| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1825911 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2010 | 4 Pages |
Abstract
The measurement of the safety factor q in tokamaks, which describes the winding of the helical magnetic field lines, is very important especially for the achievement of advanced scenarios. The motional Stark effect diagnostic can provide a direct measurement of the magnetic field orientation but the derivation of the q-profiles requires a simulation of the magnetic equilibrium taking into account inputs from several other diagnostics. This analysis can be affected by large errors. In order to validate the results, q-profiles are compared with the radii of MHD modes, which can be attributed to surfaces of known q.
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
R. De Angelis, M. Baruzzo, P. Buratti, B. Alper, L. Barrera, A. Botrugno, M. Brix, L. Figini, A. Fonseca, C. Giroud, N. Hawkes, D. Howell, E. De La Luna, F. Orsitto, V. Pericoli, E. Rachlew, O. Tudisco,