K. Ohasa

527 total citations
23 papers, 220 citations indexed

About

K. Ohasa is a scholar working on Nuclear and High Energy Physics, Astronomy and Astrophysics and Electrical and Electronic Engineering. According to data from OpenAlex, K. Ohasa has authored 23 papers receiving a total of 220 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Nuclear and High Energy Physics, 9 papers in Astronomy and Astrophysics and 9 papers in Electrical and Electronic Engineering. Recurrent topics in K. Ohasa's work include Magnetic confinement fusion research (18 papers), Plasma Diagnostics and Applications (9 papers) and Ionosphere and magnetosphere dynamics (8 papers). K. Ohasa is often cited by papers focused on Magnetic confinement fusion research (18 papers), Plasma Diagnostics and Applications (9 papers) and Ionosphere and magnetosphere dynamics (8 papers). K. Ohasa collaborates with scholars based in Japan, Czechia and United States. K. Ohasa's co-authors include K. Odajima, Y. Shimomura, S. Sengoku, M. Nagami, S. Kasai, Masahiro Wakatani, S. Yamamoto, Katsuhiko Miyamoto, K. Matsuoka and Hajime Maeda and has published in prestigious journals such as Physical Review Letters, Japanese Journal of Applied Physics and Journal of the Physical Society of Japan.

In The Last Decade

K. Ohasa

21 papers receiving 174 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
K. Ohasa Japan	9	186	82	80	80	51	23	220
H. Brinkschulte Germany	9	157 0.8×	60 0.7×	76 0.9×	102 1.3×	60 1.2×	22	220
K. Odajima Japan	11	208 1.1×	112 1.4×	61 0.8×	109 1.4×	50 1.0×	29	259
W. Zuzak Canada	8	192 1.0×	111 1.4×	51 0.6×	49 0.6×	52 1.0×	23	228
K. Höthker Germany	12	262 1.4×	125 1.5×	59 0.7×	132 1.6×	79 1.5×	17	320
H. Euringer Germany	7	176 0.9×	88 1.1×	90 1.1×	43 0.5×	42 0.8×	13	204
S. Hirokura Japan	8	143 0.8×	87 1.1×	40 0.5×	47 0.6×	46 0.9×	16	175
C. Nieswand Switzerland	9	201 1.1×	63 0.8×	36 0.5×	45 0.6×	99 1.9×	20	232
A. Kaye United Kingdom	10	255 1.4×	86 1.0×	137 1.7×	98 1.2×	58 1.1×	34	310
A. Nicolai Germany	8	199 1.1×	70 0.9×	50 0.6×	39 0.5×	102 2.0×	30	219
M. Chatelier France	12	282 1.5×	186 2.3×	71 0.9×	43 0.5×	63 1.2×	26	323

Countries citing papers authored by K. Ohasa

Since Specialization

Citations

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

Fields of papers citing papers by K. Ohasa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Ohasa

This figure shows the co-authorship network connecting the top 25 collaborators of K. Ohasa. A scholar is included among the top collaborators of K. Ohasa 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 K. Ohasa. K. Ohasa 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

Kojima, A., N. Umeda, M. Hanada, et al.. (2015). Progress in long-pulse production of powerful negative ion beams for JT-60SA and ITER. Nuclear Fusion. 55(6). 63006–63006. 42 indexed citations

Hoshino, K., T. Yamamoto, H. Tamai, et al.. (2006). Heating, Current Drive, and Advanced Plasma Control in JFT-2M. Fusion Science & Technology. 49(2). 139–167. 2 indexed citations

Shoji, T., Keisuke Nagashima, H. Tamai, et al.. (1995). Divertor plasma modification by divertor biasing and edge ergodization in JFT-2M. Journal of Nuclear Materials. 220-222. 357–360. 7 indexed citations

Matsumoto, H., H. Kimura, S. Sengoku, et al.. (1982). Particle confinement during high-power neutral-beam injection in JFT-2 tokamak. Nuclear Fusion. 22(6). 840–843. 4 indexed citations

Odajima, K., Hidehiko Kimura, Satoru Iizuka, et al.. (1980). High-efficiency ICRF heating in DIVA. Nuclear Fusion. 20(10). 1330–1334. 11 indexed citations

Iizuka, Satoru, K. Odajima, H. Kimura, et al.. (1980). Propagation and Absorption of the Fast Magnetosonic Wave in the Ion-Cyclotron Range of Frequencies in the DIVA Tokamak. Physical Review Letters. 45(15). 1256–1260. 8 indexed citations

Sengoku, S., Tatsuma D. Matsuda, Hiroshi Matsumoto, et al.. (1980). Carbon wall experiment in diva. Journal of Nuclear Materials. 93-94. 178–184. 20 indexed citations

Matsumoto, Hiroshi, K. Ohasa, K. Odajima, et al.. (1980). Observation of Non-Circular Cross-Section for q=1 Magnetic Surface in Very Low-q Discharge (q_a\lesssim2) of DIVA Tokamak. Japanese Journal of Applied Physics. 19(7). L413–L413. 2 indexed citations

Shimomura, Y., et al.. (1980). Role of Runaway Electrons in the Formation of Arcing on the Electrically Isolated Target in Tokamak. Journal of the Physical Society of Japan. 48(3). 1053–1054. 4 indexed citations

10.

Maeda, Hideaki, S. Sengoku, H. Kimura, et al.. (1979). Experimental study of magnetic divertor in DIVA. 1. 377–385. 1 indexed citations

11.

Ohasa, K., et al.. (1979). Origin of Metal Impurities in DIVA. Journal of the Physical Society of Japan. 46(5). 1635–1640. 5 indexed citations

12.

Nagami, M., Y. Shimomura, Hajime Maeda, et al.. (1978). Impurity shielding and sweeping-out by an axisymmetric divertor in DIVA. Nuclear Fusion. 18(10). 1347–1355. 11 indexed citations

13.

Nagami, M., Hideaki Maeda, S. Kasai, et al.. (1978). Divertor experiment for impurity control in DIVA. Journal of Nuclear Materials. 76-77. 521–527. 14 indexed citations

14.

Ohasa, K., Hajime Maeda, Satoshi Yamamoto, et al.. (1978). Ion sputtering, evaporation and arcing in DIVA. Journal of Nuclear Materials. 76-77. 489–489. 14 indexed citations

15.

Ohasa, K., Hajime Maeda, Satoshi Yamamoto, et al.. (1978). Ion sputtering, evaporation and arcing in DIVA. Nuclear Fusion. 18(6). 872–875. 22 indexed citations

16.

Ohasa, K., et al.. (1977). Helically Symmetric Equilibrium of Current-Carrying Finite Beta Plasma. Japanese Journal of Applied Physics. 16(4). 617–621. 3 indexed citations

17.

Matsuoka, K., Katsuhiko Miyamoto, K. Ohasa, & Masahiro Wakatani. (1977). Magnetohydrodynamic instabilities in a current-carrying stellarator. Nuclear Fusion. 17(6). 1123–1131. 23 indexed citations

18.

Ohkubo, Κ., et al.. (1977). Wave Propagation to Lower Hybrid Resonance in a Magnetic Field with Shear. Journal of the Physical Society of Japan. 43(2). 642–647. 8 indexed citations

19.

Ohasa, K. & Kenrō Miyamoto. (1977). Rotational Transform Angle of the Stellarator Field with Twisted Coils. Japanese Journal of Applied Physics. 16(5). 813–816.

20.

Ohasa, K., et al.. (1976). Electron Temperature Measurement in JIPP-Ib Stellarator by the Method of Time History. Japanese Journal of Applied Physics. 15(12). 2403–2408. 4 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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