Thermal quench in ITER locked mode disruptions

Strauss, H.

doi:10.1063/5.0052795

Thermal quench in ITER locked mode disruptions

Journal Article · Mon Jul 19 00:00:00 EDT 2021 · Physics of Plasmas

DOI:https://doi.org/10.1063/5.0052795· OSTI ID:1807663

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HRS Fusion, West Organge, NJ (United States); HRS Fusion

Simulations and theory are presented of an ITER locked mode thermal quench(TQ). In present experiments, locked mode disruptions have a long precursor phase,followed by a rapid termination and thermal quench, which can be identified with a resistive wall tearing mode (RWTM). In ITER, the RWTM will be slowed by the highly conductive vacuum vessel. Here, the rapid termination might be absent, and the plasma could remain in the precursor phase. If the edge temperature is in the collisional regime, the TQ would proceed on a long timescale, limited by the RWTM to almost100ms. This is an important self mitigating effect.

View Accepted Manuscript (DOE)

Research Organization:: HRS Fusion, West Organge, NJ (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: SC0020127

OSTI ID:: 1807663

Alternate ID(s):: OSTI ID: 1808626

Journal Information:: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 7 Vol. 28; ISSN 1070-664X

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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