Disruption mitigation on Alcator C-Mod using high-pressure gas injection: Experiments and modeling toward ITER
作者： D.G. Whyte , R. Granetz , M. Bakhtiari , V. Izzo , T. Jernigan
DOI: 10.1016/J.JNUCMAT.2007.01.149
关键词: Alcator C-Mod 、 Magnetohydrodynamics 、 Plasma 、 Nuclear physics 、 Nimrod 、 Current (fluid) 、 Radiant energy 、 Nuclear engineering 、 Dissipation 、 Thermal 、 Chemistry
摘要: High-pressure gas-jet injection disruption mitigation is investigated on Alcator C-Mod. The experimental results are encouraging for ITER. Gas-jets delivers reliable and substantial of thermal loads halo currents at the ITER field pressure. gas compatible with a metallic wall. gas-jets provide sufficient radiative energy dissipation timescale even faster than required Runaway electrons suppressed, however better understanding this suppression still Present 0-D calculations delivery global plasma response match important data such as overall quench time current L/R time. Frictional may be down long tubes that will probably However deep and/or impurity penetration not mitigation, relieving technical requirements pressure in Initial studies non-ideal MHD simulation NIMROD show radiation-induced plays critical role particle dynamics. application newly available version NIMROD, more complete atomic physics, shows promise matching trends could an invaluable tool increasing our confidence designing efficient
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