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In a world increasingly facing new challenges at the forefront of plasma scientific research and technological innovation, CNR and ISTP pledge progress and achieve an impact in the integration of research into societal practices and policy

Modeling snowflake plasmas in RFX-mod2: A test bed for SOL and edge physics characterization

Abate D.; Predebon I.; Bonotto M.; Marchiori G.

The definition of low-current snowflake plasma equilibria in RFX-mod2 experiment is carried out in terms of both plasma conditions and engineering requirements. The snowflake magnetic configuration is obtained by solving a least-squares curve fitting problem with properly defined linear contraints. Positive and negative triangularity snowflake equilibria are defined and compared with a standard single-null plasma. The magnetic field topology is characterized in terms of local magnetic shear and connection length revealing all the potential advantages of a wider low poloidal field region. The RFX-mod2 improved diagnostic system and its magnet flexibility would allow a detailed characterization of the scrape off layer and plasma edge physics in snowflake configurations.

ID 478208
DOI 10.1016/j.fusengdes.2023.113484
PRODUCT TYPE Journal Article
LAST UPDATE 2023-06-20T17:45:44Z
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