Pressure balance between midplane and inner and outer divertor in ASDEX Upgrade H-mode discharges
نویسندگان
چکیده
منابع مشابه
Confinement enhancement in ASDEX Upgrade improved H-mode discharges with nitrogen seeding
1 Introduction Tungsten has been studied for 10 years on ASDEX Upgrade as a possible first wall material for fusion reactors [1]. The feasibility and the performance of the advanced scenarios are assessed, in order to deal with the technological challenges of a burning plasma. In particular hybrid scenarios, such as ASDEX Upgrade's improved H-mode discharges, require high heating power, a chall...
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-: In 1993 there were indications that the C-Mod inner divertor was being over-loaded[3] . As a result, an inner divertor modification is being installed in C-Mod. The new design is intended to allow a change in profile of the divertor to accommodate a higher plasma triangularity , strengthen the inner vessel wall to survive 9.0 Tesla, 2.5 MA disruptions and, eliminate tile rotation. The therma...
متن کاملGlobal electromagnetic simulations of the outer core of an ASDEX Upgrade L-mode plasma
The outer core of a low confinement discharge performed at the ASDEX Upgrade tokamak is investigated using both global and local nonlinear gyrokinetic simulations. Previous work [D. Told et al., Phys. Plasmas 20, 122312 (2013)] had shown that local gyrokinetic simulations agree reasonably well with experimental results in terms of transport levels, with minor discrepancies that can be resolved ...
متن کاملInduced tungsten melting events in the divertor of ASDEX Upgrade and their influence on plasma performance
Tungsten rods of 1×1×3mm were exposed at the outer divertor plate of ASDEX Upgrade using a manipulator system. Controlled melting of the W rod in H-mode discharges was induced by moving the outer strike point towards the W-rod position. Visible light emission of ejected W droplets was recorded by fast camera systems. The resulting increase of tungsten concentration in the confined plasma was co...
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ژورنال
عنوان ژورنال: Journal of Nuclear Materials
سال: 2009
ISSN: 0022-3115
DOI: 10.1016/j.jnucmat.2009.01.109