ALPS–advanced limiter-divertor plasma-facing systems
نویسندگان
چکیده
منابع مشابه
Local magnetic divertor for control of the plasma-limiter interaction in a tokamak
An experiment is described in which plasma flow to a tokamak limiter is controlled through the use of a local toroidal divertor coil mounted inside the limiter itself. This coil produces a local perturbed field Be approximately equal to the local unperturbed toroidal field B r ~ 3 kG, such that when Be adds to Br the field lines move into the limiter and the local plasma flow to it increases by...
متن کاملOn the difference of H-mode power threshold in divertor and limiter tokamaks
The difference in the H-mode power threshold in divertor and limiter configurations is numerically investigated by analysing the effect of boundary conditions imposed on the last closed magnetic surface (LCMS) and given by prescribed density and temperature e-folding lengths, δn and δT , respectively. It is demonstrated that the variation of δn and δT significantly affects the H-mode power thre...
متن کاملEVALUATION OF LIQUID METflL PROTECTION OF A LIMITER/DIVERTOR IN FUSION REACTORS*
The liquid metal protection concept is proposed mainly to prolong the lifetime of a divertor or a limiter in a fusion reactor. This attractive idea for protection requires studying a wide range of problems associated with the use of liquid-metals in fusion reactors. In this work the protection by liquidmetals has concentrated on predictions of the loss rate of the film to the plasma, the operat...
متن کاملX. Impurity Control and Materials Physics
The design for the BPX power and particle handling system consists of a double-null (DN) poloidal divertor with an inner-wall bumper limiter. In addition, a substantial portion of the remainder of the inside of the torus is covered with graphite tiles to withstand high heat flux. In divertor operating modes, the diverted plasma is “swept” across the divertor plates to reduce the time-average he...
متن کاملModeling plasma-wall interactions in First Wall-Limiter geometry
We test the standard edge plasma code B2-solps5.0 on a model First-Wall Limiter (FWL) geometry. The presence of a tangency point between the solid wall and the magnetic separatrix introduces a singular point in the geometry. A quadrilateral computational mesh can fit the given configuration only if it is highly distorted, constituting a severe test for any numerical scheme. The original 5-point...
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ژورنال
عنوان ژورنال: Fusion Engineering and Design
سال: 2000
ISSN: 0920-3796
DOI: 10.1016/s0920-3796(00)00385-9