S. Okamura

4.6k total citations
183 papers, 1.9k citations indexed

About

S. Okamura is a scholar working on Nuclear and High Energy Physics, Astronomy and Astrophysics and Aerospace Engineering. According to data from OpenAlex, S. Okamura has authored 183 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 158 papers in Nuclear and High Energy Physics, 103 papers in Astronomy and Astrophysics and 44 papers in Aerospace Engineering. Recurrent topics in S. Okamura's work include Magnetic confinement fusion research (155 papers), Ionosphere and magnetosphere dynamics (91 papers) and Solar and Space Plasma Dynamics (48 papers). S. Okamura is often cited by papers focused on Magnetic confinement fusion research (155 papers), Ionosphere and magnetosphere dynamics (91 papers) and Solar and Space Plasma Dynamics (48 papers). S. Okamura collaborates with scholars based in Japan, United States and China. S. Okamura's co-authors include H. Yamada, M. Isobe, K. Matsuoka, A. Shimizu, U. Stroth, F. Sano, K. Ida, C. Suzuki, S. Murakami and H. Iguchi and has published in prestigious journals such as Physical Review Letters, Journal of Geophysical Research Atmospheres and Geochimica et Cosmochimica Acta.

In The Last Decade

S. Okamura

169 papers receiving 1.8k citations

Author Peers

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

Author Last Decade Papers Cites
S. Okamura 1.6k 1.0k 420 371 267 183 1.9k
D. R. Mikkelsen 1.8k 1.1× 1.1k 1.0× 603 1.4× 411 1.1× 381 1.4× 85 2.0k
T. Munsat 1.3k 0.8× 964 0.9× 265 0.6× 295 0.8× 224 0.8× 92 1.6k
L. D. Pearlstein 1.7k 1.1× 965 0.9× 409 1.0× 292 0.8× 329 1.2× 71 2.0k
H. Weisen 2.0k 1.3× 990 0.9× 826 2.0× 390 1.1× 393 1.5× 126 2.2k
D. D. Ryutov 1.4k 0.9× 846 0.8× 351 0.8× 235 0.6× 196 0.7× 108 1.9k
P. G. Carolan 1.8k 1.1× 941 0.9× 509 1.2× 428 1.2× 385 1.4× 73 1.9k
A. Janos 1.8k 1.1× 1.1k 1.1× 525 1.3× 253 0.7× 285 1.1× 63 1.9k
K. McGuire 2.0k 1.3× 1.3k 1.2× 483 1.1× 298 0.8× 313 1.2× 67 2.1k
Y. Takase 2.2k 1.4× 1.2k 1.2× 490 1.2× 581 1.6× 392 1.5× 202 2.3k
A. Krämer-Flecken 2.0k 1.2× 1.0k 1.0× 380 0.9× 274 0.7× 242 0.9× 116 2.1k

Countries citing papers authored by S. Okamura

Since Specialization
Citations

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

Fields of papers citing papers by S. Okamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Okamura

This figure shows the co-authorship network connecting the top 25 collaborators of S. Okamura. A scholar is included among the top collaborators of S. Okamura 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 S. Okamura. S. Okamura 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.
Shimizu, A., K. Ogawa, H. Takahashi, et al.. (2025). Engineering design and manufacturing of the modular coil system for the quasi-axisymmetric stellarator CFQS-T. Fusion Engineering and Design. 212. 114853–114853.
2.
3.
Fu, Ting‐Ying, Xianqu Wang, Xu Su, et al.. (2024). Suppression of equilibrium magnetic islands by density profile effect in quasi-axisymmetric stellarator plasmas. Plasma Physics and Controlled Fusion. 66(6). 65026–65026.
4.
Xu, Yuhong, M. Isobe, A. Shimizu, et al.. (2023). Effect of discreteness and misalignment on magnetic field and charged particle confinement in CFQS quasi-axisymmetric stellarator. Plasma Physics and Controlled Fusion. 65(3). 35020–35020. 2 indexed citations
5.
Huang, Jie, M. Nakata, Yuhong Xu, et al.. (2022). Identification of electrostatic microinstability maps in quasi-axisymmetric stellarator. Physics of Plasmas. 29(5). 4 indexed citations
6.
Liu, Haifeng, Yuhong Xu, A. Shimizu, et al.. (2022). Effects of bootstrap current on magnetic configuration in Chinese first quasi-axisymmetric stellarator. Nuclear Fusion. 63(2). 26018–26018. 2 indexed citations
7.
Wang, Xianqu, Yuhong Xu, A. Shimizu, et al.. (2021). The three-dimensional equilibrium with magnetic islands and MHD instabilities in the CFQS quasi-axisymmetric stellarator. Nuclear Fusion. 61(3). 36021–36021. 15 indexed citations
8.
Liu, Haifeng, Yuhong Xu, A. Shimizu, et al.. (2020). Optimization of finite-sized modular coils for advanced stellarators. Plasma Physics and Controlled Fusion. 62(12). 125004–125004. 4 indexed citations
9.
Pucci, Fulvia, M. Velli, Chen Shi, et al.. (2020). Onset of fast magnetic reconnection and particle energization in laboratory and space plasmas. Journal of Plasma Physics. 86(6). 11 indexed citations
10.
Liu, Haifeng, A. Shimizu, Yuhong Xu, et al.. (2020). Configuration characteristics of the Chinese First Quasi-axisymmetric Stellarator. Nuclear Fusion. 61(1). 16014–16014. 14 indexed citations
11.
Okamura, S., Haifeng Liu, A. Shimizu, et al.. (2020). Island divertor configuration design for a quasi-axisymmetric stellarator CFQS. Journal of Plasma Physics. 86(4). 5 indexed citations
12.
Ogawa, K., R. Seki, S. Murakami, et al.. (2019). Feasibility Study of Neutral Beam Injection on Chinese First Quasi-Axisymmetric Stellarator (CFQS). Plasma and Fusion Research. 14(0). 3402067–3402067. 6 indexed citations
13.
Pucci, Fulvia, Shunsuke Usami, Hantao Ji, et al.. (2018). Energy transfer and electron energization in collisionless magnetic reconnection for different guide-field intensities. Physics of Plasmas. 25(12). 22 indexed citations
14.
Fujisawa, A., S. Ohshima, Hiroyuki Nakano, et al.. (2008). Oscillatory Zonal Flows Driven by Interaction between Energetic Ions and Fishbone-like Instability in CHS. National Institute for Fusion Science Repository (National Institute for Fusion Science). 1 indexed citations
15.
Gerhard, Ortwin, M. Arnaboldi, K. C. Freeman, et al.. (2007). The kinematics of intracluster planetary nebulae and the on-going subcluster merger in the Coma cluster core. Astronomy and Astrophysics. 468(3). 815–822. 43 indexed citations
16.
Nagaoka, K., A. Shimizu, K. Ida, et al.. (2006). Z dependence of neutral beam driven current in the Large Helical Device and the Compact Helical System. Journal of the Korean Physical Society. 49. 1 indexed citations
17.
Yokoyama, M., K. Itoh, S. Okamura, K. Matsuoka, & S.‐I. Itoh. (2001). Maximum-Jcapability in a quasiaxisymmetric stellarator. Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 64(1). 15401–15401. 1 indexed citations
18.
Matsuoka, K., et al.. (1997). Post-CHS project. Plasma Physics Reports. 23(7). 542–546. 10 indexed citations
19.
Iguchi, H., K. Ida, H. Yamada, et al.. (1993). The Effect of Magnetic Field Configuration on Particle Pinch Velocity in Compact Helical System (CHS). National Institute for Fusion Science Repository (National Institute for Fusion Science).
20.
Saito, Toshiharu, et al.. (1991). Mosaic CCD Method: A New Method for Observation of Dynamics of Cometary Magnetospheres. 765. 182.

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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