Mitigation of adverse environmental effects on lunar-based astronomical instrumentsThe galactic cosmic-ray flux incident on the moon was examined for its potential adverse impact on the performance of the large lunar telescope (LLT) proposed as a part of NASA's Space Exploration Initiative (SEI). Noise produced by the cosmic-ray flux in the charge coupled devices to be used as the primary photodetector in the telescope was estimated. It was calculated that approximately 2.5 m of regolith would provide the shielding necessary to reduce the noise to an acceptable level. Dust is an omnipresent environmental concern for any human-assisted or robotic scientific instruments deployed on the moon. The degree to which dust poses an operational risk to the telescope was examined. Three potential methods for reducing this risk were identified: locating scientific instruments at remote locations; utilizing a prepared, dust-free site for all rocket activities; and covering the optics during high-risk times.
Johnson, Charles L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Dietz, Kurtis L. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Armstrong, T. W. (NASA Marshall Space Flight Center Huntsville, AL, United States)
Colborn, B. L. (Science Applications International Corp. Prospect, TN, United States)
August 16, 2013
January 1, 1992
Publication: In: Engineering, construction, and operations in space III: Space '92; Proceedings of the 3rd International Conference, Denver, CO, May 31-June 4, 1992. Vol. 2 (A93-41976 17-12)
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IDRelationTitle19930057979Collected WorksEngineering, Construction, and Operations in Space III