Real time control of fully non-inductive operation in Tore Supra leading to 6 min, 1 GJ plasma discharges
The experimental programme of Tore Supra (a=0.72 m, R=2.4 m, I(p) < 1.7 MA, B(T)<4.5 T) has been devoted in 2003 to study simultaneously heat removal capability and particle exhaust in steady-state fully non-inductive current drive discharges. This required both advanced technology integration and steady-state real time plasma control. In particular, an improvement of the plasma position within a few millimetres range, and new real time cross controls between radio frequency (RF) power and various actuators built around a shared memory network, have allowed Tore Supra to access a powerful steady-state regime with an improved safety level for the actively cooled plasma facing components. Feedback controlled fully non-inductive plasma discharges have been sustained in a steady-state regime up to 6 min with a new world record of injected-extracted energy exceeding 1 GJ. Advanced tools, experimental results and brief physics analysis of these discharges are presented and discussed.
Bibliographic Reference: An article published in: Fusion Engineering and Design (2005), Volume 74, Issues 1-4, Pages 651-658
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://www.sciencedirect.com/science/journal/09203796
Record Number: 200719005 / Last updated on: 2007-04-02
Original language: en
Available languages: en