One of the systems envisaged for measuring the current density profile in the ITER is a 118 μm poloidal polarimeter system. The proposed system has two independent views: one fan of chords observes the plasma via an equatorial port and a second fan views down from an upper port. This article will present the status of the on-going work and will address issues as sensitivity and accuracy, refraction, Gaussian beam ray-tracing, alignment, and calibration as well as some specific design details. © 2004 American Institute of Physics.
All Science Journal Classification (ASJC) codes
Donné, A. J. H., Graswinckel, M. F., Cavinato, M., Giudicotti, L., Zilli, E., Gil, C., ... Walker, C. (2004). Poloidal polarimeter for current density measurements in ITER. Review of Scientific Instruments, 75(11), 4694 - 4701. https://doi.org/10.1063/1.1804372