H. Knudsen

550 total citations
22 papers, 441 citations indexed

About

H. Knudsen is a scholar working on Radiation, Computational Mechanics and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, H. Knudsen has authored 22 papers receiving a total of 441 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Radiation, 13 papers in Computational Mechanics and 10 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in H. Knudsen's work include Ion-surface interactions and analysis (13 papers), X-ray Spectroscopy and Fluorescence Analysis (12 papers) and Atomic and Molecular Physics (10 papers). H. Knudsen is often cited by papers focused on Ion-surface interactions and analysis (13 papers), X-ray Spectroscopy and Fluorescence Analysis (12 papers) and Atomic and Molecular Physics (10 papers). H. Knudsen collaborates with scholars based in Denmark, United Kingdom and Australia. H. Knudsen's co-authors include H. H. Andersen, P. Hvelplund, Flemming Besenbacher, Jan Heinemeier, F. Folkmann, T. Andersen, L. H. Andersen, H. Kjeldsen, E. Uggerhøj and John B. West and has published in prestigious journals such as Physical Review Letters, Journal of Applied Physics and The Astrophysical Journal.

In The Last Decade

H. Knudsen

22 papers receiving 421 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H. Knudsen Denmark 13 278 194 142 106 69 22 441
H.H. Mikkelsen Denmark 11 312 1.1× 99 0.5× 131 0.9× 90 0.8× 45 0.7× 16 353
J. A. Ray United States 13 308 1.1× 121 0.6× 76 0.5× 142 1.3× 75 1.1× 28 464
M. Yamanouchi Japan 9 259 0.9× 183 0.9× 145 1.0× 75 0.7× 36 0.5× 27 418
T. Tonuma Japan 16 349 1.3× 334 1.7× 216 1.5× 186 1.8× 28 0.4× 54 565
H. R. Moustafa Netherlands 7 425 1.5× 207 1.1× 64 0.5× 209 2.0× 61 0.9× 10 530
G. Ryding United States 12 348 1.3× 123 0.6× 91 0.6× 129 1.2× 35 0.5× 26 446
M. Tosaki Japan 13 347 1.2× 184 0.9× 113 0.8× 91 0.9× 71 1.0× 50 511
H.H. Bukow Germany 12 277 1.0× 86 0.4× 145 1.0× 115 1.1× 88 1.3× 49 469
Kengo Moribayashi Japan 13 325 1.2× 189 1.0× 112 0.8× 85 0.8× 63 0.9× 62 484
S. Lencinas Germany 12 432 1.6× 199 1.0× 174 1.2× 158 1.5× 88 1.3× 26 509

Countries citing papers authored by H. Knudsen

Since Specialization
Citations

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

Fields of papers citing papers by H. Knudsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by H. Knudsen. 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. Knudsen. The network helps show where H. Knudsen may publish in the future.

Co-authorship network of co-authors of H. Knudsen

This figure shows the co-authorship network connecting the top 25 collaborators of H. Knudsen. A scholar is included among the top collaborators of H. Knudsen 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 H. Knudsen. H. Knudsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Andersen, K.K., J. Esberg, H. Knudsen, et al.. (2012). Direct Measurement of the Formation Length of Photons. Physical Review Letters. 108(7). 71802–71802. 8 indexed citations
2.
Drewsen, Michael, E. Uggerhøj, & H. Knudsen. (2006). Non-Neutral Plasma Physics VI. 862. 13 indexed citations
3.
Møller, S. P., et al.. (2002). Antiproton Stopping at Low Energies: Confirmation of Velocity-Proportional Stopping Power. Physical Review Letters. 88(19). 193201–193201. 54 indexed citations
4.
Kjeldsen, H., et al.. (2002). Absolute, State‐selective Measurements of the Photoionization Cross Sections of N + and O + Ions. The Astrophysical Journal Supplement Series. 138(1). 219–227. 27 indexed citations
5.
West, John B., T. Andersen, R. L. Brooks, et al.. (2001). Photoionization of singly and doubly charged aluminum ions in the extreme ultraviolet region: Absolute cross sections and resonance structures. Physical Review A. 63(5). 33 indexed citations
6.
Kjeldsen, H., F. Folkmann, J E Hansen, et al.. (1999). Measurement of the Absolute Photoionization Cross Section of C[TSUP]+[/TSUP] near Threshold. The Astrophysical Journal. 524(2). L143–L146. 45 indexed citations
7.
Paludan, Kirsten, H. Knudsen, U. Mikkelsen, et al.. (1996). Ionization in collisions between 30–1000 keV antiprotons and atomic hydrogen. Canadian Journal of Physics. 74(7-8). 490–495. 2 indexed citations
8.
Andersen, L. H., et al.. (1989). State-selective dielectronic-recombination measurements for He-like oxygen ions in an electron cooler. Physical Review Letters. 62(23). 2656–2659. 63 indexed citations
9.
Besenbacher, Flemming, Jan Heinemeier, P. Hvelplund, & H. Knudsen. (1978). Influence of spatial correlation between target atoms on the scattering of energetic ions: Multiple scattering in molecular gases. Physical review. A, General physics. 18(6). 2470–2481. 3 indexed citations
10.
Andersen, H. H., et al.. (1978). An improved method for measuring relative stopping powers of light ions in solids. Nuclear Instruments and Methods. 149(1-3). 137–142. 14 indexed citations
11.
Andersen, H. H., et al.. (1978). Degradation of discontinuous gold films under MeV heavy-ion bombardment. Journal of Applied Physics. 49(11). 5638–5647. 32 indexed citations
12.
Knudsen, H., et al.. (1978). Measurements of differential single-scattering cross sections of heavy ions at MeV energies on solid targets. Journal of Physics B Atomic and Molecular Physics. 11(3). 455–464. 4 indexed citations
13.
Andersen, H. H., Flemming Besenbacher, & H. Knudsen. (1978). Stopping power and straggling of 65–500 keV lithium ions in H2, He, CO2, N2, O2, Ne, Ar, Kr and Xe. Nuclear Instruments and Methods. 149(1-3). 121–127. 16 indexed citations
14.
Besenbacher, Flemming, Jan Heinemeier, P. Hvelplund, & H. Knudsen. (1977). Energy-loss straggling for protons and helium ions. Physics Letters A. 61(1). 75–77. 16 indexed citations
15.
Knudsen, H. & H. H. Andersen. (1976). Multiple scattering of MeV gold and carbon ions in carbon and gold targets. Nuclear Instruments and Methods. 136(1). 199–201. 9 indexed citations
16.
Sidenius, G., N. Andersen, Peter Sigmund, et al.. (1976). Effect of molecular geometry on multiple scattering of heavy energetic particles. Nuclear Instruments and Methods. 134(3). 597–599. 11 indexed citations
17.
Knudsen, H., et al.. (1976). The ion-atom differential single-scattering cross section in the region of weak screening measured on solid targets. Radiation Effects. 28(3-4). 147–155. 9 indexed citations
18.
Andersen, N., Peter Sigmund, Jan Heinemeier, et al.. (1976). Lateral distributions of multiply scattered ions: sensitivity to atomic interaction, Z1-oscillations, molecular effects, double-differential distributions, and implications for surface scattering. Nuclear Instruments and Methods. 132. 703–705. 6 indexed citations
19.
Andersen, H. H. & H. Knudsen. (1974). Differential cross sections for scattering of 300-500-keVH+,He+, andLi+on selemium in the region of weak screening. Physical review. A, General physics. 10(2). 733–736. 10 indexed citations
20.
Andersen, H. H., J. B⊘ttiger, & H. Knudsen. (1972). Multiple scattering of heavy ions of keV energies transmitted through thin, polycrystalline gold foils. Radiation Effects. 13(3-4). 203–207. 20 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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