24th IAEA Fusion Energy Conference - IAEA CN-197

PD/1-2: Initial Snowflake Divertor Physics Studies on DIII-D

12 Oct 2012, 14:00

4h 45m

Poster Room (Area F-B)

Poster Poster: P8

Speaker

Mr S. Allen (USA)

Description

Recent DIII-D results using the snowflake divertor configuration [1] show significantly reduced (a) inter-ELM peak heat flux (Fig. 1) and (b) energy loss per edge localized mode (ELM) without pedestal pressure reduction (Fig. 2). This supports the snowflake configuration as a promising technique for divertor heat load mitigation in present and future high-power magnetic confinement devices.