Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996spie.2808..108b&link_type=abstract
Proc. SPIE Vol. 2808, p. 108-119, EUV, X-Ray, and Gamma-Ray Instrumentation for Astronomy VII, Oswald H. Siegmund; Mark A. Gummi
Astronomy and Astrophysics
Astronomy
2
Scientific paper
The AXAF-HRC UV/ion shields have to provide high UV rejection from diffuse background and bright UV sources (e.g. rejection greater than 10(superscript 7) at wavelength longer than approximately 300 angstrom for the HRC-I). In the framework of the AXAF-HRC calibration program we have conducted UV (300 - 2500 angstrom) and FUV/visible (1900 - 10,000 angstrom) transmission measurements on the baseline design UV/ion shields based on Lexan and aluminum. The results of these measurements, here reported, have shown that the baseline design UV/ion shields did not meet the scientific requirements of UV opacity and as a consequence, the UV/ion shields were redesigned. UV tests of new UV/ion shields, based on new materials, is in progress.
Barbera Marco
Collura Alfonso
Dara Alessandro
Serio Salvatore
Zombeck Martin V.
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