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Study of Optimum Conditions for the V-Shaped Target of a Gas Divertor

S. Tanaka, T. Iijima, A. Tonegawa, K. Kawamura, K. N. Sato

Fusion Science and Technology / Volume 63 / Number 1T / May 2013 / Pages 420-422

Experimental simulation of a V-shaped target for a gas divertor via detached plasma formation is presented using a linear divertor plasma simulator, TPD-Sheet IV. Three geometries of the opposite plate on the V-shaped target were investigated with variation of the contact gas flow rate. The ionization and recombination events are discussed for each target configuration using the collisional-radiative (CR) model. The results expect that a gas divertor with a V-shaped target effectively enhances plasma recycling and detachment.

 
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