Analysis and improvements of fringe jump corrections by electronics on the JET tokamak far infrared interferometer
- IRFM, CEA, F-13108 Saint-Paul-lez-Durance (France)
- Culham Science Centre, EURATOM-CCFE Fusion Association, Abingdon, Oxon OX14 3DB (United Kingdom)
For the Tore Supra interferometer phase measurements, an electronics had been developed electronics using field programmable gate array processors. The embedded algorithm can correct the fringe jumps. For comparison, the electronics ran at JET during the 2009 campaign. The first analysis concluded that the electronics was not correcting all the fringe jumps. An analysis of the failures led to improvements in the algorithm, which was tested during the rest of the campaign. In this article, we evaluate the increases in the performance. From the analysis of the remaining faults, further improvements are discussed for designing future boards that are foreseen for JET using the second wavelength and the Cotton-Mouton effect information.
- OSTI ID:
- 22058675
- Journal Information:
- Review of Scientific Instruments, Vol. 81, Issue 10; Other Information: (c) 2010 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
- Country of Publication:
- United States
- Language:
- English
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