Island divertor configuration design for a quasi-axisymmetric stellarator CFQS
S. Okamura, Haifeng Liu, A. Shimizu, Shigeyoshi Kinoshita, M. Isobe, Guozhen Xiong, Yuhong Xu
Abstract
A magnetic field configuration of an island divertor for a quasi-axisymmetric stellarator (CFQS) is proposed. The configuration incorporates large islands surrounding the core confinement region. The interface between the core region and the peripheral region of the island divertor is a clear magnetic separatrix similar to a tokamak divertor. The structure of divertor magnetic field lines is very regular without stochasticity and the connection length is sufficiently long for good divertor performance. Such a divertor configuration is produced in the magnetic field configuration for the CFQS device, which is now under construction in China.
Topics & Concepts
DivertorStellaratorPhysicsTokamakField lineMagnetic fieldPlasmaCore (optical fiber)Atomic physicsNuclear physicsOpticsQuantum mechanicsMagnetic confinement fusion researchSuperconducting Materials and ApplicationsIonosphere and magnetosphere dynamics