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Dive into the research topics where Kubo Shin is active.

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Featured researches published by Kubo Shin.


Journal of the Physical Society of Japan | 2006

Improvement in Plasma Heating at Higher-Density Region Using 106.4 GHz Electron Cyclotron Heating System for Compact Helical System

Yoshimura Yasuo; Akiyama Tsuyoshi; Isobe Mitsutaka; Shimizu Akihiro; Suzuki Chihiro; Takahashi Chihiro; Nagaoka Kenichi; Nishimura Shin; Minami Takashi; Matsuoka Keisuke; Okamura Shoichi; Kubo Shin; Shimozuma Takashi; Igami Hiroe; Notake Takashi; Ohkubo Kunizo; Mutoh Takashi

A 106.4 GHz electron cyclotron heating (ECH) system for compact helical system (CHS) has been newly constructed. Initial experiments to confirm the systems performance showed good controllability of beam direction and polarization for optimized heating. In the beam direction and polarization scan experiments, on-axis beam injection with second-harmonic X-mode polarization resulted in the highest stored energy and central electron temperature. Additional heating becomes possible for the plasmas sustained by neutral beam injection with a density higher than the plasma cutoff density of 3.5×10 19 m -3 for the 53.2 GHz waves of the existing ECH system. Applying the 106.4 GHz heating waves extends the CHS plasma parameter to a high electron temperature of the keV order at a high density up to the second-harmonic X-mode cutoff density of 7×10 19 m -3 .


Fusion Engineering and Design | 2017

28GHz QUEST ECH/ECCDシステムのための低オーミック損失と任意の偏光状態と偏光子の最適設計【Powered by NICT】

Tsujimura Toru; Idei Hiroshi; Kubo Shin; Kobayashi Sakuji


遠赤外領域開発研究 | 2016

Transmission Characteristics of Sub THz Wave by Corrugated Waveguide

Saito Teruo; Kasa Jun; Yamaguchi Yusuke; Hirobe Takumi; Tatematsu Yoshinori; Okubo Kunizo; Kubo Shin; Shimozuma Takashi


Archive | 2004

Study of Electron Heat Pulse Propagation induced by ECRH/on-off on T-10 and LHD

Neudatchin Sergey; Inagaki Shigeru; Itoh Kimitaka; Kislov Alexandr; Kislov Dmitrii; Krupin Vadim; Kubo Shin; Lysenko Sergei; Ohkubo Kunizo; Pavlov Yurii; Poznyak Valerii; Shimozuma Takashi; Sushkov Alexei; Yakovlev Mikhail; Ida Katsumi


Archive | 2004

Comparison of Empirical Transport Models with Transient Transport Experiments in LHD

Yakovlev Mikhail; Inagaki Shigeru; Ida Katsumi; Tamura Naoki; Shimozuma Takashi; Kubo Shin; Nagayama Yoshio; Kawahata Kazuo; Sudo Shigeru; Komori Akio


Archive | 2004

Temperature, Density, Magnetic Field and Pitch Angle Dependence of Neutral Particle Spectrum in Large Helical Device

Ozaki Tetsuo; Murakami Sadayoshi; Sanuki Heiji; Kubo Shin


Archive | 2002

ECH Power Modulation Experiments in LHD

Kubo Shin; Idei Hiroshi; Shimozuma Takashi; Yoshimura Yasuo; Notake Takashi; Ohkubo Kunizo; Inagaki Shigeru; Nagayama Yoshio; Narihara Kazumichi


Archive | 2002

Transport Barrier Analysis of LHD Plasmas in Gomparison with Neoclassical Models

Yamazaki Kozo; Minami Takashi; Narihara Kazuto; Tanaka Kenji; Kubo Shin


Archive | 1998

Study of Edge Plasma Perturbations Induced by Sawtooth Crash on CHS

Ohkuni Kotarol; Toi Kazuo; Ohdachi Satoshi; Takechi Manabul; Morisaki Tomohiro; Takagi Shojil; Akiyama Ryuichi; Osakabe Masaki; Kubo Shin; Idei Hiroshi; Okamura Shoichi; Matsuoka Keisuke


Archive | 1998

Electric Field Bifurcation and Transition in CHS Heliotron/Torsatron

Fujisawa Akihide; Iguchi Harukazu; Idei Hiroshi; Kubo Shin; Lee Seishu; Matsuoka Keisuke; Okamura Shoichi; Tanaka Kenji; Minami Takashi; Morita Shigeru; Ohdachi Satoshi; Osakabe Masaki; Akiyama Ryuichi; Yoshimura Yasuo; Toi Kazuo; Sanuki Heiji; Itoh Kimitaka; Takahashi Chihiro; Kojima Mamoru; Hidekuma Shigeru; Ida Katsumi; Nishimura Shin; Eiiri Akira; Hamada Yasushi; Itoh Sanae-L; Inoue Noriyuki; Sakamoto Ryuichi; Fujmara Masami

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