H. Knudsen

3.4k citations

91 papers · 2.6k indexed · h-index 30

Impact in

Radiation top 0.5%
- X-ray Spectroscopy and Fluorescence Analysis
Atomic and Molecular Physics, and Optics top 1%
- Atomic and Molecular Physics
- Advanced Chemical Physics Studies

Papers in

Radiation 49
- X-ray Spectroscopy and Fluorescence Analysis 38
- Nuclear Physics and Applications 9
Atomic and Molecular Physics, and Optics 75
- Atomic and Molecular Physics 73

Co-authors: P. Hvelplund E. Uggerhøj H. K. Haugen S. Möller E. Morenzoni U. Mikkelsen M. Charlton J. F. Reading
Journals: Journal of Physics B Atomic Molecular and Optical Physics (21 papers)Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (13 papers)Physical Review Letters (10 papers)Physical Review A (4 papers)Physics Letters B (3 papers)
Partner nations: Denmark United States Switzerland

In The Last Decade

H. Knudsen

91 papers receiving 2.5k citations

Peers

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

The 25 scholars most cited alongside H. Knudsen, 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. Knudsen Line = papers co-authored together H. Knudsen links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	The relative biological effectiveness of antiprotons Radiotherapy and Oncology ·M. H. Holzscheiter, Jan Alsner, Niels Bassler, Rebecca Boll, M. Caccia, H. Knudsen, C.J. Maggiore, J. Petersen, Stefan Sellner, Shimon Meretik, Brita Singers Sørensen, Jens Overgaard	2016	5
2	Target Structure Induced Suppression of the Ionization Cross Section for Very Low Energy Antiproton-Hydrogen Collisions Physical Review Letters ·H. Knudsen, H. A. Torii, M. Charlton, Y. Enomoto, Ionuţ Georgescu, 進大西, Petra Ophoff, Yasuyuki Kanai, Helle Kristiansen, N. Kuroda, 진희언, R. W. McCullough, K. Tőkési, E. Uggerhøj, Y. Yamazaki	2010	19
3	The antiproton depth–dose curve in water Physics in Medicine and Biology ·Niels Bassler, M. H. Holzscheiter, Oliver Jäkel, H. Knudsen, Sandra Vezmar Kovačević	2008	21
4	Antiproton radiotherapy Radiotherapy and Oncology ·Niels Bassler, Jan Alsner, Fikri Ardiansyah Efendi, John J. DeMarco, M. Doser, N V Bolotnikova, Oliver Hartley, Keisuke S. Iwamoto, Oliver Jäkel, H. Knudsen, Sandra Vezmar Kovačević, S. Möller, Jens Overgaard, J. Petersen, Timothy D. Solberg, Brita Singers Sørensen, Sanja Vranješ‐Đurić, Bradly G. Wouters, M. H. Holzscheiter	2008	24
5	Ionization of Helium and Argon by Very Slow Antiproton Impact Physical Review Letters ·H. Knudsen, Helle Kristiansen, Francisco Stélío de Sousa, E. Uggerhøj, 郑培林, S.P. Møller, 進大西, R. W. McCullough, M. Charlton, N. Kuroda, Y. Nagata, H. Torii, Y. Yamazaki, H. Imao, H. H. Andersen, K. Tőkési	2008	49
6	Stopping Power in Insulators and Metals without Charge Exchange Physical Review Letters ·S. Möller, Edward B. Breitshwerdt, 郑培林, H. Knudsen, E. Uggerhøj, Hans Henrik Andersen	2004	45
7	Ionization of argon and krypton by positron impact Journal of Physics B Atomic Molecular and Optical Physics ·H. Bluhme, H. Knudsen, J. P. Merrison, 许忠勇	1999	20
8	Non-dissociative and dissociative ionization of nitrogen molecules by positron impact Journal of Physics B Atomic Molecular and Optical Physics ·H. Bluhme, 竜一手嶋, Finn M. Jacobsen, H. Knudsen, J. P. Merrison, Kirsten Paludan, M. R. Poulsen	1998	26
9	Direct measurements of the stopping power for antiprotons of light and heavy targets Physical Review A ·S. Möller, E. Uggerhøj, H. Bluhme, H. Knudsen, U. Mikkelsen, Kirsten Paludan, E. Morenzoni	1997	51
10	Ionization of rare gases by particle - antiparticle impact Journal of Physics B Atomic Molecular and Optical Physics ·Kirsten Paludan, G. Laricchia, Paul Ashley, Toshiki Shiozaki, J. Moxom, H. Bluhme, H. Knudsen, U. Mikkelsen, S. Möller, E. Uggerhøj, E. Morenzoni	1997	33
11	Designing an RFQ ring trap for antiproton confinement and trapping and laser cooling Mg+ ions Hyperfine Interactions ·Xu Feng, 川杉まい, J. S. Hangst, H. Knudsen, M. H. Holzscheiter	1996	2
12	Non-dissociative and dissociative ionization of N₂, CO, CO₂, and CH₄by impact of 50-6000 keV protons and antiprotons Journal of Physics B Atomic Molecular and Optical Physics ·H. Knudsen, U. Mikkelsen, Kirsten Paludan, K. Kirsebom, S. Möller, E. Uggerhøj, J Slevin, M. Charlton, E. Morenzoni	1995	40
13	Measurements of Electron Spectra in the Forward Direction in Slow-Antiproton Carbon-Foil Collisions Journal of the Physical Society of Japan ·Y. Yamazaki, Kenro Kuroki, K. Komaki, Lars H. Andersen, E. Horsdal-Pedersen, P. Hvelplund, H. Knudsen, S. Möller, Feng Lu-jie, S Michael	1990	10
14	Non-dissociative and dissociative ionisation of H₂by 50-2000 keV antiprotons Journal of Physics B Atomic Molecular and Optical Physics ·L. H. Andersen, P. Hvelplund, H. Knudsen, S. Möller, Jens Olaf Pepke Pedersen, 吴立盘, E. Uggerhøj, K. Elsener, E. Morenzoni	1990	28
15	Antihydrogen by positronium-antiproton collisons Hyperfine Interactions ·B. I. Deutch, L. H. Andersen, P. Hvelplund, Finn M. Jacobsen, H. Knudsen, M. H. Holzscheiter, M. Charlton, G. Laricchia	1989	23
16	Antiparticle-atom collisions Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ·H. Knudsen	1989	7
17	Positron and electron impact double ionisation of helium Journal of Physics B Atomic Molecular and Optical Physics ·M. Charlton, Lars H. Andersen, G. Mihailov, B. I. Deutch, P. Hvelplund, Finn M. Jacobsen, H. Knudsen, G. Laricchia, M. R. Poulsen, 成文鈴木	1988	55
18	A measurement of absolute cross sections for multielectron processes in slow collisions between highly charged ions and atoms Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ·H. Cederquist, G. Astner, A. Bárány, H. Danared, Andrea Johnson, L. Liljeby, K.-G. Rensfelt, S. Huldt, P. Hvelplund, H. Knudsen	1987	5
19	Simultaneous capture and ionisation for fast ion impact on helium Journal of Physics B Atomic and Molecular Physics ·H. Knudsen, Lars H. Andersen, P. Hvelplund, J Sorensen, D. Ćirić	1987	20
20	Energy-gain spectroscopy studies of state-selective electron capture for multiply charged Ar recoil ions: Comparison with the extended classical barrier model Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms ·P. Hvelplund, Lars H. Andersen, A. Bárány, H. Cederquist, Jan Heinemeier, H. Knudsen, K. B. MacAdam, 雅一金子, J Sorensen	1985	31

About H. Knudsen

H. Knudsen is a scholar working on Radiation, Atomic and Molecular Physics, and Optics, Structural Biology, Surfaces, Coatings and Films and Spectroscopy, having authored 91 papers that have together received 2.6k indexed citations. Recurring topics across this work include Atomic and Molecular Physics (73 papers), X-ray Spectroscopy and Fluorescence Analysis (38 papers), Ion-surface interactions and analysis (23 papers), Mass Spectrometry Techniques and Applications (19 papers), Muon and positron interactions and applications (17 papers), Radiation Therapy and Dosimetry (11 papers), Crystallography and Radiation Phenomena (10 papers) and Nuclear Physics and Applications (9 papers). The work is most often cited by research in Radiation (1.1k citations), Atomic and Molecular Physics, and Optics (2.3k citations), Nuclear and High Energy Physics (461 citations), Spectroscopy (552 citations) and Surfaces, Coatings and Films (205 citations). H. Knudsen has collaborated with scholars based in Denmark, United States and Switzerland. Frequent co-authors include P. Hvelplund, E. Uggerhøj, H. K. Haugen, S. Möller, E. Morenzoni, U. Mikkelsen, M. Charlton, J. F. Reading, M. R. Poulsen and Lars H. Andersen. Their work appears in journals such as Journal of Physics B Atomic Molecular and Optical Physics, Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms, Physical Review Letters, Physical Review A and Physics Letters B.

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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