Abstract
HL-2M is a new medium-sized copper-conductor tokamak and is currently under construction. The SOLPS-ITER code package is applied to explore the operation range and the basic behaviors of the divertor plasma in the first phase. With scanning edge plasma densities, detailed modeling is carried out to study power load, electron and ion temperature, and electron and neutral density on the target plates. The simulation results indicate that a necessary technology should be taken into account for reducing peak heat load on the target. As an effective way, neon seeding at the divertor dome is adopted to reduce the heat load, and the modeling demonstrates that the power load could be controlled. The simulation shows the maximum heat flux is significantly reduced even at a relatively low edge density. Meanwhile, the HL-2M divertor can be operated in a partial detached regime.
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