H. Koivisto

2.4k total citations
145 papers, 1.5k citations indexed

About

H. Koivisto is a scholar working on Aerospace Engineering, Electrical and Electronic Engineering and Nuclear and High Energy Physics. According to data from OpenAlex, H. Koivisto has authored 145 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 133 papers in Aerospace Engineering, 115 papers in Electrical and Electronic Engineering and 70 papers in Nuclear and High Energy Physics. Recurrent topics in H. Koivisto's work include Particle accelerators and beam dynamics (131 papers), Plasma Diagnostics and Applications (92 papers) and Magnetic confinement fusion research (62 papers). H. Koivisto is often cited by papers focused on Particle accelerators and beam dynamics (131 papers), Plasma Diagnostics and Applications (92 papers) and Magnetic confinement fusion research (62 papers). H. Koivisto collaborates with scholars based in Finland, Russia and France. H. Koivisto's co-authors include O. Tarvainen, T. Kalvas, I. V. Izotov, В. А. Скалыга, V. Toivanen, J. Ärje, J. Komppula, R. Kronholm, P. Suominen and T. Ropponen and has published in prestigious journals such as Journal of Applied Physics, Carbon and Journal of Physics D Applied Physics.

In The Last Decade

H. Koivisto

141 papers receiving 1.4k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
H. Koivisto 1.1k 1.1k 889 340 158 145 1.5k
O. Tarvainen 1.2k 1.1× 1.1k 1.0× 865 1.0× 302 0.9× 78 0.5× 161 1.4k
P. McNeely 1.5k 1.4× 1.3k 1.2× 1.5k 1.7× 442 1.3× 112 0.7× 73 2.0k
L. Celona 1.2k 1.1× 1.1k 1.0× 881 1.0× 481 1.4× 123 0.8× 177 1.7k
T. Kalvas 861 0.8× 770 0.7× 626 0.7× 216 0.6× 87 0.6× 105 1.0k
E. Speth 1.6k 1.5× 1.3k 1.2× 1.6k 1.8× 398 1.2× 80 0.5× 72 2.0k
L. Grisham 690 0.6× 468 0.4× 851 1.0× 262 0.8× 109 0.7× 113 1.2k
G. Melin 739 0.7× 654 0.6× 551 0.6× 244 0.7× 51 0.3× 53 939
H.P.L. de Esch 1.2k 1.0× 849 0.8× 1.2k 1.3× 183 0.5× 61 0.4× 66 1.5k
P. A. Bagryansky 437 0.4× 559 0.5× 1.2k 1.3× 276 0.8× 194 1.2× 95 1.4k
I. V. Izotov 739 0.7× 670 0.6× 609 0.7× 374 1.1× 109 0.7× 113 1.0k

Countries citing papers authored by H. Koivisto

Since Specialization
Citations

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

Fields of papers citing papers by H. Koivisto

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of H. Koivisto. A scholar is included among the top collaborators of H. Koivisto 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. Koivisto. H. Koivisto 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.
2.
Kalvas, T., et al.. (2022). First results of a new quadrupole minimum-B permanent magnet electron cyclotron resonance ion source. Plasma Sources Science and Technology. 31(12). 12LT02–12LT02. 6 indexed citations
3.
Скалыга, В. А., I. V. Izotov, A. G. Shalashov, et al.. (2021). Controlled turbulence regime of electron cyclotron resonance ion source for improved multicharged ion performance. Journal of Physics D Applied Physics. 54(38). 385201–385201. 11 indexed citations
4.
Koivisto, H., O. Tarvainen, T. Thuillier, et al.. (2021). Correlation of bremsstrahlung and energy distribution of escaping electrons to study the dynamics of magnetically confined plasma. Plasma Physics and Controlled Fusion. 63(9). 95010–95010. 8 indexed citations
5.
Izotov, I. V., A. G. Shalashov, В. А. Скалыга, et al.. (2021). The role of radio frequency scattering in high-energy electron losses from minimum- B ECR ion source. Plasma Physics and Controlled Fusion. 63(4). 45007–45007. 12 indexed citations
6.
Izotov, I. V., O. Tarvainen, В. А. Скалыга, et al.. (2020). Measurements of the energy distribution of electrons lost from the minimum B-field—The effect of instabilities and two-frequency heating. ePubs (Science and Technology Facilities Council, Research Councils UK). 12 indexed citations
7.
Tarvainen, O., R. Kronholm, Mikko Laitinen, et al.. (2020). Experimental evidence on photo-assisted O− ion production from Al2O3 cathode in cesium sputter negative ion source. Journal of Applied Physics. 128(9). 5 indexed citations
8.
Li, Jibo, V. Toivanen, O. Tarvainen, et al.. (2020). Effects of magnetic configuration on hot electrons in a minimum-B ECR plasma. Plasma Physics and Controlled Fusion. 62(9). 95015–95015. 8 indexed citations
9.
Komppula, J., O. Tarvainen, T. Kalvas, et al.. (2019). A study of VUV emission and the extracted electron-ion ratio in hydrogen and deuterium plasmas of a filament-driven H−/D− ion source. Physics of Plasmas. 26(7). 3 indexed citations
10.
Скалыга, В. А., I. V. Izotov, D. A. Mansfeld, et al.. (2018). Microwave emission from ECR plasmas under conditions of two-frequency heating induced by kinetic instabilities. AIP conference proceedings. 2011. 20015–20015. 3 indexed citations
11.
Tarvainen, O., R. Kronholm, T. Kalvas, et al.. (2016). The effect of cavity tuning on oxygen beam currents of an A-ECR type 14 GHz electron cyclotron resonance ion source. Review of Scientific Instruments. 87(9). 93301–93301. 7 indexed citations
12.
Izotov, I. V., T. Kalvas, H. Koivisto, et al.. (2015). Cyclotron instability in the afterglow mode of minimum-B ECRIS. Review of Scientific Instruments. 87(2). 02A729–02A729. 5 indexed citations
13.
Kalvas, T., et al.. (2015). Photoelectron emission from metal surfaces induced by radiation emitted by a 14 GHz electron cyclotron resonance ion source. Review of Scientific Instruments. 87(2). 02A506–02A506. 2 indexed citations
14.
Kalvas, T., et al.. (2015). Power efficiency improvements with the radio frequency H− ion source. Review of Scientific Instruments. 87(2). 02B102–02B102. 6 indexed citations
15.
Koivisto, H., T. Kalvas, J. Komppula, et al.. (2015). Ion source research and development at University of Jyväskylä: Studies of different plasma processes and towards the higher beam intensities. Review of Scientific Instruments. 87(2). 02A725–02A725. 1 indexed citations
16.
Kalvas, T., et al.. (2015). A CW radiofrequency ion source for production of negative hydrogen ion beams for cyclotrons. AIP conference proceedings. 1655. 30015–30015. 11 indexed citations
17.
Kleshch, Victor I., Anton S. Orekhov, T. Kalvas, et al.. (2014). Nano-graphite cold cathodes for electric solar wind sail. Carbon. 81. 132–136. 14 indexed citations
18.
Virtanen, A., et al.. (2004). High Penetration Heavy Ions at the RADEF Test Site. ESA Special Publication. 536. 499. 13 indexed citations
19.
Virtanen, A., et al.. (2003). High penetration heavy tons at the RADEF test site. 499–502. 13 indexed citations
20.
Koivisto, H., E. Liukkonen, P. Suominen, et al.. (2003). The modifications of the JYFL 6.4 GHz ECR ion source. Nukleonika. 81–84. 2 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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