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Development of net-current free heliotron plasmas in the Large Helical Device

机译:大型螺旋装置中净电流自由日光子等离子体的发展

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Remarkable progress in the physical parameters of net-current free plasmas has been made in the Large Helical Device (LHD) since the last Fusion Energy Conference in Chengdu, 2006 (Motojima et al 2007 Nucl. Fusion 47 S668). The beta value reached 5% and a high-beta state beyond 4.5% from the diamagnetic measurement has been maintained for longer than 100 times the energy confinement time. The density and temperature regimes have also been extended. The central density has exceeded 1 × 10~(21) m~(-3) due to the formation of an internal diffusion barrier. The ion temperature has reached 5.2 keV at the density of 1.6 × 10~(19) m~(-3), which is associated with the suppression of ion heat conduction loss. Although these parameters have been obtained in separated discharges, each fusion-reactor relevant parameter has elucidated the potential of net-current free heliotron plasmas. Diversified studies in recent LHD experiments are reviewed in this paper.
机译:自2006年在成都举行的上一届聚变能大会以来,大型螺旋装置(LHD)的净电流自由等离子体的物理参数取得了显着进展(Motojima等人,2007 Nucl。Fusion 47 S668)。 β值达到5%,抗磁测量中超过4.5%的高β态被维持了超过能量限制时间100倍以上。密度和温度范围也得到了扩展。由于内部扩散势垒的形成,中心密度已超过1×10〜(21)m〜(-3)。离子温度以1.6×10〜(19)m〜(-3)的密度达到5.2 keV,这与抑制离子导热损失有关。尽管这些参数是在单独的放电中获得的,但每个与聚变反应器相关的参数都阐明了净电流自由氦电等离子体的潜力。本文综述了近期LHD实验中的各种研究。

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