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首页> 外文期刊>Plasma Science & Technology >Development of a helicon-wave excited plasma facility with high magnetic field for plasma-wall interactions studies
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Development of a helicon-wave excited plasma facility with high magnetic field for plasma-wall interactions studies

机译:具有高磁场的Helicon-Wave激发等离子体设施,用于等离子体壁相互作用研究

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The high magnetic field helicon experiment system is a helicon wave plasma (HWP) source device in a high axial magnetic field (B-0) developed for plasma-wall interactions studies for fusion reactors. This HWP was realized at low pressure (5 x 10(-3) - 10 Pa) and a RF (radio frequency, 13.56 MHz) power (maximum power of 2 kW) using an internal right helical antenna (5 cm in diameter by 18 cm long) with a maximum B-0 of 6300 G. Ar HWP with electron density similar to 10(18) -10(20) m(-3) and electron temperature similar to 4-7 eV was produced at high B-0 of 5100 G, with an RF power of 1500 W. Maximum Ar+ ion flux of 7.8 x 10(23) m(-2) s(-1) with a bright blue core plasma was obtained at a high B-0 of 2700 G and an RF power of 1500W without bias. Plasma energy and mass spectrometer studies indicate that Ar+ ion-beams of 40.1 eV are formed, which are supersonic (similar to 3.1c(s)). The effect of Ar HWP discharge cleaning on the wall conditioning are investigated by using the mass spectrometry. And the consequent plasma parameters will result in favorable wall conditioning with a removal rate of 1.1 x 10(24) N-2/m(2)h.
机译:高磁场Helicon实验系统是为融合反应器的等离子体壁相互作用研究开发的高轴磁场(B-0)中的Helicon波等离子体(HWP)源装置。使用内部右螺旋天线(直径为5厘米的直径为18℃)的低压(射频,13.56MHz)电源(射频,13.56MHz)功率(13.56 MHz)电源(最大功率为2 kW),实现该HWP(射频,直径5厘米) CM长)最大B-0的6300 G. AR HWP,电子密度类似于10(18)-10(20)m(-3),并且在高B-0中产生类似于4-7eV的电子温度在5100g中,RF功率为1500W。在2700g的高B-0的高B-0中获得7.8×10(23)毫升(-2)S(-2)S(-1)的最大Ar +离子通量。并且没有偏见的1500W的RF功率。等离子体能量和质谱仪研究表明形成40.1eV的AR +离子束,其是超音速的(类似于3.1℃)。通过使用质谱法研究了Ar HWP放电清洁对壁调节的影响。因此,随后的等离子体参数将导致墙壁调理有利,除去速率为1.1×10(24)n-2 / m(2)小时。

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