Consistency and Precison of TCV Magnetic Measurements
The TCV tokamak has been built to study the influence of the plasma shape on tokamak physics. Possible shapes include limited and open single null or double null divertor configurations with an elongation up to 3, and more complex configurations. The magnetic measurements must permit a flexible control of the plasma contour and the divertor legs in all these situations. These measurements are used for both real time control and off line reconstruction of the magnetic topology which require high accuracy and high redundancy. In the work presented here the redundancy was used in conjunction with dedicated measurements to check the consistency of the measurements, quantify their accuracy and then determine corrections in the sensor location and in the measurement calibration. These corrections have permitted considerable improvments in the consistency and precision.
Bibliographic Reference: Article: Proceedings of the 22nd EPS Conference on Controlled Fusion and Plasma Physics, Vol. 19C (1995), PP. I417-I420
Record Number: 199610066 / Last updated on: 1996-02-16
Original language: en
Available languages: en