Calibration of Interference Filter Transmission using Light Emitting Diodes

Details Calibration of Interference Filter Transmission using Light Emitting Diodes Calibration of Interference Filter Transmission using Light Emitting Diodes

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...209.9816m&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #98.16; Bulletin of the American Astronomical Society, V

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Accurate calibration of SNAP filter throughput is essential to eliminating systematic error in the dark energy parameters determined by SNIa lightcurve measurements. The calibration of filter transmission in a space-based mission is hampered by the lack of precision color reference sources under space conditions. We propose to use the semi-monochromatic emission of solid state light emitting diodes (LEDs) to provide precise spectral power for broadband filter calibration applications. We describe a method to track global changes in filter transmission using LEDs and detail the throughput differences between bare LEDs and an LED-fed monochromator.

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