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Fingerprint Dive into the research topics where Takumi Onchi is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 6 Similar Profiles
low aspect ratio Physics & Astronomy
Plasmas Engineering & Materials Science
Cyclotrons Engineering & Materials Science
configurations Physics & Astronomy
injection Physics & Astronomy
cyclotrons Physics & Astronomy
Aspect ratio Engineering & Materials Science
plasma turbulence Physics & Astronomy

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Research Output 2005 2019

  • 251 Citations
  • 10 h-Index
  • 56 Article
  • 8 Conference contribution
  • 1 Paper
  • 1 Comment/debate

28-GHz ECHCD system with beam focusing launcher on the QUEST spherical tokamak

Idei, H., Onchi, T., Kariya, T., Tsujimura, T. I., Kubo, S., Kobayashi, S., Sakaguchi, M., Imai, T., Hasegawa, M., Nakamura, K., Mishra, K., Fukuyama, M., Yunoki, M., Kojima, S., Watanabe, O., Kuroda, K., Hanada, K., Nagashima, Y., Ejiri, A., Matsumoto, N. & 7 others, Ono, M., Higashijima, A., Nagata, T., Shimabukoro, S., Takase, Y., Fukuyama, A. & Murakami, S., Jan 1 2019, In : Fusion Engineering and Design.

Research output: Contribution to journalArticle

Electron cyclotron resonance
Test facilities
1 Citation (Scopus)

Development of high power gyrotrons for advanced fusion devices

Kariya, T., Minami, R., Imai, T., Okada, M., Motoyoshi, F., Numakura, T., Nakashima, Y., Idei, H., Onchi, T., Hanada, K., Shimozuma, T., Yoshimura, Y., Takahashi, H., Kubo, S., Oda, Y., Ikeda, R., Sakamoto, K., Ono, M., Nagasaki, K., Eguchi, T. & 1 others, Mitsunaka, Y., Apr 26 2019, In : Nuclear Fusion. 59, 6, 066009.

Research output: Contribution to journalArticle

cyclotron resonance devices
radio frequencies
continuous radiation
1 Citation (Scopus)

Estimation of fuel particle balance in steady state operation with hydrogen barrier model

Hanada, K., Yoshida, N., Takagi, I., Hirata, T., Hatayama, A., Okamoto, K., Oya, Y., Shikama, T., Wang, Z., Long, H., Huang, C., Oya, M., Idei, H., Nagashima, Y., Onchi, T., Hasegawa, M., Nakamura, K., Zushi, H., Kuroda, K., Kawasaki, S. & 10 others, Higashijima, A., Nagata, T., Shimabukuro, S., Takase, Y., Murakami, S., Gao, X., Liu, H., Qian, J., Raman, R. & Ono, M., May 2019, In : Nuclear Materials and Energy. 19, p. 544-549 6 p.

Research output: Contribution to journalArticle

Open Access
Carrier concentration

HFS injection of X-mode for EBW conversion in QUEST

Elserafy, H., Hanada, K., Kuroda, K., Idei, H., Yoneda, R., Huang, C., Kojima, S., Hasegawa, M., Nagashima, Y., Onchi, T., Ikezoe, R., Higashijima, A., Nagata, T., Kawasaki, S., Shimabukuro, S., Bertelli, N. & Ono, M., Jan 1 2019, In : Plasma and Fusion Research. 14, 1, 1205038.

Research output: Contribution to journalArticle

plasma heating
plasma currents

High voltage electrical system of 8.56 GHz CW klystron for electron cyclotron heating on QUEST spherical tokamak

Onchi, T., Idei, H., Nakamura, K., Nagata, T., Kawasaki, S., Ashida, R., Fukuyama, M., Hasegawa, M., Ikezoe, R., Higashijima, A., Kuroda, K., Nagashima, Y. & Hanada, K., Sep 1 2019, In : Fusion Engineering and Design. 146, p. 2567-2570 4 p.

Research output: Contribution to journalArticle

Insulated gate bipolar transistors (IGBT)
Electric potential