Solar Physics Division Meeting 2000, June 19-22
Session 2. Corona, Solar Wind, Flares, CMEs, Solar-stellar, Instrumentation, Other
Display, Chair: J. Krall, Monday-Thursday, June 19, 2000, 8:00am-6:00pm, Forum Ballroom

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[2.109] First Results from the Big Bear Solar Observatory's Digital Vectormagnetograph

T. J. Spirock, C. Denker, H. Chen, J. Qui, P. R. Goode, H. Wang (Big Bear Solar Observatory)

During the past three years, the Big Bear Solar Observatory has begun an aggressive program to upgrade the observatory's instrumentation. In the forefront of this effort is the development of a highly sensitive, high cadence, filter based, digital vector magnetograph for the observatory's 10" vacuum-refractor to replace the old video magnetograph to improve our measurements of the FeI line at 6301A. The hardware is being replaced by a 512 x 512, 12-bit, 30 frames per second CCD camera and high quality polarization optics. In addition, software tools are being written to aid instrument development by quickly evaluating images (bias, cross talk, etc.) and to generate near real-time vector magnetograms, which will aid space weather forecasting and the support of space weather missions. Data acquisition, data calibration and flat fielding methods will be discussed and quiet sun and active region magnetograms will be presented.

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