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Fusion Science and Technology
Latest News
Securing the advanced reactor fleet
Physical protection accounts for a significant portion of a nuclear power plant’s operational costs. As the U.S. moves toward smaller and safer advanced reactors, similar protection strategies could prove cost prohibitive. For tomorrow’s small modular reactors and microreactors, security costs must remain appropriate to the size of the reactor for economical operation.
Sante Cirant, Gabriele D'Antona, Enzo Lazzaro, Gabriella Ramponi
Fusion Science and Technology | Volume 31 | Number 3 | May 1997 | Pages 338-349
Technical Paper | Plasma Engineering | doi.org/10.13182/FST97-A30837
Articles are hosted by Taylor and Francis Online.
The design of a feedback system based on the application of electron cyclotron (EC) current drive in high-density tokamak plasmas is presented. A realistic evaluation is given of the current drive produced by high-power gyrotron tubes for EC-wave beams injected from the low field side in the O-mode polarization. The driven current, calculated using a relativistic analytical formalism along the ray trajectories, is inserted in a consistent theory of nonlinear tearing-mode evolution. Results of modeling calculations are presented, showing the possibility of controlling by means of a digital system the evolution of the width of rotating magnetic perturbations by phase-locked modulation of the gyrotron power source.