1 September 1991 A star-and-sky chopping polarimeter: design and performance
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Optical Engineering, 30(9), (1991). doi:10.1117/12.55935
We have developed a star-and-sky chopping polarimeter for accurate measurements of linear polarization of starlight in the standard astronomical photometric U, B, V, R, and I bands. The instrumental polarization, as determined by observing the standard unpolarized stars, is 0.04%. It is possible to use the instrument for the measurements of circular polarization as well. A UNICORN microcomputer controls the various operations of the instrument, acquires the data, and does the on-line data reduction. This paper describes the design and performance of the polarimeter.
Surendra K. Jain, G. Srinivasulu, "A star-and-sky chopping polarimeter: design and performance," Optical Engineering 30(9), (1 September 1991). https://doi.org/10.1117/12.55935

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