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Abstract

One of the systems envisaged for measuring the current density profile in the ITER is a 118 mu m 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.

Additional information

Authors: DONNÉ A J H, FOM-Rijnhuisen, Association EURATOM-FOM, Nieuwegein (NL);GRASWINCKEL M F, FOM-Rijnhuisen, Association EURATOM-FOM, Nieuwegein (NL);CAVINATO M, Associazione Euratom-ENEA sulla Fusione, Consorzio RFX, Padova (IT);GIUDICOTTI L, Associazione Euratom-ENEA sulla Fusione, Consorzio RFX, Padova (IT);ZILLI E, Associazione Euratom-ENEA sulla Fusione, Consorzio RFX, Padova (IT);GIL C, Département de Recherches sur la Fusion Contrôlée, Association Euratom-CEA sur la Fusion, CEA Cadarache, Saint-Paul-lez-Durance (FR);KOSLOWSKI H R, Forschungszentrum Jülich GmbH, Jülich (DE);MCCARTHY P, University College Cork, Cork (IE);NYHAN C, University College Cork, Cork (IE);PRUNTY S, University College Cork, Cork (IE);SPILLANE M, University College Cork, Cork (IE);WALKER C, ITER International Team, Garching (DE)
Bibliographic Reference: An article published in: Review of Scientific Instruments, Volume 75, Issue 11, pp. 4694-4701 (2004)
Availability: This article can be accessed online by subscribers, and can be ordered online by non-subscribers, at: http://dx.doi.org/doi:10.1063/1.1804372
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