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Proceedings Paper

Polarization measurements on SUMI's TVLS gratings
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Paper Abstract

We present measurements of toroidal variable-line-space (TVLS) gratings for the Solar Ultraviolet Magnetograph Investigation (SUMI), currently being developed at the National Space Science and Technology Center (NSSTC). SUMI is a spectro-polarimeter designed to measure magnetic fields in the solar chromosphere by observing two UV emission lines sensitive to magnetic fields, the CIV line at 155nm and the MgII line at 280nm. The instrument uses a pair of TVLS gratings, to observe both linear polarizations simultaneously. Efficiency measurements were done on bare aluminum gratings and aluminum/MgF2 coated gratings, at both linear polarizations.

Paper Details

Date Published: 13 September 2007
PDF: 12 pages
Proc. SPIE 6682, Polarization Science and Remote Sensing III, 66820W (13 September 2007); doi: 10.1117/12.731870
Show Author Affiliations
K. Kobayashi, NASA Marshall Space Flight Ctr. (United States)
E. A. West, NASA Marshall Space Flight Ctr. (United States)
J. M. Davis, NASA Marshall Space Flight Ctr. (United States)
G. A. Gary, NASA Marshall Space Flight Ctr. (United States)


Published in SPIE Proceedings Vol. 6682:
Polarization Science and Remote Sensing III
Joseph A. Shaw; J. Scott Tyo, Editor(s)

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