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您的检索式：作者名="T. TOKUZAWA"
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| 1 | ICRF Heated Long-Pulse Plasma Discharges in LHD显示文摘A long-pulse plasma discharge for more than 30 min.was achieved on the LargeHelical Device(LHD).A plasma of n_e=0.8×10^(19)m^(-3)and T_(iO)=2.0 keV was sustained withP_(ICH)=0.52 MW,P_(ECH)=0.1 MW and averaged P_(NBI)=0.067 MW.Total injected heatingenergy was 1.3 GJ,which was a quarter of the prepared RF heating energy.One of the keys to thesuccess of the experiment was a dispersion of the local plasma heat load to divertors,accomplishedby shifting the magnetic axis inward and outward. | R. KUMAZAWA T. SEKI T. MUTOH K. SAITO T. WATARI Y. NAKAMURA M. SAKAMOTO T. WATANABE S. KUBO T. SHIMOZUMA Y. YOSHIMURA H. IGAMI Y. TAKEIRI Y. OKA K. TSUMORI M. OSAKABE K. IKEDA K. NAGAOKA O. KANEKO J. MIYAZAWA S. MORITA K. NARIHARA M. SHOJI S. MASUZAKI M. GOTO T. MORISAKI B. J. PETERSON K. SATO T. TOKUZAWA N. ASHIKAWA K. NISHIMURA H. FUNABA H. CHIKARAISHI T. NOTAKE Y. TORII H. OKADA M. ICHIMURA H. HIGAKI Y. TAKASE H. KASAHARA F. SHIMPO G.NOMURA C.TAKAHASHI M.YOKOTA A. KATO 赵燕平 J. S. YOON J. G. KWAK H. YAMADA K. KAWAHATA N. OHYABU K. IDA Y. NAGAYAMA N. NODA A. KOMORI S. SUDO O. MOTOJIMA | 2006 | Plasma Science and Technology2006，8，1： | 4 |
| 2 | Contribution of the Large Helical Device Plasmas to Alfvén Eigenmode Physics in Toroidal Plasmas显示文摘在有三种维的配置的大螺旋状的设备(LHD ) , Alfv é n eigenmodes (AE ) 由精力充沛的离子使动摇广泛地用中立横梁被调查有单音的补品和非单调的旋转变换(ι/2π) 的激烈的血浆侧面。在有单音的补品 ι/2π-profile 的血浆,象全球的一样的核心局部性的导致 toroidicity 的 Alfv é n eigenmode (TAE ) 经常被观察。随平均 toroidal 贝它价值的增加,定义为全部的血浆压力的比率到 toroidal 磁性的压力,有低 toroidal 模式数字的核心局部性的 TAE 变得全球。在有单音的补品 ι/2π-profile 的相对高的贝它血浆,有不同 toroidal 模式数字的二 TAE 经常线性地非交往并且通过联合的三个波浪产生另外一个模式。在有强烈相反中立的横梁水流开车产生的非单调的 ι/2π-profile 的血浆,逆行砍 Alfv é n eigenmode (RSAE ) 和精力充沛的离子激动的测地学的声学的模式(鲸鱼群) 在螺旋状的血浆第一次被观察。非线性的联合也在 RSAE 和鲸鱼群之间被观察。 | K. TOI M. ISOBE M. OSAKABE F. WATANABE K. OGAWA T. TOKUZAWA A. SHIMIZU T. IDO K. IDA, T. ITO S. MORITA K. NAGAOKA K. NARIHARA M. NISHIURA S. OHDACHI S. SAKAKIBARA K. TANAKA LHD Experiment Group | 2009 | Plasma Science and Technology2009，11，4： | 1 |
| 3 | Formation of Edge Transport Barriers by L-H Transition and Large Reversed Plasma Current on LHD显示文摘On the Large Helical Device(LHD)where nested magnetic surfaces are surroundedby the ergodic field layer,edge transport barrier(ETB)was produced in neutral-beam-injection(NBI)heated plasmas through transition and non-transition processes.The former case is the ETBformation by L-H transition,where characteristics of L-H transition observed in a tokamak plasmaare clearly recognized.The confinement improvement is the modest(~10%),compared with theISS95 international stellarator scaling.The threshold power for the transition is comparable orslightly lower than the ITER scaling law established by tokamaks and compact tori.The ETBis formed inside the ergodic field layer of the vacuum field.The ETB formation destabilizes edgecoherent modes such as m/n=1/1,2/3 and 1/2,of which rational surfaces are in the magnetichill.The formed ETB is partially and transiently destroyed by these coherent edge MHD modesand edge localized modes(ELMs)typically observed in Hα signals.The latter ETB is observed ina plasma with large reversed NBI-driven current more than 100 kA at Bt = 1 T.In these plasmas,the edge magnetic shear is enhanced by the current and the rotational transform in the core regionis expected to be appreciably reduced.Thus reduced rotational transform in the plasma centralregion will enhance outward heat and particle fluxes toward ergodic edge layer.The ETB withsteep electron temperature gradient up to~5 keV/m is formed by blocking enhanced outwardheat flux. | K. TOI S. OHDACHI F. WATANABE K. NARIHARA T. MORISAKI 高翔 M. GOTO K. IDA S. MASUZAKI K. MIYAZAWA S. MOR.ITA S. SAKAKIBARA K. TANAKA T. TOKUZAWA K.W. WATANABE 严龙文 M. YOSHINUMA | 2006 | Plasma Science and Technology2006，8，1： | 0 |
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