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Journal Articles

Report of ITPA TG Meetings, 52

Shinohara, Koji; Hayashi, Nobuhiko; Isayama, Akihiko; Miyato, Naoaki; Urano, Hajime; Aiba, Nobuyuki

Purazuma, Kaku Yugo Gakkai-Shi, 91(12), p.797 - 800, 2015/12

no abstracts in English

Journal Articles

Integrated modelling of toroidal rotation with the 3D non-local drift-kinetic code and boundary models for JT-60U analyses and predictive simulations

Honda, Mitsuru; Satake, Shinsuke*; Suzuki, Yasuhiro*; Yoshida, Maiko; Hayashi, Nobuhiko; Kamiya, Kensaku; Matsuyama, Akinobu; Shinohara, Koji; Matsunaga, Go; Nakata, Motoki; et al.

Nuclear Fusion, 55(7), p.073033_1 - 073033_11, 2015/07

 Times Cited Count:7 Percentile:28.43(Physics, Fluids & Plasmas)

Journal Articles

Report on ITPA (International Tokamak Physics Activity) meeting, 49

Shinohara, Koji; Isayama, Akihiko; Suzuki, Takahiro; Yoshida, Maiko

Purazuma, Kaku Yugo Gakkai-Shi, 91(7), p.494 - 496, 2015/07

AA2015-0141.pdf:0.38MB

no abstracts in English

Journal Articles

Effects of the radial electric field on the confinement of fast ions in ITER

Tani, Keiji*; Honda, Mitsuru; Oikawa, Toshihiro*; Shinohara, Koji; Kusama, Yoshinori; Sugie, Tatsuo

Nuclear Fusion, 55(5), p.053010_1 - 053010_15, 2015/05

AA2014-0355.pdf:2.0MB

 Times Cited Count:3 Percentile:13.75(Physics, Fluids & Plasmas)

The effects of a radial electric field (EF) on the losses of alpha particles and NBI fast ions in typical ITER operation scenarios for both error fields due to test blanket modules (TBMs) and toroidal field (TF) ripple were evaluated using an iterative method to execute an orbit-following Monte-Carlo code and a one-dimensional transport code. The EF effect on the loss of fast ions strongly depends on the operation scenario as well as on the error field. The electric field is very significant in the loss of fast ions in a 9MA ITER operation scenario with a higher safety factor and in the error field associated with TBMs. The EF effect in the error field of TF-ripple is very small in any operation scenario. The radial electric field changes the toroidal precession of fast ions and consequently alter their condition of resonance with the error field, which may account for the EF effect on the loss of fast ions in ITER with TBMs.

Journal Articles

Alfv$'{e}$n acoustic channel for ion energy in high-beta tokamak plasmas

Bierwage, A.; Aiba, Nobuyuki; Shinohara, Koji

Physical Review Letters, 114(1), p.015002_1 - 015002_5, 2015/01

 Times Cited Count:10 Percentile:58.48(Physics, Multidisciplinary)

Journal Articles

Alfv$'{e}$n acoustic channel for ion energy in high-beta tokamak plasmas revisited with a linear gyrokinetic model (LIGKA)

Bierwage, A.; Lauber, P.*; Aiba, Nobuyuki; Shinohara, Koji; Yagi, Masatoshi

Proceedings of 14th IAEA Technical Meeting on Energetic Particles in Magnetic Confinement Systems (Internet), 8 Pages, 2015/00

Journal Articles

Report on ITPA meetings, 47

Isayama, Akihiko; Urano, Hajime; Miyato, Naoaki; Ide, Shunsuke; Asakura, Nobuyuki; Shinohara, Koji

Purazuma, Kaku Yugo Gakkai-Shi, 90(12), p.830 - 833, 2014/12

no abstracts in English

Journal Articles

Experimental analyses and predictive simulations of toroidal rotation driven by the neoclassical toroidal viscosity in rippled tokamaks

Honda, Mitsuru; Satake, Shinsuke*; Suzuki, Yasuhiro*; Matsunaga, Go; Shinohara, Koji; Yoshida, Maiko; Matsuyama, Akinobu; Ide, Shunsuke; Urano, Hajime

Nuclear Fusion, 54(11), p.114005_1 - 114005_14, 2014/11

 Times Cited Count:15 Percentile:59.18(Physics, Fluids & Plasmas)

Journal Articles

Orbit-based analysis of resonant excitations of Alfv$'e$n waves in tokamaks

Bierwage, A.; Shinohara, Koji

Physics of Plasmas, 21(11), p.112116_1 - 112116_21, 2014/11

 Times Cited Count:23 Percentile:72.13(Physics, Fluids & Plasmas)

Journal Articles

Evaluation of two-stage system for neutron measurement aiming at increase in count rate at Japan Atomic Energy Agency - Fusion Neutronics Source

Shinohara, Koji; Ishii, Keiichi*; Ochiai, Kentaro; Baba, Mamoru*; Sukegawa, Atsuhiko; Sasao, Mamiko*; Kitajima, Sumio*

Review of Scientific Instruments, 85(11), p.11E823_1 - 11E823_4, 2014/11

 Times Cited Count:0 Percentile:0.01(Instruments & Instrumentation)

Journal Articles

A Study on fast digital discrimination of neutron and $$gamma$$-ray for improvement neutron emission profile measurement

Uchida, Yuki*; Takada, Eiji*; Fujisaki, Akihiro*; Isobe, Mitsutaka*; Ogawa, Kunihiro*; Shinohara, Koji; Tomita, Hideki*; Kawarabayashi, Jun*; Iguchi, Tetsuo*

Review of Scientific Instruments, 85(11), p.11E118_1 - 11E118_4, 2014/11

 Times Cited Count:9 Percentile:40.01(Instruments & Instrumentation)

Journal Articles

Dynamics of low-$$n$$ shear Alfv$'e$n modes driven by energetic N-NB ions in JT-60U

Bierwage, A.; Todo, Yasushi*; Aiba, Nobuyuki; Shinohara, Koji

Nuclear Fusion, 54(10), p.104001_1 - 104001_14, 2014/10

 Times Cited Count:18 Percentile:65.36(Physics, Fluids & Plasmas)

Journal Articles

Integrated modeling of toroidal rotation with the 3D non-local drift-kinetic code and boundary models for JT-60U analyses and predictive simulations

Honda, Mitsuru; Satake, Shinsuke*; Suzuki, Yasuhiro*; Yoshida, Maiko; Hayashi, Nobuhiko; Kamiya, Kensaku; Matsuyama, Akinobu; Shinohara, Koji; Matsunaga, Go; Nakata, Motoki; et al.

Proceedings of 25th IAEA Fusion Energy Conference (FEC 2014) (CD-ROM), 8 Pages, 2014/10

Journal Articles

Multi-time-scale energetic particle dynamics in JT-60U simulated with MHD activity, sources and collisions

Bierwage, A.; Shinohara, Koji; Todo, Yasushi*; Yagi, Masatoshi

Proceedings of 25th IAEA Fusion Energy Conference (FEC 2014) (CD-ROM), 8 Pages, 2014/10

Journal Articles

Report on ITPA meetings, 45

Hayashi, Nobuhiko; Aiba, Nobuyuki; Isayama, Akihiko; Shinohara, Koji; Honda, Mitsuru

Purazuma, Kaku Yugo Gakkai-Shi, 90(6), p.352 - 355, 2014/06

no abstracts in English

Journal Articles

Dynamics of energetic particle driven modes and MHD modes in wall-stabilized high-$$beta$$ plasmas on JT-60U and DIII-D

Matsunaga, Go; Okabayashi, Michio*; Aiba, Nobuyuki; Boedo, J. A.*; Ferron, J. R.*; Hanson, J. M.*; Hao, G. Z.*; Heidbrink, W. W.*; Holcomb, C. T.*; In, Y.*; et al.

Nuclear Fusion, 53(12), p.123022_1 - 123022_13, 2013/12

 Times Cited Count:6 Percentile:26.2(Physics, Fluids & Plasmas)

Journal Articles

Report on ITPA (International Tokamak Physics Activity) meeting, 42

Yoshida, Maiko; Shinohara, Koji; Hayashi, Nobuhiko; Isayama, Akihiko; Kamiya, Kensaku

Purazuma, Kaku Yugo Gakkai-Shi, 89(12), p.887 - 889, 2013/12

ITPA (International Tokamak Physics Activity) meetings were held in Autumn 2013.

Journal Articles

Research and development of neutron detection system using scintillator and digital-signal processing

Shinohara, Koji; Ishii, Keiichi*; Ochiai, Kentaro; Baba, Mamoru*; Sasao, Mamiko*; Kitajima, Sumio*

Plasma and Fusion Research (Internet), 8, p.1402144_1 - 1402144_9, 2013/11

Journal Articles

Role of convective amplification of $$n$$=1 energetic particle modes for N-NB ion dynamics in JT-60U

Bierwage, A.; Shinohara, Koji; Aiba, Nobuyuki; Todo, Yasushi*

Nuclear Fusion, 53(7), p.073007_1 - 073007_12, 2013/07

 Times Cited Count:18 Percentile:62.36(Physics, Fluids & Plasmas)

Journal Articles

ELM triggering by energetic particle driven mode in wall-stabilized high-$$beta$$ plasmas

Matsunaga, Go; Aiba, Nobuyuki; Shinohara, Koji; Asakura, Nobuyuki; Isayama, Akihiko; Oyama, Naoyuki; JT-60 Team

Nuclear Fusion, 53(7), p.073046_1 - 073046_9, 2013/06

 Times Cited Count:4 Percentile:17.69(Physics, Fluids & Plasmas)

224 (Records 1-20 displayed on this page)