Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990acaau..21..183l&link_type=abstract
Acta Astronautica (ISSN 0094-5765), vol. 21, March 1990, p. 183-187.
Astronomy and Astrophysics
Astronomy
Moon, Lunar Base, Environment, Space, Colonization, Utilization, Gases, Industrialization, Manufacturing, Technical Aspects, Pressure, Atmosphere, Materials Processing, Contamination, Composition
Scientific paper
Several industrial processes requiring high and ultra-high vacuum similar to the lunar vacuum are outlined. The effects of a 20-person lunar base and a 250-person industrial facility on this vacuum are discussed. It is shown that exhaust from transport spacecraft and leakage from the habitat will be comparable to the daytime gas pressure for the 20-person base, and will degrade the vacuum to the range of 2 x 10 to the -9th torr for the use of 250-person facility. This will result in replacing the mostly nonreactive gases hydrogen, helium, and neon with more reactive gases containing carbon and oxygen. This vacuum is still good enough to perform many important vacuum processes such as plasma-deposition of amorphous silicon for solar cells, but processes such as molecular beam epitaxy or locating an intersecting beam accelerator on the moon will require additional vacuum pumping.
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