Abstract
Abstract The snowflake divertor (SFD) control and detachment control to manage the heat flux at the divertor are successfully demonstrated at DIII-D. Results of the development and implementation of these two heat flux reduction control methods are presented. The SFD control algorithm calculates the position of the two null-points in real-time and controls shaping coil currents to achieve and stabilize various snowflake configurations. Detachment control stabilizes the detachment front fixed at specified distance between the strike point and the X-point throughout the shot.
Original language | English |
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Article number | 48693 |
Pages (from-to) | 1186-1190 |
Number of pages | 5 |
Journal | Journal of Nuclear Materials |
Volume | 463 |
DOIs | |
State | Published - Jul 22 2015 |
Funding
This work was supported in part by the US Department of Energy under DE-AC02-09CH11466 , DE-AC52-07NA27344 , DE-FC02-04ER54698 , and DE-AC05-00OR22725 . DIII-D data shown in this paper can be obtained in digital format by following the links at https://fusion.gat.com/global/D3D_DMP .