1 December 1975 Analysis and Experimental Measurement of Straylight Suppression Systems for the Large Space Telescope
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Abstract
A major scientific goal of the Large Space Telescope (LST) is to observe very faint astronomical objects. Such observations require extreme attenuation of light entering the end of the telescope from bright objects in the celestial sphere. Operation on the daylight side of the orbit is required, hence portions of the internal structure of the telescope may be illuminated by the earth, moon, or sun. The intensity of light from these sources reaching the focal plane must be small compared to the intensity of the object of interest. A computer program for straylight suppression system design and analysis was developed for MSFC under contract to the University of Arizona Optical Sciences Center. MSFC is using this program to analyze various proposed LST straylight suppression systems. Simultaneously, experimental measurements are being made on a simplified LST straylight suppression system in a unique facility at MSFC. The experimental measurements are being used to verify and improve the computer program. The facility represents the state-of-the-art in straylight suppression measurements, and transmission factors of 10-12 have been measured.
Charles L. Wyman, Donald B. Griner, Gary H. Hunt, Glenn B. Shelton, "Analysis and Experimental Measurement of Straylight Suppression Systems for the Large Space Telescope," Optical Engineering 14(6), 146528 (1 December 1975). https://doi.org/10.1117/12.7971787 . Submission:
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