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5篇 您的检索式:作者名="Shinsuke Arai"
    题名 作者 年代 出处 被引量
1A synchronous rectification using a digital PLL technique for contaetless power supplies显示文摘Hidekazu Miura Shinsuke Arai Fumihiro Sato 2005IEEE Transactions on Magnetics2005,41,10:1
2Improvement of the transcutaneous energy transmission system utilizing ferrite cored coils for artificial hearts显示文摘Hidekazu Miura Shinsuke Arai Yasuyuki Kakubari 2006IEEE Transactions on Magnetics2006,42,10:1
3Examination of Circuit Parameters for Stable High Efficiency TETS for Artificial Hearts显示文摘Shinsuke Arai Hidekazu Miura Fumihiro Sato 0,,10:1
4Present Status of the Nd:YAG Thomson Scattering System Development for Time Evolution Measurement of Plasma Profile on Heliotron J显示文摘A new high repetition rate Nd:YAG Thomson scattering system is developed for the Heliotron J helical device.A main purpose of installing the new system is the temporal evolution measurement of a plasma profile for improved confinement physics such as the edge transport barrier (H-mode) or the internal transport barrier of the helical plasma.The system has 25 spatial points with ~10mm resolution.Two high repetition Nd:YAG lasers (>550mJ@ 50Hz) realize the measurement of the time evolution of the plasma profile with ~10ms time intervals.Scattered light is collected by a large concave mirror (D=800 mm,f/2.25) with a solid angle of ~100 mstr and transferred to interference filter polychromators by optical fiber bundles in a staircase form.The signal is amplified by newly designed fast preamplifiers with DC and AC output,which reduces the low frequency background noise.The signals are digitized with a multi-event QDC,fast gated integrators.The data acquisition is performed by a VME-based system operated by the CINOS.Takashi MINAMI Shohei ARAI Naoki KENMOCHI Hiroaki YASHIRO Chihiro TAKAHASHI Shinji KOBAYASHI Tohru MIZUUCHI Shinsuke OHSHIMA Satoshi YAMAMOTO Hiroyuki OKADA Kazunobu NAGASAKI Yuji NAKAMURA Kiyoshi HANATANI Shigeru KONOSHIMA Fumimichi SANO 2013Plasma Science and Technology2013,15,3:0
5Recent Progress in Plasma Control Studies on the Improvement of Plasma Performance in Heliotron J显示文摘Recent progress in plasma control studies on the improvement of plasma performancein Heliotron J is reviewed.The supersonic molecular beam injection (SMBI)fueling issuccessfully applied to Heliotron J plasma.A supersonic H2-beam is effectively injected to increasefueling efficiency and generate a peaked density profile.Local fueling with a short-pulsedSMBI can increase the core plasma density and avoid the degradation arising from edge cooling.Second harmonic electron cyclotron current drive (ECCD)experiments were conducted by launchinga focused Gaussian beam with a parallel refractive index of-0.05≤N||≤ 0.6.Results showthat the electron cyclotron (EC)driven current is determined not only by N|| but also by localmagnetic field (B)structure where the EC power is deposited.Detailed analysis of the observedN|| and B dependences is in progress with a ray-tracing simulation using the TRAVIS code.Fastion velocity distribution was investigated using fast protons generated by ion cyclotron resonantfrequency (ICRF)minority heating.For the standard configuration in Heliotron J.charge exchangeneutral particle analysis (CX-NPA)measurements show higher effective temperature offast minority protons in the on-axis resonance case compared to that in the HFS (high field side)off-axis resonance case.However,the increase in bulk ion temperature in the HFS resonance caseis larger than that in the on-axis resonance.Tohru MIZUUCHI Kazunobu NAGASAKI Hiroyuki OKADA Shinji KOBAYASHI Satoshi YAMAMOTO Takashi MINAMI Shinsuke OHSHIMA Masaki TAKEUCHI Kiyofumi MUKAI Hyunyong LEE Linge ZANG Kohta NOMURA Masashige SUWA Kento YAMAMOTO Hiroaki YASHIRO Hayao YOSHINO Shouhei ARAI Tasuku KAGAWA Takayuki MINAMI Kouji MIZUNO Yoshinobu WADA Hiroto WATADA Nobuhiro NISHINO Yosuke NAKASHIMA Kiyoshi HANATANI Yuji NAKAMURA Shigeru KONOSHIMA Fumimichi SANO 2011Plasma Science and Technology2011,13,1:0
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