E. C. da Silva scite author profile

The structure of magnetic field lines in a tokamak with reversed magnetic shear is investigated by means of analytically derived area-preserving non-twist Poincaré maps. The basic configuration is the magnetic field produced by an ergodic limiter, superimposed to the tokamak equilibrium field in suitable coordinates. We consider the cases of one and two resonant modes, focusing on magnetic island dimerization and the formation of a transport barrier in the chaotic layer of field lines.

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E. C. da Silva

Control of chaotic magnetic fields in tokamaks

Transport control in fusion plasmas by changing electric and magnetic field spatial profiles

Non-twist field line mappings for tokamaks with reversed magnetic shear

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