Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aipc..433..511l&link_type=abstract
Workshop on observing giant cosmic ray air showers from >1020 eV particles from space. AIP Conference Proceedings, Volume 433, p
Astronomy and Astrophysics
Astronomy
Polymers And Organics, Astronomical And Space-Research Instrumentation
Scientific paper
Optical quality polymers normally incorporate functional groups that provide physical integrity that are incompatible with deep UV radiation. Groups like the phenyl ring found in polystyrene (PS) increase the refractive index of the polymer, provide a bulky group that inhibits crystallization rendering the material amorphous, and adds impact strength to the polymer by coupling vibrations of the ring into fracture mechanisms. However these groups also absorb UV light at wavelengths starting at about 330 nm or longer repressing ultra-violet transparency. Our search for a polymer with properties similar to polystyrene or poly(methylmethacrylate) but with better ultraviolet transparency led us to study poly(methylpentene) as a potential lens material candidate.
Burleson Elizabeth
Dimmock John
Hillman Lloyd W.
Lamb David John
Leslie Thomas M.
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