Pedestal magnetic field measurements using a motional Stark effect polarimeter.

نویسندگان

  • M J Lanctot
  • C T Holcomb
  • S L Allen
  • M E Fenstermacher
  • T C Luce
چکیده

Temperature-controlled, 0.15 nm interference filters were installed on an edge-viewing system of the motional Stark effect (MSE) polarimeter on the DIII-D tokamak. The upgraded system provides a factor of two reduction in the bandpass compared to the previous design, and linear control of the bandpass, which is unaltered by wavelength tuning. With the new system, there is a reduced dependence of the inferred polarization angle on the filter wavelength calibration. Recent measurements from the calibrated edge-viewing system show increased agreement with other MSE arrays.

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عنوان ژورنال:
  • The Review of scientific instruments

دوره 83 10  شماره 

صفحات  -

تاریخ انتشار 2012