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- Original title:
- Non-linear simulations of the interaction of pre-existing magnetic islands in tokamak plasmas with massive deuterium injection for disruption mitigation
- Translated title:
- Nichtlineare Simulationen der Wechselwirkung von bereits bestehender magnetischen Inseln in Tokamak-Plasmen mit massiver Deuterium-Injektion zur Disruptions-Mitigation
- Author:
- Wieschollek, Fabian
- Year:
- 2023
- Document type:
- Dissertation
- Faculty/School:
- TUM School of Natural Sciences
- Advisor:
- Günter, Sibylle (Prof. Dr.)
- Referee:
- Günter, Sibylle (Prof. Dr.); Futatani, Shimpei (Prof. Dr.)
- Language:
- en
- Subject group:
- PHY Physik
- TUM classification:
- PHY 000
- Abstract:
- Shattered Pellet Injection (SPI) is the approach for disruption mitigation selected for ITER. Deuterium-SPI could help to reduce the generation of runaway electrons. However, when injected during the disruption onset phase, it may interact with pre-existing MHD activity, namely the 2/1 tearing mode. In this thesis, magneto-hydrodynamic simulations are performed to analyze these interactions based on an ASDEX Upgrade plasma. Several parameter scans were performed to deepen the understanding.
- Translated abstract:
- Shattered Pellet Injection (SPI) ist das für ITER gewählte Konzept zur Disruption-Mitigation. Deuterium-SPI könnte dazu beitragen, die Erzeugung von Runaway-Elektronen zu reduzieren. Wird es jedoch während der Disruptionsanfangshase injiziert, kann es mit der bereits bestehender MHD-Aktivität interagieren, vor allem der 2/1-Tearing-Mode. In dieser Arbeit werden magnetohydrodynamische Simulationen durchgeführt, um diese Wechselwirkungen anhand eines ASDEX Upgrade-Plasmas zu analysieren.
- WWW:
- https://mediatum.ub.tum.de/?id=1696387
- Date of submission:
- 03.04.2023
- Oral examination:
- 30.10.2023
- File size:
- 34460997 bytes
- Pages:
- 108
- Urn (citeable URL):
- https://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:91-diss-20231030-1696387-1-0
- Last change:
- 01.12.2023
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