Nuclear Instruments and Methods ·R. A. Hardekopf,D.D. Armstrong,P.W. Keaton	10
16	Angular distribution of polarization transfer in 2H(, )3H 1974 ·Nuclear Physics A ·W. Grüebler,R. A. Hardekopf,D.D. Armstrong,P.W. Keaton	3
17	Polarization Transfer in theH2(d,p)H3Reaction atθ=0∘ 1973 ·Physical Review C ·T.B. Clegg,D.D. Armstrong,R. A. Hardekopf,P.W. Keaton	4
18	Polarization Transfer in theHe3(d,p)He4Reaction 1973 ·Physical Review C ·R. A. Hardekopf,D.D. Armstrong,W. Grüebler,P.W. Keaton,U. Meyer‐Berkhout	4
19	New Method for Determining Polarization Standards in Nuclear Reactions 1972 ·Physical Review Letters ·P.W. Keaton,D.D. Armstrong,R. A. Hardekopf,(unknown),(unknown)	21
20	Four-nucleon studies 1972 ·Nuclear Physics A ·R. A. Hardekopf,(unknown),P.W. Lisowski,R. L. Walter,J.M. Joyce	7

About R. A. Hardekopf

R. A. Hardekopf is a scholar working on Nuclear and High Energy Physics, Radiation and Atomic and Molecular Physics, and Optics, having authored 72 papers that have together received 933 indexed citations. Recurring topics across this work include Nuclear physics research studies (42 papers), Nuclear Physics and Applications (26 papers) and Particle accelerators and beam dynamics (15 papers). The work is most often cited by research in Nuclear and High Energy Physics (765 citations), Radiation (401 citations) and Atomic and Molecular Physics, and Optics (420 citations). R. A. Hardekopf has collaborated with scholars based in United States, Switzerland and United Kingdom. Frequent 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 V. König. Their work appears in journals such as Physical Review Letters, Physics Letters B 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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