HR: 1330h
AN: SP43A-04    [Abstracts]
TI: Calibration and Tesing of the Tunable Filter on Solar B
AU: * Shine, R A
EM: shine@lmsal.com
AF: Lockheed Martin Advanced Technology Center, O/ADBS, B/252 3251 Hanover Street, Palo Alto, CA 94304 United States
AU: Title, A M
AF: Lockheed Martin Advanced Technology Center, O/ADBS, B/252 3251 Hanover Street, Palo Alto, CA 94304 United States
AU: Tarbell, T D
AF: Lockheed Martin Advanced Technology Center, O/ADBS, B/252 3251 Hanover Street, Palo Alto, CA 94304 United States
AU: Mitchell, K
AF: Lockheed Martin Advanced Technology Center, O/ADBS, B/252 3251 Hanover Street, Palo Alto, CA 94304 United States
AU: Tavarez, L
AF: Lockheed Martin Advanced Technology Center, O/ADBS, B/252 3251 Hanover Street, Palo Alto, CA 94304 United States
AU: Rosenberg, W
AF: Lockheed Martin Advanced Technology Center, O/ADBS, B/252 3251 Hanover Street, Palo Alto, CA 94304 United States
AB: The tunable filter in the Focal Plane Package (FPP) on the Japanese Solar B satellite, scheduled for launch in August 2006, was designed, built, and tested at the Lockheed Martin Advanced Technology Center (LMATC). It is an eight element wide field calcite filter (an improved Lyot type) with a spectral resolution of about 100mÅ and a tuning range of 11.87Å at 6302Å. Using 6 prefilters, it operates in bands covering the 5172Å Fe I, 5250Å Fe I, 5576Å Fe I, 5896Å Na I, 6302Å Fe I, and 6563Å H I lines. Here we describe the testing and calibrations used to determine the tuning parameters as functions of temperature and wavelength for the six bands. We also measure performance using sunlight and laser sources in a standalone mode and integrated into the FPP package. Images and derived magnetograms and Dopplergrams using a low resolution solar image have also been obtained while attached to the Solar B telescope and using a heliostat at the LMATC in Palo Alto. In the course of this work we have also refined the mathematical description for these types of filters, especially the error terms that arise from residual misalignments. In particular, we now believe we understand the intensity oscillations seen in this and earlier Lyot tunable filters.
DE: 7594 Instruments and techniques
SC: Solar Physics Division - AAS [SP]
MN: 2005 Joint Assembly