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Sensitivity of ITER ECRH Upper Launcher to Steering Errors and Changes of Profiles and Integration with Equatorial Launcher

Francesco Volpe

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The influence of steering errors on Neoclassical Tearing Mode Control by means of the ITER ECRH Upper Launcher is numerically and statistically studied and recommendations are given for the alignment. Changes of density and temperature profiles are shown to have a negligible effect on the launch angles and to affect the driven current according to a well known scaling of current drive efficiency. Finally, a study of the radial positions accessible by the Upper and Equatorial Launchers is presented.


PACS

52.55.Fa Tokamaks, spherical tokamaks

28.52.Cx Fueling, heating and ignition

52.55.Wq Current drive; helicity injection

52.50.Sw Plasma heating by microwaves; ECR, LH, collisional heating

Subjects

Nuclear physics

Plasma physics

Dates

Issue 1 (2005)



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