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Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F22%3A00565859" target="_blank" >RIV/61389021:_____/22:00565859 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21230/22:00360945 RIV/68407700:21340/22:00360945

  • Result on the web

    <a href="https://www.nature.com/articles/s41598-022-18748-x" target="_blank" >https://www.nature.com/articles/s41598-022-18748-x</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1038/s41598-022-18748-x" target="_blank" >10.1038/s41598-022-18748-x</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Novel concept suppressing plasma heat pulses in a tokamak by fast divertor sweeping

  • Original language description

    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 18 kV yields 1 kHz 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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10305 - Fluids and plasma physics (including surface physics)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2022

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Scientific Reports

  • ISSN

    2045-2322

  • e-ISSN

    2045-2322

  • Volume of the periodical

    12

  • Issue of the periodical within the volume

    1

  • Country of publishing house

    DE - GERMANY

  • Number of pages

    12

  • Pages from-to

    17013

  • UT code for WoS article

    000866180700032

  • EID of the result in the Scopus database

    2-s2.0-85139625881