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	Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping
	J. Horacek2; S. Lukes3; J. Adamek2; J. Havlicek2; S. Entler2; J. Seidl2; J. Cavalier2; J. Cikhardt2; V. Sedmidubsky4
刊名	Scientific Reports
卷号	12
ISSN号	2045-2322
英文摘要	One of the remaining challenges in magnetic thermonuclear fusion is survival of the heat shield protecting the tokamak reactor vessel against excessive plasma heat fluxes. Unmitigated high confinement edge localized mode (ELM) is a regular heat pulse damaging the heat shield. We suggest a novel concept of magnetic sweeping of the plasma contact strike point fast and far enough in order to spread this heat pulse. We demonstrate feasibility of a dedicated copper coil in a resonant circuit, including the induced currents and power electronics. We predict the DEMO ELM properties, simulate heat conduction, 3D particles motion and magnetic fields of the plasma and coil in COMSOL Multiphysics and Matlab. The dominant system parameter is voltage, feasible 18kV yields 1kHz sweeping frequency, suppressing the ELM-induced surface temperature rise by a factor of 3. Multiplied by other known mitigation concepts, ELMs might be mitigated enough to ensure safe operation of DEMO.
语种	英语
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128913]
专题	中国科学院合肥物质科学研究院
作者单位	1.FEL, Czech Technical University 2.中国科学院等离子体物理研究所 3.FNSPE, Czech Technical University 4.ETH
推荐引用方式 GB/T 7714	J. Horacek,S. Lukes,J. Adamek,et al. Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping[J]. Scientific Reports,12.
APA	J. Horacek.,S. Lukes.,J. Adamek.,J. Havlicek.,S. Entler.,...&V. Sedmidubsky.
MLA	J. Horacek,et al."Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping".Scientific Reports 12

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