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D. Rapisarda, B. Zurro, V. Tribaldos, A. Baciero, TJ-II Team
Fusion Science and Technology | Volume 50 | Number 2 | August 2006 | Pages 320-325
Technical Paper | Stellarators | dx.doi.org/10.13182/FST06-A1253
Articles are hosted by Taylor and Francis Online.
A local model capable of simulating the cord-integrated emission of spectral lines in the TJ-II stellarator has been developed for inferring local parameters. The procedure was implemented on a numerical code, which starting from given analytical profiles of local emissivity, ion temperature, and toroidal rotation calculates the cord-integrated emission spectra along a selected line of sight. Additionally, the procedure is capable of simulating the toroidal and poloidal velocity contributions for a selected spectral line taking into account TJ-II magnetic topology. Results show good agreement between measurements and numerical simulations for the integrated intensity and ion temperature, and a consistent integrated toroidal rotation velocity, which depends on the emissivity profile.