DIII-D RESEARCH OPPORTUNITIES FORUM FOR THE 2013 EXPERIMENTAL CAMPAIGN Review | Direct submission with log-in | Request submission without log-in
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Title	263: Radiative divertor solutions in the ITER baseline scenario
Name:	Timothy Luce tim.luce@iter.org	Affiliation:	ITER Organization
Research Area:	Inductive Scenarios	Presentation time:	Not requested
Co-Author(s):		ITPA Joint Experiment :	Yes
Description:	The ITER baseline scenario envisions introduction of radiating impurities (e.g., nitrogen, neon, argon) to reduce the amount of power entering the SOL (radiating mantle) and the divertor (radiating divertor). No machine can replicate the conditions of ITER, but the key issues can be explored. These are: accumulation of impurities, impact on the pedestal and global confinement, methods to enter and exit the desired radiating state. This work is a necessary pre-requisite to work on the ITER urgent task of development of detachment control. The experiment should compare directly conditions with no added impurities, trace impurities, and sufficient impurity to reduce the power measured in the divertor to <50% of the total power. The stability of the radiating scheme for all candidate gases should be demonstrated.	ITER IO Urgent Research Task :	Yes
Experimental Approach/Plan:
Background:	This contributes to ITPA joint experiment IOS-1.2.
Resource Requirements:
Diagnostic Requirements:	Need to measure the steady-state and transient heat flux under intrinsic and radiating conditions.
Analysis Requirements:
Other Requirements: