In Situ Throughput Determination on the Blanco Telescope

Details In Situ Throughput Determination on the Blanco Telescope In Situ Throughput Determination on the Blanco Telescope

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aas...20718009s&link_type=abstract

American Astronomical Society Meeting 207, #180.09; Bulletin of the American Astronomical Society, Vol. 37, p.1460

Astronomy and Astrophysics

Astronomy

Scientific paper

We have used a tunable laser in conjunction with a precision calibrated photodiode to determine the instrumental throughput of the CTIO Blanco 4m telescope. This technique uses monochromatic light projected onto the flat field screen to measure the relative throughput vs. wavelength of the primary, corrector, filters, and detectors, relative to the known QE curve of the photodiode. We will review the technique and present preliminary results. This work is supported by the NSF through AST 0443378 and by the LSST corporation.

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