Abstract
I present a method to correct solar magnetograms for a non-uniform detector pattern that depends on the sense of light polarization. The application to Big Bear Solar Observatory magnetograph observations demonstrates that the determination of a flat pattern can be done at an accuracy imposed by the photon noise in the raw magnetograms.
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Chae, J. Flat-Fielding of Solar Magnetograph Observations Using Relatively Shifted Images. Solar Physics 221, 15–21 (2004). https://doi.org/10.1023/B:SOLA.0000033359.96272.ae
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DOI: https://doi.org/10.1023/B:SOLA.0000033359.96272.ae