Computer Science – Performance
Scientific paper
Aug 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993spie.1971..288n&link_type=abstract
Proc. SPIE Vol. 1971, p. 288-303, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing, Moshe O
Computer Science
Performance
2
Scientific paper
The space ultrahigh vacuum environment induces outgassing of spacecraft organic materials which may condense on optical surfaces and degrade the performance of optical systems. Lab simulation outgassing tests show transmission and/or reflection losses of optical components (i.e., optically polished plates and mirrors) measured at the wavelength range of 200 - 800 nm. The losses caused by deposition of outgassed products on the optical surfaces at the amount of 10-6 - X10-4 g/cm2 were measured. The loss mechanism is most likely scattering of light. This experimental data was combined with a computerized ab-initio model which calculated the contamination developed in a simulated preliminary design of the TAUVEX astronomical UV research telescope. This enabled us to estimate the performance of TAUVEX's optical system as a function of mission time, and served as a guideline for selection of materials, cleanliness requirements, thermal conditions and bakeout processes.
Anholt Micha
Baer Michael
Braun Ofer
Lifshitz Yeshayahu
Murat Michael
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