Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Kazuaki Hanada Last modified date:2021.11.22

Professor / Interdisciplinary Graduate School of Engineering Sciences. Plasma and Quantum Science and Engineering / Advanced Fusion Research Center / Research Institute for Applied Mechanics


Presentations
1. Makoto Hasegawa, Daisuke Sakurai, Aki Higashijima, Ichiro Niiya, Keiji Matsushima, Kazuaki Hanada, Hiroshi Idei, Takeshi Ido, Ryuya Ikezoe,Takumi Onchi, Kengo Kuroda , Towards Automated Gas Leak Detection through Cluster Analysis of Mass Spectrometer Data, 13th Technical Meeting on Plasma Control Systems,Data Management and Remote Experiments in Fusion Research, 2021.07.
2. Q. Yue, K. Handa, M. Oya, H. Idei, T. Onchi, K. Kuroda, N. Yoshida, R. Ikezoe, M. Fukuyama, M. Hasegawa, S. Shimabukuro, S. Kawasaki , Measurement of Dynamic Retention with Fast Ejecting System of Targeted Sample (FESTA)?)
, 15th International Workshop on Hydrogen Isotopes in Fusion Reactor Materials, 2021.05.
3. T. Onchi , H. Idei , M. Fukuyama , R. Kato , M. Kudo , R. Takeda , Y. Zhang , A. Kidani , S. Kojima , T. Kariya , A. Ejiri , Y. Osawa , Y. Peng , O. Watanabe , M. Hasegawa , K. Nakamura , K. Kuroda , R. Ikezoe , T. Ido , K. Hanada , N. Bertelli , M. Ono , and A. Fukuyama , Plasma current start-up through injection of harmonic electron cyclotron waves on the QUEST spherical tokamak
, Korea-Japan Workshop on Physics and Technology of Heating and Current Drive, 2021.02.
4. @K. Hanada,@N. Yoshida, @M. Hasegawa, @M. Oya, @Y. Oya, @I. Takagi, A. Hatayama, T.Shikama, H. Idei, Y. Nagashima, R. Ikezoe, T. Onchi, K. Kuroda, S. Kawasaki, A. Higashijima, T. Nagata, S. Shimabukuro, K. Nakamura, S. Murakami, Y.Takase, X. Gao, H. Liu, J. Qian, Overview of Recent Progress on Steady State Operation of All-metal Plasma Facing Wall Device,QUEST, the 24th International Conference on Plasma Surface Interaction in Fusion Devices (PSI-24), 2021.01.
5. Qilin YUE, Kazuaki HANADA, Makoto OYA, Shogo MATSUO, Shinichiro KOJIMA, Hiroshi IDEI, Takumi ONCHI, Kengoh KURODA, Naoaki YOSHIDA, Ryuya IKEZOE, Yukai LIU, Makoto HASEGAWA, Shun SHIMABUKURO, Aki HIGASHIJIMA, Takahiro NAGATA, Shoji KAWASAKI , Research on Dynamic Retention Measurement using Fast Ejecting System of Targeted Sample (FESTA)in QUEST
, the 24th International Conference on Plasma Surface Interaction in Fusion Devices (PSI-24), 2021.01.
6. Kuzmin Arseniy,蓮尾昌裕,四竈泰一,藤井恵介,門 信一郎,小林政弘,花田和明 , Development of an in-situ calibration method for permeation probes
, 第37回 プラズマ・核融合学会 年会, 2020.12.
7. HANADA.Kazuaki, EC-assisted plasma start-up in Japanese STs, 25th IOS-TG Meeting, 2020.10.
8. Kazuaki Hanada, Hiroshi Idei, Yoshihiko Nagashima, Ryuya Ikezoe, Makoto Hasegawa, Takumi Onchi, Makoto Oya, Kengo Kuroda, Shoji Kawasaki, Aki Higashijima, Takahiro Nagata, Shun Shimabukuro, Shinichiro Kojima, Hatem O ELSerafy, Naoaki Yoshida, Kazuo Nakamura, Atsushi Fukuyama, Sadayoshi Murakami, Yuichi Takase, Akira Ejiri,Roger Raman, and Masayuki Ono, Overview of recent progress on the QUEST experiments, 20th International Spherical Torus Workshop (ISTW2019), 2019.10.
9. 花田和明, Plan for contribution of plasma start-up from Japanese STs, ITPA Integrated Operation Scenarios Topical Group Meeting, 2019.04.
10. Hatem Elserafy, Kazuaki Hanada, Hiroshi Idei, Makoto Hasegawa, Kengoh Kuroda, Takumi Onchi, Ryuya Ikezoe, Shinichiro Kojima, Ryota Yoneda, Huang Canbin, Miyu Yunoki, Masaharu Fukuyama, Nicola Bertelli, Masayuki Ono, Comparison between low field side and high field side injections for EBW conversion in QUEST, 第22回若手科学者によるプラズマ研究会(口頭発表有り), 2019.03.
11. Hatem Elserafy,Kazuaki Hanada,Ryota Yoneda,Hiroshi Idei,Makoto Hasegawa,Takumi Onchi,Kengoh Kuroda,Aki Higashijima,Takahiro Nagata,Nicola Bertelli,Masayuki Ono, Design of high field side injection of X mode for EBW conversion experiment in QUEST, 第35回プラ核年会, 2018.12.
12. H. Idei, A. Higashijima, A. Ejiri, A. Fukuyama, G. Taylor, K. Hanada, K. Nakamura, K. Nagata, K. Kuroda, K. Mishra, M. Hasegawa, M Fukuyama, M. Ono, M. Yunoki, N. Matsumoto, N. Bertelli, O. Watanabe, R. Yoneda, S. Murakami, S. Kobayashi, S. Kubo, S. Kojima, T. Onchi, T. Tsujimura, T. Imai, T. Kariya, Y. Nagashima, Y. Takase, Fully Non-inductive 2nd Harmonic Electron Cyclotron Current Ramp-up with Focused Polarized Beams in the QUEST Spherical Tokamak, 27th IAEA Fusion Energy Conference (FEC2018), 2018.11.
13. T. Onchi, H. Idei, M. Hasegawa, K. Kuroda, R. Ikezoe, K. Hanada, A. Ejiri, T. Kariya, S. Kubo, T. Tsujimura, A. Fukuyama, Second harmonic EC plasma ramp-up through production of energetic electrons on the QUEST spherical tokamak, 60th Annual Meeting of the APS Division of Plasma Physics, 2018.11.
14. X. Gao, L. Zeng, H. Liu, Guoquang Li, Gonshun li, H. Cai, X. Wu, K. Hanada, Y. Gao, T. Ming, T. Zhang, Y. Yang, Z. Liu, M. Wu, K. Li, X. Zhu, B. Lyu, Y. Jie, Q. Zang, H. Li, Y. Liang, X. Gong, J. Li, Progress of high Progress of high βN plasma operation on EAST tokamak, 60th Annual Meeting of the APS Division of Plasma Physics, 2018.11.
15. M. Ono, N. Bertelli, H. Idei, K. Hanada, Solenoid-free Start-up Modeling of 2nd Harmonic Electron Cyclotron Heating and Current Drive, 60th Annual Meeting of the APS Division of Plasma Physics, 2018.11.
16. K. Hanada, N. Yoshida, M. Hasegawa, A. Hatayama, K. Okamoto, I. Takagi, Y. Oya, M.Miyamoto, M. Oya, T. Shikama, A. Kuzmin, Z. X. Wang, H. Long, S. Kojim,H. Idei, Y. Nagashima, K. Nakamura, O. Watanabe, T. Onchi, H. Watanabe, K. Tokunaga, A. Higashijima, S. Kawasaki, H. Nakashima, T. Nagata, S. Shimabukuro, Y. Takase, S. Murakami, X. Gao, H. Liu, J. Qian, R. Raman, and M. Ono, Fuel particle balance for steady state operation on all-metal fusion experimental device, QUEST., 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018), 2018.11.
17. H. Idei, T. Onchi, T. Kariya, T.I. Tsujimura, S. Kubo, S. Kobayashi, M. Fukuyama, M. Yunoki, S. Kojima, M. Hasegawa, K. Nakamura, A. Ejiri, N. Matsumoto, K. Mishra, T. Imai, O. Watanabe, K. Kuroda, K. Hanada, A. Higashijima, K. Nagata, S. Shimabukuro, R. Yoneda, G. Taylor, N. Bertelli, M. Ono, Y. Takase, A. Fukuyama, and S. Murakami, Fully Non-inductive Electron Cyclotron Current Ramp-up with Focused 28GHz Beams in the QUEST Spherical Tokamak, 2nd Asia-Pacific Conference on Plasma Physics (AAPPS-DPP2018), 2018.11.
18. Hatem Elserafy, Kazuaki Hanada, Ryota Yoneda, Hiroshi Idei, Makoto Hasegawa, Takumi Onchi, Kengoh Kuroda, Aki Higashijima, Takahiro Nagata, Nicola Bertelli, Masayuki Ono, Design of high field side injection of X-mode for EBW conversion experiment in QUEST, 27th International Toki Conference, 2018.11.
19. C. Huang, K. Kuroda, R. Raman, K. Hanada, B. A. Nelson, M. Ono, RESULT OF TRANSIENT COAXIAL HELICITY INJECION EXPERIMENTS ON QUEST, 27th International Toki Conference, 2018.11.
20. J. Menard, B. Lloyd, B. Lipschultz, D. Kingham, F. Alladio, H. Wilson, J. Harrison, K. Hanada, M. Ono, M. Reinke, M. Gryaznevich, N. Bakharev, R. Fonck, R. Majeski, V. Gusev, Y. Ono, Y. Hwang, Y. Takase, Z. Gao, Fusion Energy Development Applications Utilizing the Spherical Tokamak and Associated Research Needs and Tools, 27th IAEA Fusion Energy Conference (FEC2018), 2018.10.
21. T. Kariya, H. Igami, H. Takahashi, H. Idei, K. Hanada, K. Nagasaki, K. Sakamoto, K. Kajiwara, K. Takahashi, M. Okada, M. Ono, R. Ikeda, R. Minami, S. Kobayashi, S. Ito, S. Kubo, S. Moriyama, T. Shimozuma, T. Kobayashi, T. Eguchi, T. Onchi, T. Numakura, T. Tsujimura, T. Imai, Y. Oda, Y. Yoshimura, Y. Endo, Y. Mirsunaka, Y. Kawakami, Y. Nakashima, Development of High Power Gyrotrons for Advanced Fusion Devices and DEMO, 27th IAEA Fusion Energy Conference (FEC2018), 2018.10.
22. K. Hanada, N. Yoshida, M. Hasegawa, A. Hatayama, K.Okamoto, I. Takagi, T. Hirata, Y.Oya, M.Miyamoto, M. Oya, T. Shikama, A. Kuzmin, Z. X. Wang , H. Long,H. Idei, Y. Nagashima, K.Nakamura, O. Watanabe, T. Onchi, H. Watanabe, K. okunaga, A. Higashijima, S.Kawasaki, H.Nakashima, T.Nagata, S.Shimabukuro, Y.Takase, S. Murakami, X. Gao, H. Liu, J.Qian, R. Raman, and M. Ono., Particle balance investigation with the combination of rate equations of hydrogen state and hydrogen barrier model in long duration discharges on all-metal PFW QUEST, 27th IAEA Fusion Energy Conference (FEC2018), 2018.10.
23. H. Idei, T. Onchi, T. Kariya, T. Tsujimura, S. Kubo, S. Kobayashi, T. Imai, M. Hasegawa, K. Nakamura, K. Mishra, M. Fukuyama, M. Yunoki, S. Kojima, O. Watanabe, K. Kuroda, K. Hanada, Y. Nagashima, A. Ejiri, N. Matsumoto, M. Ono, A. Higashijima, T. Nagata, S. Shimabukuro, Y. Takase, A. Fukuyama, S. Murakami, System of 28GHz ECHCD with beam focusing launcher on the QUEST spherical tokamak, 30th Symposium on Fusion Technology (SOFT2018), 2018.09.
24. T. Onchi, H. Idei, K. Nakamura, T. Nagata, S. Kawasaki, A. Higashijima, K. Kuroda, M. Hasegawa, Y. Nagashima, K. Hanada, High voltage electrical system of 8.56 GHz CW klystron for electron cyclotron heating on QUEST spherical tokamak, 30th Symposium on Fusion Technology (SOFT2018), 2018.09.
25. Yasuhisa Oya, Atsuko Sano, Yurina Sato, Moeko Nakata, Qilai Zhou, Akihiro Togari, Naoaki Yoshida, Kazuaki Hanada, Effect of carbon impurity reduction on Hydrogen isotope retention
in QUEST high temperature wall, 30th Symposium on Fusion Technology (SOFT2018), 2018.09.
26. Shinichiro Kojima,Kazuaki Hanada,Hiroshi Idei, Takumi Onchi, Kazuo Nakamura,Makoto Hasegawa,Yoshihiko Nagashima,Ryuya Ikezoe, Kengo Kuroda,Ryota Yoneda, Masayuki Ono, Naoki Matsumoto,Yuya Kawamata, Akira Ejiri, Influence by electron-neutral particle collision in plasma current drive using 28 GHz 2nd harmonics EC wave on QUEST, 9th Japan-Korea Seminar on Advanced Diagnostics for Steady-State Fusion Plasmas, 2018.08.
27. Y. K. Liu, K. Hanada, X. Gao,Y. W. Yu, L. Yang, H. Q. Liu, Q. Zhuang Y. L. Li, J. P. Qian, Y.X.Jie and EAST Team, Preliminary energy balance estimation using calorimetric measurement in long-pulse
high-performance discharges with upper single null configuration on EAST, 9th Japan-Korea Seminar on Advanced Diagnostics for Steady-State Fusion Plasmas, 2018.08.
28. Shogo Matsuo, Hao Long, Kazuaki Hanada, Hiroshi Idei , Akihide Fujisawa, Yoshihiko Nagashima, Makoto Hasegawa, Takumi Onchi, Shoji Kawasaki, Aki Higashizima, Kengoh Kuroda, Takahiro Nagata, Sadayoshi Murakami, Yuichi Takase, and QUEST group, Investigation of hydrogen recycling with local partial pressure measurement in QUEST, 9th Japan-Korea Seminar on Advanced Diagnostics for Steady-State Fusion Plasmas, 2018.08.
29. T. Shikama, K. Hanada, K. Nii, A. Fujikawa, H. Zushi, T. Onchi, M. Hasegawa,N. Yoneda, S. Mori, M. Hasuo, H. Idei, K. Nakamura, Y. Nagashima, K. Kuroda, A. Higashijima, and T. Nagata, Measurement of the ion species dependence of the intrinsic edge rotation in spherical tokamak QUEST, PSI 2018, 2018.06.
30. K. Hanada, N. Yoshida, I. Takagi, T.Hirata, A. Hatayama, K. Okamoto, Y. Oya,T. Shikama, Z. Wang, H. Long, M. Oya, H. Idei, Y. Nagashima, T. Onchi, M. Hasegawa, K. Nakamura, H. Zushi, K. Kuroda, S. Kawasaki, A. Higashijima, T. Nagata,S. Shimabukuro, Y. Takase, S. Murakami, X. Gao, H. Liu, J. Qian, R. Raman, and M. Ono, Estimation of Fuel Particle balance in steady state operation with hydrogen barrier model, PSI 2018, 2018.06.
31. 日本物理学会第73回年次大会.
32. R.Yoneda, K.Hanada, H.Elserafy, N.Bertelli, M.Ono, Hifh Field Side RF Injection for Excitation of Electron Bernstein Wave, 第26回国際土岐コンファレンス(ITC26)・第11回アジアプラズマ核融合学会会議(APFA11), 2017.12.
33. Kengoh Kuroda, Roger Raman, Stephen C. Jardin,Masayuki Ono, Kazuaki Hanada, TSC simulation of transient CHI in new electrode con guration on QUEST, 第26回国際土岐コンファレンス(ITC26)・第11回アジアプラズマ核融合学会会議(APFA11), 2017.12.
34. Shinichiro Kojima,Kengo Kuroda,Takumi Onchi, Kazuaki Hanada,, DESIGN OF MULTI SOFT X-RAY MEASUREMENT SYSTEM FOR HIGH TEMPERATURE PLASMA ON QUEST, CSS-EEST19, 2017.11.
35. T.Onchi, H.Idei, M.Hasegawa, T.Nagata, K.Kuroda, K.Hanada, T.Kariya, S.Kubo, T.I.Tsujimura, S.Kobayashi, , Electron cyclotron heating/current-drive system using high power tubes for QUEST spherical tokamak, 59th Annual Meeting of the APS Division of Plasma Physics, 2017.10.
36. T. Onchi, H. Idei, K. Nakamura, M. Hasegawa, K. Yamasaki, O. Watanabe, K. Mishra, K. Kuroda, A. Kuzmin, H. Ohwada, A. Ejiri, H. Togashi, N. Matsumoto and K. Hanada , Present status of current-drive system in QUEST spherical tokamak, AAPPS-DPP2017 1st Asia-Pacific Conference on Plasma Physics, 2017.09.
37. K.Kuroda,R.Raman,K.Hanada,M.Hasegawa,T.Onchi,M.Ono,T.R.Jarboe,B.A.Nelson,M.Nagata,O.Mitarai,K.Nakamura,H.Idei,J.Rogers,S.Kawasaki,T.Nagata,A.Kuzmin,S.Kojima,O.Watanabe, A.Higashijima,Y.Takase and A.Fukuyama, Coaxial Helicity Injection experiment on QUEST, AAPPS-DPP2017 1st Asia-Pacific Conference on Plasma Physics, 2017.09.
38. M.Hasegawa,K.Hanada,N.Yoshida,A.Kuzmin,H.Zushi,K.Nakamura,A.Fujisawa,H.Idei, Yoshihiko Nagashima, Osamu Watanabe, Takumi Onchi, Kengoh Kuroda, H. Watanabe, K. Tokunaga, A.Higashijima, S. Kawasaki, and T.Nagata, Efforts toward Steady State Operation in Long Duration Discharges with the Control of Hot Wall Temperature on QUEST, AAPPS-DPP2017 1st Asia-Pacific Conference on Plasma Physics, 2017.09.
39. Hatem Elserafy, Kazuaki Hanada, Ryota Yoneda, Hiroshi Idei, Makoto Hasegawa, T. Onchi, K. Kuroda, A.Higashijima,T.Nagata, Nicola Bertelli and Masayuki Ono, Preparation of high field side injection of X-mode for EBW conversion experiment in QUEST, 19th International Spherical Torus Workshop (ISTW 2017), 2017.09.
40. K.Hanada, H.Idei, N.Yoshida, M.Hasegawa, K.Nakamura, H.Zushi1, A.Fujisawa, Y.Nagashima, T.Onchi, K.Kuroda, S.Kawasaki, A.Higashijima, T.Nagata, S.Shimabukuro, A.Fukuyama2, O.Mitarai3, Y.Takase, R.Raman, and M.Ono, Overview of recent progress on plasma current start-up and long-duration plasma maintenance in QUEST, 19th International Spherical Torus Workshop (ISTW 2017), 2017.09.
41. M.Hasegawa,K.Nakamura,K.Hanada,S.Kawasaki,H.Idei,K.Tokunaga,Y.Nagashima,T.Onchi,K.Kuroda,O.Watanabe,A.Higashijima, and T.Nagata, Modifications of Plasma Control System and Central Control System for Integrated Control of Long Plasma Sustainment on QUEST, 11th IAEA Technical Meeting on Control, Data Acquisition, and Remote Participation for Fusion Research, 2017.05.
42. Hiroaki Ohwada, Kazuaki Hanada, Naoaki Yoshida, Kazuo Nakamura, k. Yamazaki, Hao Long, Investigation of plasma wall interaction based on plasma radiation measurement in long duration discharge on QUEST, Ninth IAEA Technical Meeting (TM) on the Steady State Operation of Magnetic Fusion Devices, 2017.03.
43. S. Kojima, K. Hanada, H. Kozai, H. Owada, K. Nakamura, H. Idei, A. Fujisawa, Y. Nagashima, M. Hasegawa, T. Onchi, K. Kuroda, A. Ejiri, Investigation of Soft X-Ray radiated from  non-inductive current drive plasma with 28 GHz RF on QUEST, A3 workshop, 2017.02.
44. Santanu Banerjee, H.Zushi, N.Nishino, A.Diallo, , S.J.Zweben, Hiroshi Idei, Kazuaki Hanada, T.Stoltzfus-Dueck, Study of edge turbulence and convective intermittent transport in the spherical tokamaks QUEST and NSTX, APPC-AIP2016, 2016.12.
45. Canbin Huang, Kazuaki Hanada, Defeng Kong, Bo Lu, Liang Wang, Study of steady-state operation and ELM control in tokamak, CSS-EEST18, 2016.12.
46. Z.Wang, K. Hanada, N. Yoshida, T.Shimoji, M.Miyamoto, Y.Oya, H. Zushi, H. Idei, K. Nakamura, A. Fujisawa, Y. Nagashima, M. Hasegawa, S.Kawasaki, A.Higashijima, H.Nakashima, T.Nagata, A.Kawaguchi, T.Fujiwara, K.Araki, Investigation of the colorimetry to measure the deposition thickness on the plasma-facing wall in QUEST tokamak, CSS-EEST18, 2016.12.
47. H. Kozai, K. Hanada, A. Fujisawa, H. Idei, K. Nakamura, Y. Nagashima, M. Hasegawa, T.Nagata, S.Kawasaki, A.Higashijima, K. Kuroda, T. Onchi, Development of hard X-ray measurement for investigation of energetic electron in microwave-generated plasma on QUEST, CSS-EEST18, 2016.12.
48. Hao LONG, Kazuaki Hanada, Quantitative analysis of hydrogen outgassing from the vessel wall after long duration discharge in QUEST, CSS-EEST18, 2016.12.
49. S. Kojima, K. Hanada, H. Owada, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, M. Hasegawa, S.Kawasaki, H.Nakashima, A.Higashijima, T.Nagata, Takumi Onchi, K. Kuroda, O. Mitarai, Y. Takase, A. Fukuyama, A. Ejiri, SOFT X-RAY MESUREMENT OF 28GHz RF PLASMA ON OUEST, CSS-EEST18, 2016.12.
50. Takumi Onchi, Hiroshi Idei, Makoto Hasegawa, Hiroki Ohwada, Hideki zushi, Kazuaki Hanada, Tsuyoshi Kariya, K. Mishra, Taichi Shikama, Non-inductive current built-up by local electron cyclotron heating and current drive with a 28 GHz focused beam on QUEST, 58th Annual Meeting of the APS Division of Plasma Physics , 2016.11.
51. N. Fukumoto, K. Awajitani, K. Hanada, H. Togashi, K. Toida, M. Nagata, T. Onchi, H. Idei, M. Hasegawa, A. Fujisawa, K. Nakamura, H. Zushi, A. Kuzmin, A. Ejiri, Y. Takase, Y. Nagashima, O. Mitarai, A. Higashijima, T. Nagata, Advanced Fueling in Spherical Tokamak by Compact Toroid Injection on QUEST, FEC-26(IAEA), 2016.10.
52. Y. Takase, A. Ejiri, T. Fujita, K. Hanada, H. Idei, M. Nagata, Y. Ono, H. Tanaka, A. Fukuyama, Y. Kamada, N. Fukumoto, R. Horiuchi, Y. Nagayama, Y. Takeiri, Tsuji-Iio, Overview of Spherical Tokamak Research in Japan, FEC-26(IAEA), 2016.10.
53. H. Idei, Takumi Onchi, T. Kariya, K.Hanada, T. Imai, A. Ejiri, O. Watanabe, K.Mishra, K. Nakamura, A. Fujisawa, Nagashima Yoshihiko, Makoto Hasegawa, S. Kawasaki, T. Nakashima, A. Higashijima, H. Zushi, Y. Takase, A. Fukuyama, Non-inductive Electron Cyclotron Heating and Current Drive with Dual Frequency (8.2 /28 GHz) Waves in QUEST
, FEC-26(IAEA), 2016.10.
54. K. Hanada, N. Yoshida, T. Honda, H. Idei, Z. Wang, A. Kuzmin, I. Takagi, T. Hirata, Y. Oya, M. Miyamoto, H. Zushi, M. Hasegawa, K. Nakamura, A. Fujisawa, H. Idei, Y. Nagashima, O. Watanabe, T. Onchi, H. Watanabe, Investigation of hydrogen recycling property and its control with hot wall in long duration discharges on QUEST, FEC-26(IAEA), 2016.10.
55. T. Kariya, T. Imai, R. Minami, K. Tsumura, Y. Ebashi, H. Idei, K. Hanada, M. Ono, K. Komurasaki, T. Numakura, Y. Endo, Y. Nakashima, Development of 28/35 GHz dual-frequency gyrotron for ECH study, 11th International Conference on Open Magnetic Systems for Plasma Confinement, OS 2016, 2016.10, The high power and long pulse operation of the gyrotron as well as efficient transmission of its output are quite important for achieving improved plasma performances. A 28 GHz 1 MW gyrotron developed for GAMMA 10/PDX achieved an output power of 1.38 MW in 2015 experiment after the power supply was improved. Furthermore, a new 28/35 GHz dual-frequency gyrotron (2 MW 3 s and 0.4 MW CW) for QUEST, NSTX-U, Heliotron J and GAMMA 10/PDX has been fabricated, after the preliminary test of a double-disk sapphire window installed in the gyrotron was performed. In the first experimental test, the oscillation of the main mode was confirmed at a frequency of 28.036 GHz with a Gaussian-like beam and an output power of 1.22 MW..
56. Z.Wang, hanada kazuaki, Naoaki Yoshida, T.Shimoji, M.Miyamoto, Y.Oya, zushi hideki, H. Idei, Kazuo Nakamura, Akihide Fujisawa, Nagashima Yoshihiko, Makoto Hasegawa, S.Kawasaki, A.Higashijima, H.Nakashima, T.Nagata, A.Kawaguchi, T.Fujiwara, K.Araki, Investigation of thickness profile of plasma-induced deposition film on the plasma-facing wall in QUEST, 日本物理学会秋季大会, 2016.09.
57. Kazuo Nakamura, M.M.Alam, Yanzheng JIANG, Osamu Mitarai, K.Kurihara, Y.Kwamata, M.Sueoka, M.Takechi, Makoto Hasegawa, 德永 和俊, Kuniaki Araki, Hideki Zushi, hanada kazuaki, Akihide Fujisawa, H. Idei, Nagashima Yoshihiko, Plasma equilibrium based on RF-driven current profile without assuming nested magnetic surfaces on QUEST, 29th SYMPOSIUM ON FUSION TECHNOLOGY, 2016.09.
58. M.M.Alam, H. Idei, Makoto Hasegawa, Kazuo Nakamura, hanada kazuaki, Akihide Fujisawa, Osamu Mitarai, Nagashima Yoshihiko, 德永 和俊, K.Araki, S.Kawasaki, H.Nakashima, A.Higashijima, Development of real-time display system to monitor plasma shape toward long-time discharge on QUEST, 29th SYMPOSIUM ON FUSION TECHNOLOGY, 2016.09.
59. M.M.Alam, H. Idei, Kazuo Nakamura, Makoto Hasegawa, hanada kazuaki, Akihide Fujisawa, Nagashima Yoshihiko, Kuzmin Arseniy, H.Owada, Fan Xia, Osamu Mitarai, Evaluation of Orbit-driven Current in Electron Cyclotron Heating on QUEST, 第8回日韓計測セミナー, 2016.08.
60. T. Kariya, T. Imai, R. Minami, K. Tsumura, Y. Ebashi, H. Idei, hanada kazuaki, M. Ono, K. Komurasaki, T. Numakura, Y. Endo, Y. Nakashima, Development of 28/35 GHz dual-frequency gyrotron for ECH study, 11th International Conference on Open Magnetic Systems for Plasma, 2016.08.
61. Kazuo Nakamura, Irfan Jamil, Xiaolong Liu, Osamu Mitarai, Makoto Hasegawa, 德永 和俊, Kuniaki Araki, Hideki Zushi, hanada kazuaki, Akihide Fujisawa, H. Idei, Nagashima Yoshihiko, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima, Takahiro Nagata, Quaternion Analysis of Three-Phase Matrix Converter Switching Method, ICEE2016 Okinawa, 2016.07.
62. 花田 和明, 吉田 直亮, 本田 拓己, Z.Wang, A.Kuzumin, I. Takagi, Y. Oya, M. Miyamoto, H. Zushi, 長谷川 真, 中村 一男, Akihide Fujisawa, H. Idei, 永島 芳彦, O. Watanabe, 恩地 拓己, 渡邉 英雄, 德永 和俊, Investigation of the role of deposition layer in hydrogen recycling property on QUEST, PSI2016, 2016.05.
63. A.Kuzumin, H. Zushi, I. Takagi, S.K.Sharma, M.Kobayashi, Y.Hirooka, 恩地 拓己, Y.Oyama, 花田 和明, 吉田 直亮, 中村 一男, Akihide Fujisawa, H. Idei, 永島 芳彦, 長谷川 真, T.Mutoh, K.Mishra, H.Owada, Spatial distribution of the hydrogen retention in long duration discharges, PSI2016, 2016.05.
64. Md Mahbub Alam, Kazuo Nakamura, Makoto Hasegawa, Kazutoshi Tokunaga, Kuniaki Araki, Hideki Zushi, Kazuaki Hanada, Akihide Fujisawa, Hiroshi Idei, Yoshihiko Nagashima, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima, Fan Xia, Osamu Mitarai, Current density calculation from particle orbit in RF-driven divertor plasma on QUEST, 26th IEEE Symposium on Fusion Engineering, SOFE 2015, 2016.05, We investigate and calculate particle orbits and the effect of particle orbits on plasma current density for nonrelativistic resonance condition in the present RF-driven divertor plasma on QUEST. We surveyed particle orbits for different values of parallel refractive index, particle initial positions and pitch angles on fundamental and second harmonic resonance conditions. We observed that for fundamental harmonic resonance condition when particle orbits are plotted on the poloidal cross-section for positive values of parallel refractive index, these orbits are started from the resonance surface and produced their orbits around the LCFS (Large Closed Flux Surface). These orbits carry positive current. When particle orbits are plotted for negative values of parallel refractive index, these orbits are started from resonance surface, but remained at the inside of the LCFS. These orbits carry negative current that reduced the overall plasma current. For second harmonic resonance condition when particle orbits are plotted on the poloidal cross-section most of the orbits remained in inside the LCFS and carry positive current. When we consider the value of parallel refractive index-0.4 and +0.4 some particle orbits arrived at the limiter and become lost particles. On the other hand, when we consider particle initial positions 0.16 m or more vertically far from the mid plane some banana orbits are produced. These banana orbits make the current density profile maximum at low field side region. From this calculation we got a hollow current density profile with current density peak at the low field side region outside of the LCFS. From this calculation we can infer that parabolic current density profile is possible, if we set the resonance surface outside of the magnetic axis by increasing the toroidal magnetic field coil current and make the plasma position inward by increasing vertical field coil current..
65. K.Mishra, H. Idei, Takumi Onchi, hanada kazuaki, A Lens-less Imaging System for Measurements pf Plasma Thermal Emission, the 9th Asia-Pacific International Symposium on the basics and Applications of Plasma Technology (APSPT-9) and the 28th Symposium on Plasma Science for Materials(SPSM-28), 2015.12.
66. R.Yoneda, hanada kazuaki, zushi hideki, Kazuo Nakamura, Akihide Fujisawa, H. Idei, Naoaki Yoshida, Nagashima Yoshihiko, Makoto Hasegawa, H.Nakashima, S.Kawasaki, A.Higashijima, T.Nagata, O.Mitarai, A.Fukuyama, Y.Takase, Effect of Magnetic Structure on RF-induced Breakdown in QUEST, Japan-Korea Workshop on "Physics and Technology of Heating and Current Drive" (日韓加熱・電流ワークショップ), 2015.12.
67. Takumi Onchi, hideki zushi, Y.Oyama, K. Mishra, hanada kazuaki, Hiroshi Idei, Makoto Hasegawa, Aleksandrovich Arseniy Kuzmin, Kazuo Nakamura, Akihide Fujisawa, Nagashima Yoshihiko, K.Nagaoka, Modification of far-SOL flow by substantial gas injection in the inboard poloidal field null configuration on QUEST, 57th Annual Meeting of the APS Division of Plasma Physics , 2015.11.
68. R.Raman, T.R.Jarboe, B.A. Nelson, D. Mueller, S.C. Jardin, F. Ebrahimi, T. Brown, S.P. Gerhardt, J.E. Menard, M. Ono, hanada kazuaki, Coaxial Helicity Injection and Disruption Mitigation Studies in Support of NSTX-U, ST-FNSF, and ITER, The 18th International Spherical Torus Workshop (ISTW-2015), 2015.11.
69. hanada kazuaki, H. Idei, Naoaki Yoshida, zushi hideki, Kazuo Nakamura, Akihide Fujisawa, Nagashima Yoshihiko, Makoto Hasegawa, 渡邉 理, Takumi Onchi, Aleksandrovich Arseniy Kuzmin, H. Watanabe, A.Higashijima, S.Kawasaki, H.Nakashima, T.Nagata, T.Kariya, T.Imai, A.Ejiri, Recent progress on non-inductive current drive and particle balance control towards steady-state operation on QUEST, The 18th International Spherical Torus Workshop (ISTW-2015), 2015.11.
70. Z.Wang, hanada kazuaki, Naoaki Yoshida, T.Shimoji, M.Miyamoto, zushi hideki, H. Idei, Kazuo Nakamura, Akihide Fujisawa, Nagashima Yoshihiko, Makoto Hasegawa, S.Kawasaki, A.Higashijima, H.Nakashima, T.Nagata, A.Kawaguchi, T.Fujiwara, K.Araki, O.Mitarai, The investigation of the colorimetry to measure the deposition thickness on the plasma-facing wall in QUEST, The 18th International Spherical Torus Workshop (ISTW-2015), 2015.11.
71. R.Yoneda, hanada kazuaki, zushi hideki, Kazuo Nakamura, Akihide Fujisawa, H. Idei, Naoaki Yoshida, Nagashima Yoshihiko, Makoto Hasegawa, H.Nakashima, S.Kawasaki, A.Higashijima, T.Nagata, O.Mitarai, A.Fukuyama, Y.Takase, Particle-loss Control for Making RF-induced Breakdown in QUEST, The 18th International Spherical Torus Workshop (ISTW-2015), 2015.11.
72. M.M.Alam, Kazuo Nakamura, Makoto Hasegawa, F. Xia, O. Mitarai, 德永 和俊, K. Araki, zushi hideki, hanada kazuaki, Akihide Fujisawa, H. Idei, Nagashima Yoshihiko, S. Kawasaki, H. Nakashima, A. Higashijima, T. Nagata, Real-Time Display System of the Equilibrium Reconstruction for Long Time Discharge in QUEST, 25th International Toki Conference (ITC25), 2015.11.
73. K.Mishra, H. Idei, Y.Hayashi, Takumi Onchi, zushi hideki, hanada kazuaki, Development of a Novel Passive Imaging System for Measurement of Plasma Thermal Emission, WCSET 2015 4th World Conference on Applied Sciences, Engineering and Technology, 2015.10.
74. K.Mishra, H. Idei, M.K.Yamamoto, Akihide Fujisawa, Nagashima Yoshihiko, M.Hamasaki, Y.Hayashi, Takumi Onchi, hanada kazuaki, zushi hideki, Multiple Wall-Reflection Effect in Adaptive-array Differential-phase Reflectometry on QUEST, 17th International Symposium on Laser-Aided Plasma Diagnostics (LAPD2015), 2015.09.
75. H. Idei, K.Mishra, M.K.Yamamoto, Akihide Fujisawa, Nagashima Yoshihiko, Y.Hayashi, M.Hamasaki, Takumi Onchi, hanada kazuaki, zushi hideki, Adaptive-array Analysis in Electron Cyclotron Emission Diagnostics, 17th International Symposium on Laser-Aided Plasma Diagnostics (LAPD2015), 2015.09.
76. zushi hideki, Aleksandrovich Arseniy Kuzmin, I.Takagi, M.Kobayashi, Makoto Hasegawa, hanada kazuaki, Akihide Fujisawa, H. Idei, Nagashima Yoshihiko, Kazuo Nakamura, Takumi Onchi, A.Fukuyama, Y.Takase, T.Mutoh, Particle circulation control and non-stationary evolution of pressure response function in vacuum chamber, 日本物理学会2015年秋季大会, 2015.09.
77. Kazuo Nakamura, M.M.Alam, Y. Jiang, O. Mitarai, K. Kurihara, Y. Kawamata, M. Sueoka, M. Takechi, Makoto Hasegawa, 德永 和俊, K. Araki, zushi hideki, hanada kazuaki, Akihide Fujisawa, H. Idei, Nagashima Yoshihiko, Analysis of Plasma Equilibrium Based on Orbit-Driven Current Density Profile in Steady-State Plasma on QUEST, 12th International Symposium on Fusion Nuclear Technology, 2015.09.
78. M.M.Alam, Kazuo Nakamura, F. Xia, O. Mitarai, Makoto Hasegawa, 德永 和俊, K. Araki, zushi hideki, hanada kazuaki, Akihide Fujisawa, H. Idei, Nagashima Yoshihiko, Comparison of Current Density Profiles Based on Particle Orbit-Driven Current in Steady-State Plasma on QUEST, 12th International Symposium on Fusion Nuclear Technology, 2015.09.
79. O. Mitarai, Kazuo Nakamura, Makoto Hasegawa, Takumi Onchi, H. Idei, Akihide Fujisawa, hanada kazuaki, zushi hideki, Y. Jiang, Comparative studies of inner and outer divertor discharges and a fueling study in QUEST, 12th International Symposium on Fusion Nuclear Technology, 2015.09.
80. Aleksandrovich Arseniy Kuzmin, zushi hideki, I.Takagi, hanada kazuaki, Y.Oyama, S.K.Sharma, A.Rusinov, Y.Hirooka, H.Zhou, M.Kobayashi, M.Sasamoto, N.Yoshida, Kazuo Nakamura, Akihide Fujisawa, K.Matsuoka, H. Idei, Nagashima Yoshihiko, Makoto Hasegawa, Takumi Onchi, Permeation probes for hydrogen retention measurements in QUEST tokamak, 22nd International Conference on ION-SURFACE INTERACTIONS, 2015.08.
81. hanada kazuaki, Naoaki Yoshida, Takumi Honda, KUZMIN ARSENIY ALEKSANDROVI, Hideki zushi, Ikuji Takagi, Akiyoshi Hatayama, Akihide Fujisawa, Kazuo Nakamura, Hiroshi Idei, Yoshihiko Nagashima, makoto hasegawa, Takumi Onchi, Aki Higashijima, Shoji Kawasaki, Hisatoshi Nakashima, 渡邉 理, Osamu Mitarai, Atsushi Fukuyama, Dynamic retention characteristics in RF driven long duration discharges on QUEST, 8th IAEA Technical Meeting on Steady State Operations of Magnetic Fusion Devices, 2015.05.
82. makoto hasegawa, Kazuo Nakamura, Hideki zushi, hanada kazuaki, Akihide Fujisawa, KAZUTOSHI TOKUNAGA, Hiroshi Idei, Yoshihiko Nagashima, Aki Higashijima, Shoji Kawasaki, Hisatoshi nakashima, KUZMIN ARSENIY ALEKSANDROVI, Takumi Onchi, Osamu Watanabe, K.Mishra, Real-time identification of plasma current and its position with hall sensors for long-pulse operation on QUEST, 8th IAEA Technical Meeting on Steady State Operations of Magnetic Fusion Devices, 2015.05.
83. KUZMIN ARSENIY ALEKSANDROVI, Hideki zushi, Ikuji Takagi, hanada kazuaki, Y.Hirooka, H.Zhou, M.Kobayashi, M.sakamoto, S.K.Sharma, A.Rusinov, Naoaki Yoshida, Kazuo Nakamura, Akihide Fujisawa, K.Matsuoka, Hiroshi Idei, Yoshihiko Nagashima, makoto hasegawa, Takumi Onchi, K.Mishra, Gas balance and permeation probes for hydrogen retention analysis in QUEST, 8th IAEA Technical Meeting on Steady State Operations of Magnetic Fusion Devices, 2015.05.
84. K.Mishra, hideki zushi, Hiroshi Idei, Takumi Onchi, makoto hasegawa, hanada kazuaki, ORIGIN AND EVOLUTION OF SPONTANEOUS ROTATION IN PLASMA UNDER DIFFERENT MAGNETIC FIELD GEOMETRY IN TOKAMAK QUEST, The 42nd IEEE International Conference on Plasma Science, 2015.05.
85. Hideki zushi, KUZMIN ARSENIY ALEKSANDROVI, Ikuji Takagi, S.K.Sharma, makoto hasegawa, M.Kobayashi, T.Mutoh, Y.Hirooka, hanada kazuaki, Akihide Fujisawa, Hiroshi Idei, Kazuo Nakamura, Yoshihiko Nagashima, Takumi Onchi, K.Mishra, Naoaki Yoshida, S.Kubo, Y.Ueda, T.Fujita, S.Ide, N.Ohno,, Akiyoshi Hatayama, Akira Ejiri, T.Yamaguchi, H.Togashi, Y.Takase, Atsushi Fukuyama, Osamu Mitarai, Response function and Statistical approach for particle circulation on QUEST, 8th IAEA Technical Meeting on Steady State Operations of Magnetic Fusion Devices, 2015.05.
86. makoto hasegawa, Kazuo Nakamura, hideki zushi, hanada kazuaki, Akihide Fujisawa, KAZUTOSHI TOKUNAGA, Hiroshi Idei, Yoshihiko Nagashima, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima, Current Status and Prospect of Plasma Control System for Steady-state Operation on QUEST, 10 th IAEA Technical Meeting on Control, Data Acquisition and Remote Participation for Fusion Research , 2015.04.
87. hanada kazuaki, Investigation of particle balance in long duration discharges on QUEST, Third Kyushu Workshop on Solenoid-Free RF-Only ST Plasmas, 2015.03.
88. , Kishore Mishra, H. Zushi, H. Idei, M. Hasegawa, K. Hanada, High βp plasma formation using off-axis ECCD in Ohmic heated plasma in the spherical tokamak QUEST, 18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating, EC 2014, 2015.03, High poloidal beta (εβp ~ 1) operation in steady state condition in tokamaks is of great interest and has previously been demonstrated using NBI, LHCD and low current (Ip) plasma for a short time (<0.5 s). A very few experiments however, have been performed towards the investigation of highest obtainable βp in tokamak plasma. In this work we report the first result of high βp production and its sustainment though an off axis ECCD at two different frequencies (fundamental and second harmonic) in Ohmic (OH) target plasma. With application of ECCD, plasma βp increased to encounter an equilibrium limit and the standard limiter configuration is transformed to an Inboard Poloidal field Null (IPN) configuration. Both off-axis and on-axis ECCD is studied and found to have some distinctive features, which are discussed in this paper..
89. M. Kikuchi, S. Medvedev, T. Takizuka, A. Fasoli, Y. Wu, P. Diamond, X. Duan, Y. Kishimoto, K. Hanada, L. Villard, O. Sauter, S. Coda, B. Duval, H. Reimerdes, S. Brunner, G. Merlo, J. Jiang, M. Wang, M. Ni, D. Chen, H. Du, W. Duan, Y. Hou, A. Ivanov, A. Martynov, Y. Poshekhonov, Y. Ueda, L. Yan, X. Song, G. Zheng, J. Liu, K. Nagasaki, K. Imadera, K. Mishra, A. Fujisawa, K. Nakamura, H. Zushi, Mj Pueschel, X. Xu, P. Zhu, D. Told, G. Q. Li, M. Furukawa, T. Ozeki, K. Shimizu, K. Kawashima, H. Urano, M. Honda, T. Ando, M. Kuriyama, Perspective of negative triangularity tokamak as fusion energy system, 42nd European Physical Society Conference on Plasma Physics, EPS 2015, 2015.01.
90. M. Kikuchi, S. Medvedev, T. Takizuka, A. Fasoli, Y. Wu, P. Diamond, X. Duan, Y. Kishimoto, K. Hanada, L. Villard, O. Sauter, S. Coda, B. Duval, H. Reimerdes, S. Brunner, G. Merlo, J. Jiang, M. Wang, M. Ni, D. Chen, H. Du, W. Duan, Y. Hou, A. Ivanov, A. Martynov, Y. Poshekhonov, Y. Ueda, L. Yan, X. Song, G. Zheng, J. Liu, K. Nagasaki, K. Imadera, K. Mishra, A. Fujisawa, K. Nakamura, H. Zushi, Mj Pueschel, X. Xu, P. Zhu, D. Told, G. Q. Li, M. Furukawa, T. Ozeki, K. Shimizu, K. Kawashima, H. Urano, M. Honda, T. Ando, M. Kuriyama, Perspective of negative triangularity tokamak as fusion energy system, 42nd European Physical Society Conference on Plasma Physics, EPS 2015, 2015.01.
91. Natsuhiko Hamada, hanada kazuaki, Calorimetric Measurement of Direct Loss of Energetic Electrons with Movable Limiters in Non-Inductive Current Driven Limiter Plasma with a microwave of 8.2 GHz on QUEST, 3rd A3 Warkshop on ST, 2014.12.
92. Yuya Oyama, hanada kazuaki, Enhancement of electron density and density skewness in blobs induced by fuel gas puffing in ECR plasmas on QUEST, 3rd A3 Warkshop on ST, 2014.12.
93. hideki zushi, K. Mishra, Takumi Onchi, H. Togashi, Kazuo Nakamura, T. Yamaguchi, A. Ejiri, T. Shikama, K. Nagaoka, Hiroshi Idei, hanada kazuaki, Spontaneous rotation, flow reversal, and flow sustainment in non-inductive QUEST plasma, プラズマ・核融合学会第31回年会 / PLASMA2014, 2014.11.
94. hanada kazuaki, Plasma wall interaction in long duration plasmas on ST, プラズマ・核融合学会第31回年会 / PLASMA2014/シンポジウム9:定常プラズマ運転進展に向けた物理工学課題の国際連携研究, 2014.11.
95. Hiroki MIURA, hanada kazuaki, hideki zushi, Breakdown by 2nd harmonic ECRH on QUEST, The 24th International Toki Conference (ITC-24) on “Expanding Horizons of Plasma and Fusion Science through Cross-Fertilization”, 2014.11.
96. Kazuo Nakamura, Md. Mahbub Alam, F. Xia, O. Mitarai, makoto hasegawa, KAZUTOSHI TOKUNAGA, hideki zushi, hanada kazuaki, Shape Reproduction and Particle Orbit in RF-Driven Divertor Plasma on QUEST, The 24th International Toki Conference (ITC-24) on “Expanding Horizons of Plasma and Fusion Science through Cross-Fertilization”, 2014.11.
97. hanada kazuaki, Naoaki Yoshida, hideki zushi, Kazuo Nakamura, Akihide Fujisawa, Hiroshi Idei, Yoshihiko Nagashima, HIDEO WATANABE, makoto hasegawa, Investigation of Progression from Low to High Hydrogen Recycling during Long Duration Discharges on a Spherical Tokamak, QUEST, 25th Fusion Energy Conference (FEC 2014), 2014.10.
98. hideki zushi, KUZMIN ARSENIY ALEKSANDROVI, I. Takagi, S.K. Sharma, makoto hasegawa, M. Kobayashi, Y. Hirooka, Naoaki Yoshida, A. Rusinov, A. Inoue, H. Zhou, Akihide Fujisawa, hanada kazuaki, Hiroshi Idei, Determination of the System Function for the Particle Circulation Process Using Perturbation Technique in QUEST, 25th Fusion Energy Conference (FEC 2014), 2014.10.
99. Hiroshi Idei, T. Kariya, T. Imai, K. Mishra, 渡邉 理, hideki zushi, hanada kazuaki, Fully Non-Inductive Current Drive Experiments Using 28 GHz and 8.2 GHz Electron Cyclotron Waves in QUEST, 25th Fusion Energy Conference (FEC 2014), 2014.10.
100. K. Mishra, hideki zushi, Hiroshi Idei, makoto hasegawa, Takumi Onchi, S. Tashima, S. Banerjee, hanada kazuaki, Self Organization of High Beta_p Plasma Equilibrium with an Inboard Poloidal Null Sustained by Fully Non-Inductive Current Drive in QUEST, 25th Fusion Energy Conference (FEC 2014), 2014.10.
101. Naoaki Yoshida, hanada kazuaki, Thickness of deposition layer monitoring with a color detector on QUEST, 25th Fusion Energy Conference (FEC 2014), 2014.10.
102. N. Hamada, hanada kazuaki, hideki zushi, Heat Load Measurement with a Movable Limiter in Non-Inductive Current Driven Plasma Maintaining with a Microwave of 8.2GHz on QUEST, 17th International Congress on Plasma Physics (ICPP) 2014, 2014.09.
103. T. Kariya, R. Minami, T. Imai, T. Kato, Hiroshi Idei, hanada kazuaki, Development of 28 GHz gyrotron for cooperative ECH study, 10th Open Magnetic System for Plasma Confinement (OS2014), 2014.08.
104. N. Hamada, hanada kazuaki, hideki zushi, Heat load measurements with water cooled movable limiters in long duration plasmas on QUEST, A3 Foresight Summer School and Workshop on Spherical Torus (ST) 2014, 2014.07.
105. H. MIURA, hanada kazuaki, hideki zushi, Breakdown by Second harmonic ECRH on QUEST, A3 Foresight Summer School and Workshop on Spherical Torus (ST) 2014, 2014.07.
106. Kazuo Nakamura, Hiroki Fujita, Xiaolong Liu, Erbing Xue, Osamu Mitarai, makoto hasegawa, KAZUTOSHI TOKUNAGA, hideki zushi, hanada kazuaki, Quaternion Analysis of Matrix Converter and Three-Phase Power Electronic Circuit, International Conference on Electrical Engineering (ICEE) 2014, 2014.06.
107. Santanu Banerjee, hideki zushi, N. Nishino, K. Mishra, hanada kazuaki, Edge turbulence characteristics investigated in open magnetic field line configuration as a function of magnetic mirror ratio in QUEST , 4th Asia Pacific Transport Working Group(APTWG) International Conference, 2014.06.
108. Hiroshi Idei, K. Nagata, K. Mishra, M. Yamamoto, T. Itado, R. Akimoto, hanada kazuaki, Adaptive Array Technique for Differential Phase Reflectometry in the QUEST, 20th Topical Conference on High Temperature Plasma Diagnostics(HTPD 2014), 2014.06.
109. Kishore Mishra, Hiroshi Idei, hideki zushi, K. Nagata, R. Akimoto, hanada kazuaki, Thermal imaging of plasma with a phased array antenna in the spherical tokamak QUEST, 20th Topical Conference on High Temperature Plasma Diagnostics(HTPD 2014), 2014.06.
110. Takumi Onchi, hideki zushi, Y. Mahira, K. Nagaoka, S. Tashima, S. Banerjee, K. Mishra, Hiroshi Idei, hanada kazuaki, Observation of heat flux and plasma flow in scrape off layer in QUEST, 21st International Conference on Plasma Surface Interactions 2014, 2014.05.
111. hanada kazuaki, hideki zushi, Naoaki Yoshida, makoto hasegawa, K. Mishra, KUZMIN ARSENIY ALEKSANDROVI, Kazuo Nakamura, Akihide Fujisawa, Hiroshi Idei, Yoshihiko Nagashima, 渡邉 理, Takumi Onchi, Particle balance in long duration RF driven plasmas on QUEST, 21st International Conference on Plasma Surface Interactions 2014, 2014.05.
112. KUZMIN ARSENIY ALEKSANDROVI, hideki zushi, I. Takagi, S. K. Sharma, Y. Hirooka, H. Zhou, M. Kobayashi, M. Sakamoto, hanada kazuaki, Naoaki Yoshida, Global gas balance and influence of atomic hydrogen irradiation on the wall inventory in steady-state operation of QUEST tokamak, 21st International Conference on Plasma Surface Interactions 2014, 2014.05.
113. KAZUTOSHI TOKUNAGA, M. Matsuyama, S. Abe, S. Nagata, B. Tsuchiya, M. Tokitani, Y. Miyamoto, makoto hasegawa, Kazuo Nakamura, hanada kazuaki, hideki zushi, Effects of plasma exposure on tritium behavior of long term installed samples on first wall in spherical tokamak QUEST, 21st International Conference on Plasma Surface Interactions 2014, 2014.05.
114. N. Yugami, Naoaki Yoshida, HIDEO WATANABE, hanada kazuaki, hideki zushi, Retention and Desorption of Hydrogen in Plasma Facing Wall of QUEST, 21st International Conference on Plasma Surface Interactions 2014, 2014.05.
115. Mishura Kishore, 図子 秀樹, 出射 浩, 長谷川 真, 花田 和明, An analytical description of high βp equilibrium with negative triangularity in QUEST, 日本物理学会第69回年次大会, 2014.03.
116. Masaki Ishiguro, Kazuaki Hanada, Hiqing Liu, Ryota Ogata, Mitsutaka Isobe, Saya Tashima, Hideki Zushi, Khonosuke Sato, Akihide Fujisawa, Kazuo Nakamura, Hiroshi Idei, Mizuki Sakamoto, Makoto Hasegawa, Yuichi Takase, Takashi Maekawa, Yasuaki Kishimoto, Osamu Mitarai, Shoji Kawasaki, Hisatoshi Nakashima, Aki Higashijima, Investigation of non-inductive plasma current start-up by RF on QUEST, 15th International Congress on Plasma Physics, ICPP 2010 and 13th Latin American Workshop on Plasma Physics, LAWPP 2010, 2014.01, Formations of a closed flux surface (CFS) on QUEST are achieved by fully non-inductive current start-up driven by RF, which is 8.2GHz in frequency and more than 40kW in power. It found that appropriate magnetic configuration with positive n-index and reduction of particle recycling was crucial to achieve the non-inductive plasma current start-up (PCS) successfully. Especially the controllability of particle recycling should be improved by wall conditioning based on successive plasma production and wall cleaning with electron cyclotron resonance heating (ECR) plasmas induced by RF in frequency of 2.45GHz..
117. Kazuo Nakamura, H. Fujita, X. L. Liu, E. B. Xue, F. Xia, O. Mitarai, K. Kurihara, Y. Kawamata, M. Sueoka, Makoto Hasegawa, Kazutoshi Tokunaga, H. Zushi, Kazuaki Hanada, akihide fujisawa, K. Matsuoka, Hiroshi Idei, Yoshihiko Nagashima, S. Kawasaki, H. Nakashima, A. Higashijima, K. Araki, A. Fukuyama, Shape reconstruction of RF-driven divertor plasma on QUEST, 2013 IEEE 25th Symposium on Fusion Engineering, SOFE 2013, 2013.12, In the present RF-driven plasma with a lot of high-energy electrons, there may be anisotropic plasma pressure, which makes difficult a usual equilibrium analysis, but the CCS method can reconstruct the plasma shape precisely regardless of the anisotropy. And the plasma current effect in the open magnetic surfaces outside of the closed magnetic surfaces is considered in the RF-driven plasma. Further high-energy particle guiding center orbits are calculated aiming at estimation of the open-magnetic-surface current distribution..
118. Y.K.M. Peng, A. Ishida, Y. Takase, A. Ejiri, N. Tsujii, T. Maekawa, M. Uchida, hideki zushi, kazuaki hanada, Two-Fluid MHD Equilibrium Considerations of Te/Ti>>1, Collisionless Plasmas Sustained by RF Electron Heating, 23rd Internaitonal Toki Conference(ITC-23) "Large-scale Simulation and Fusion Science", 2013.11.
119. KUZMIN ARSENIY ALEKSANDROVI, hideki zushi, I. Yakagi, S.K. Sharma, A. Rusinov, Y. Inoue, Y. Hirooka, H.Zhou, M. Kobayashi, M. Sakamoto, kazuaki hanada, Atomic Hydrogen Flux Measurement using Permeation Probes in Steady State QUEST Spherical Tokamak Plasma, 10th International Conference on Tritium Science and Technology "TRITIUM 2013" , 2013.10.
120. Kishore Mishura, hideki zushi, Hiroshi Idei, Saya Tashima, BANERJEE SANTANU, makoto hasegawa, kazuaki hanada, On formation of a natural inboard separatrix in ECW heated Ohmic plasma on the spherical tokamak QUEST, 日本物理学会 2013年秋季大会, 2013.09.
121. Hiroshi Idei, hideki zushi, kazuaki hanada, Non-Inductive driven plasma start-up and investigation towards EBWCD in QUEST , US-Japan Workshop Physics of RF Heating of Fusion Plasmas, 2013.09.
122. kazuaki hanada, Recent progress on non-inductive driven plasma start-up and investigation towards EBWCD on QUEST, International Spherical Torus Workshop 2013, 2013.09.
123. Kishore Mishura, Hiroshi Idei, hideki zushi, Saya Tashima, BANERJEE SANTANU, kazuaki hanada, Characteristics of High Poloidal Beta Plasma Formed by Electron Cyclotron Waves in Spherical Tokamak QUEST, APPC12, 2013.07.
124. Santanu Banerjee, hideki zushi, N. Nishino, kazuaki hanada, Scrape Off Layer Flow Characteristics in the Spherical Tokamak QUEST, APPC12, 2013.07.
125. Kazuo Nakamura, H. Fujita, X.Liu, kazuaki hanada, Shape Reconstruction of RF-Driven Divertor Plasma on QUEST, 25th Symposium on Fusion Engineering, 2013.06.
126. kazuaki hanada, hideki zushi, Hiroshi Idei, Kazuo Nakamura, M.Ishiguro, S.Tashima, Power balance estimation in long duration discharges on QUEST, A3 Foresight Program Workshop on Critical Physics Issues Specific to Steady State Sustainment of High-Performance Plasmas 19-24 May, 2013, Beijing, China, 2013.05.
127. kazuaki hanada, Recent QUEST experiments on non-inductive current drive and plasma-wall interaction towards steady, 7th IAEA Technical Meeting on Steady-State Operation og Magnetic Fusion Devices; 14-17 May 2013; Aix en Provence, France, 2013.05.
128. hanada kazuaki, Heat and particle handling, Workshop on QUEST and Ralatad ST RF Startup and Sustainment Plasma Research, 2013.02.
129. BANERJEE SANTANU, K. Mishra, S. Tashima, T. Inoue, hideki zushi, Yoshihiko Nagashima, kazuaki hanada, Kazuo Nakamura, Study of plasma poloidal rotation induced by electron cyclotron waves (ECW) in QUEST
, CSS-EEST, 2013.02.
130. S. Tashima, H. Zushi, M. Isobe, H. Idei, S. Okamura, K. Hanada, K. Nakamura, A. Fujisawa, K. Matsuoka, M. Hasegawa, Y. Nagashima, M. Ishiguro, S. Kawasaki, H. Nakashima, A. Higashijima, The role of energetic electrons on non-inductive current start-up and formation of an inboard poloidal field null configuration in the spherical tokamak QUEST, 39th EPS Conference on Plasma Physics 2012, EPS 2012 and the 16th International Congress on Plasma Physics, 2012.12.
131. BANERJEE SANTANU, hideki zushi, N. Fukumoto, M. Nagata, N. Nishino, Yoshihiko Nagashima, kazuaki hanada, Edge turbulence characteristics and blob dynamics following the compact toroid injection investigated with fast visible imaging in QUEST, プラズマ・核融合学会第29回年会, 2012.11.
132. Santanu Banerjee, hideki zushi, N. Nishino, Yoshihiko Nagashima, kazuaki hanada, S. Tashima, Edge turbulence characteristics of the Ohmic-ECRH driven plasma current phase investigated with fast visible imaging in QUEST, 22nd International Toki Conference, Ceratopia Toki, 2012.11.
133. S. Tashima, hideki zushi, M. Isobe, Hiroshi Idei, S. Okamura, kazuaki hanada, Non-inductive current drive by EC waves in an inboard poloidal magnetic field null configuration on the spherical tokamak QUEST, 22nd International Toki Conference, Ceratopia Toki, 2012.11.
134. H. Takahashi, kazuaki hanada, M. Ishiguro, hideki zushi, Measurement of ion saturation current and floating potential profile in divertor region on QUEST, 22nd International Toki Conference, Ceratopia Toki, 2012.11.
135. hideki zushi, S. Tashima, M. Ishiguro, makoto hasegawa, BANERJEE SANTANU, N. Nishino, M. Isobe, kazuaki hanada, Non-inductive Current Start-up and Plasma Equilibrium with an Inboard Poloidal Field Null by Means of Electron Cyclotron Waves in QUEST, 24TH IAEA FUSION ENERGY CONFERENCE, 2012.10.
136. Hiroshi Idei, hideki zushi, kazuaki hanada, Electron Bernstein Wave Heating and Current Drive Effect in QUEST, 24TH IAEA FUSION ENERGY CONFERENCE, 2012.10.
137. BANERJEE SANTANU, hideki zushi, N. Nishino, Yoshihiko Nagashima, kazuaki hanada, Fluctuation characteristics and flow at the SOL of ECRH driven plasma in QUEST, 日本物理学会 2012年 秋季大会, 2012.09.
138. Hiroshi Idei, kazuaki hanada, hideki zushi, QUEST 装置のオーミック放電における電子バーンシュタイン波重畳加熱・電流駆動効果, 日本物理学会 2012年 秋季大会, 2012.09.
139. Kazuo Nakamura, Yoshisue Tatsuya, Liu Xiaolong, Xue Erbing, Mitarai Osamu, makoto hasegawa, KAZUTOSHI TOKUNAGA, hideki zushi, kazuaki hanada, Three Phase-to-Single Phase Matrix Converter Design for Feedback Stabilization by Magnetic Field Coil, ICEE2012, 2012.07.
140. BANERJEE SANTANU, hideki zushi, N. Nishino, kazuaki hanada, M. Ishiguro, Edge turbulence study with fast visible imaging in QUEST, 2nd East-Asian School and Workshop on Laboratory, Space, Astrophysical Plasmas, 2012.06.
141. S. Tashima, hideki zushi, M. Isobe, Hiroshi Idei, S. Okamura, kazuaki hanada, Kazuo Nakamura, The role of energetic electrons on non-inductive current start-up and formation of an inboard poloidal field null configuration in the spherical tokamak QUEST, 39th EPS Conference & 16th Int. Congress on Plasma Physics, 2012.06.
142. BANERJEE SANTANU, hideki zushi, N. Nishino, kazuaki hanada, M. Ishiguro, Variations in Edge Turbulence Induced by Poloidal Magnetic Field Curvatures for 8.2 GHz Slab Plasma in QUEST, 19th Topical Conference High-Temperature Plasma Diagnostics, 2012.05.
143. hanada kazuaki, Present status of QUEST experiment, NIFS ST Workshop, 2012.02.
144. Hiroshi Idei, M. Sakaguchi, K. Nagata, E. Kalinnikova, A. Fukuyama, H. Zushi, Kazuaki Hanada, Kazuo Nakamura, M. Sakamoto, Makoto Hasegawa, Y. Takase, T. Maekawa, O. Mitarai, S. Kawasaki, H. Nakashima, A. Higashijima, Development of CW 16-element phased-array antenna for electron bernstein wave heating and current drive experiments in QUEST, 36th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2011, 2011.12, The 16-element phased-array antenna has been developed for the EBWH/CD experiments. The 2-D k-spectra could be controlled. The heat load and stress were analyzed to be moderate in the 200kW CW operation. The symmetrically 2-D narrow-field distributions were excited by the developed antenna, indicating its good applicability to the EBWH/CD experiments..
145. H. Idei, H. Zushi, K. Hanada, K. Nakamura, A. Fujisawa, M. Hasegawa, N. Yoshida, M. Sakamoto, H. Watanebe, K. Tokunaga, Y. Nagashima, A. Ejiri, M. Sakaguchi, E. Kalinnikova, M. Ishiguro, S. Tashima, A. Fukuyama, H. Igami, S. Kubo, S. K. Sharma, T. Ryokai, H. Q. Liu, M. Isobe, K. Nagaoka, H. Nakanishi, N. Nishino, S. Kawasaki, H. Nakashima, A. Higashijima, Y. Takase, T. Maekawa, O. Mitarai, M. Kikuchi, K. Toi, Electron Cyclotron / Bernstein wave heating and current drive experiments using phased-array antenna in QUEST, 19th Topical Conference on Radio Frequency Power in Plasmas, 2011.12, The phased-array antenna system for Electron Cyclotron/Bernstein Wave Heating and Current Drive experiments has been developed in the QUEST. The antenna was designed to excite a pure O-mode wave in the oblique injection for the O-X-B mode conversion experiments, and its good performances were confirmed at a low power level. The plasma current (<∼15kA) with an aspect ratio of 1.5 was started up and sustained by only RF injection in the low-density operations. The long pulse discharge of 10 kA was also attained for 37 s. The new density window to sustain the plasma current was observed in the high-density plasmas. The single-null divertor configuration with the high plasma current (<∼25kA) was attained in the 17 s plasma sustainment..
146. hanada kazuaki, QUEST experiments towards steady state operation of spherical tokamaks, The Joint Meeting of 5th IAEA Technical Meeting on Spherical Tori 16th International Workshop on Spherical Torus (ISTW2011), 2011 US-Japan Workshop on ST Plasma September 27-30, 2011, National Institute for Fusion Science, Toki, Japan, 2011.09.
147. S. Tashima, H. Zushi, M. Isobe, S. Okamura, H. Idei, K. Hanada, S. K. Sharma, T. Ryoukai, M. Ishiguro, H. Liu, The role of fast electrons on the non-inductive current ramp-up in QUEST, 37th EPS Conference on Plasma Physics 2010, EPS 2010, 2010.12, The role of energetic electrons during the non-inductive current ramp-up is investigated in electron cyclotron heated plasma (≤ 60kW) in the spherical tokamak QUEST. The pulse height analysis of the hard X-ray (HX) is carried out with a fast time resolution of ≥1 ms, and acceleration of the electrons are studied by measuring the evolution of spectrum. It is found that wall recycling condition affects the formation of the tokamak configuration from an initial open magnetic field configuration. The vertical magnetic field Bz dependence of driven current Ip (~ 11 kA) is compared with those of HXs for studying contribution of fast electron. For high recycling case, Ip and HXs show peaks at an optimal low value of Bz/Bt = 7 ×10-3, however, for low recycling case, both increase monotonically with B z/Bt = 7 ×10-3 - 21×10 -3..
148. Study about the Reconstruction of Magnetic Surface with the Consideration of Eddy Current in QUEST, M. Ishiguro, K. Hanada, K. Nakamura, O. Mitarai, T. Sakimura, Joint Technical Meeting on Plasma Science and Technology, Pulsed Power Technology and Electrical Discharges, IEE Japan, Aug., 2009.
149. Steady-state operation scenario and the first experimental result on QUEST 
K.Hanada, K.N.Sato, H.Zushi, K.Nakamura, M.Sakamoto, H.Idei, M.Hasegawa, Y.Takase, O.Mitarai, T.Maekawa, Y.Kishimoto, M.Ishiguro, T.Yoshinaga, H.Igami, N.Nishino, H.Honma, S.Kawasaki, H.Nakashima, A.Higashijima, Y.Higashizono, A.Ando), N.Asakura, A.Ejiri, Y.Hirooka, A.Ishida, A.Komori, M.Matsukawa, O.Motojima, Y.Ogawa, N.Ohno, Y.Ono, M.Peng, S.Sudo, H.Yamada, N.Yoshida, Z.Yoshida
18th International Toki Conference (ITC18) Development of Physics and Technology of Stellarators/Heliotrons en route to DEMO, December 9-12, 2008, Ceratopia Toki, Toki Gifu JAPAN
.
150. 日本物理学会 第59回年次大会(於 九州大学 3月27日-30日).
151. Estimation of Power Balance in Steady State LHCD Discharges on TRIAM-1M.
152. Transport barrier formation and its maintenance by LHCD on TRIAM-1M.
153. Transport barrier formation by LHCD on TRIAM-1M.
154. The ITB formation by LHCD and the preliminary experiment of ECCD on TRIAM-1M.
155. The steady state operation of a superconducting tokamak, TRIAM-1M.
156. 19th IAEA Fusion Energy Conference, Lyon, France, 14-19 October 2002.
157. US-JAPAN Workshop on "RF Physics" and "Profile Control and Steady State Operation Using RF" , Chikushi Campus, Kyushu Univ., Fukuoka, Feb. 2-5, 2002.
158. 1st ITPA topic group on “Energetic particles, Heating and Steady-state operation” at Naka on 6-8 Feb., 2002.
159. 29th EPS Conference on Plasma Physics and Controlled Fusion, Montreux, Switzerland, 17-21 June 2002.
160. 第15回TRIAM研究会(於 九州大学筑紫地区 2002年3月14日).
161. 日本物理学会 2002年秋季大会(於 中部大学 2002年9月6-9日).
162. 平成14年度ミリ波応用技術作業会(於 核融合科学研究所 2002年7月30日).
163. 日本物理学会 第57回年次大会(於 立命館大学びわこ・くさつキャンパス 2002年3月24-27日).
164. Fusion forum 懇談会(於 九州大学 先端科学技術共同研究センター 平成14年11月22日).
165. プラズマ・核融合学会 第18回年会(於 クローバープラザ(福岡県春日市) 2001年11月27日〜30日).