Examination of the entry to burn and burn control for the ITER 15 MA baseline and hybrid scenarios. (29th May 2015)

• Record Type: Journal Article
• Authors: Kessel, C.E.; Koechl, F.; Kim, S.H.
• Is Part Of: Nuclear fusion. Volume 55:Number 6(2015:Jun.)
• Publication Date: 2015-05-29
• Subjects: ITER -- tokamak -- integrated simulation -- burn control; Nuclear fusion -- Periodicals; 621.48405
• DOI: 10.1088/0029-5515/55/6/063038
• Languages: English
• ISSNs: 0029-5515

Abstract

Abstract: The entry to burn and flattop burn control in ITER will be a critical need from the first DT experiments. Simulations are used to address time-dependent behaviour under a range of possible conditions that include injected power level, impurity content (W, Ar, Be), density evolution, H-mode regimes, controlled parameter ( W th, P net, P fusion ), and actuator ( P aux, fuelling, f Ar ), with a range of transport models. A number of physics issues at the L–H transition require better understanding to project to ITER, however, simulations indicate viable control with sufficient auxiliary power (up to 73 MW), while lower powers become marginal (as low as 43 MW).