Physics – Optics
Scientific paper
Aug 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002apopt..41.4680h&link_type=abstract
Applied Optics, vol. 41, iss. no. 22, p. 4680-4685
Physics
Optics
1
Calibrating, Cosmic Plasma, High Temperature Plasmas, Light Transmission, Optical Filters, Spaceborne Telescopes, Telescopes, Thin Films, Ultraviolet Filters, Ultraviolet Spectrometers
Scientific paper
The design and calibration of thin-film Zr transmission filters for the Cosmic Hot Interstellar Plasma Spectrometer (CHIPS) spaceborne astronomical telescope is presented. The transmission of a 1000-A-thick Zr filter is measured for wavelengths from 45 to 1304 A as well as its variability with respect to expected space-flight environmental extremes of temperature, vibration, and atomic O bombardment. For the CHIPS spectral band of 90-260 A, the transmission of the Zr filter is deemed useful between 90 and 200 A and is stable with respect to expected temperature and vibrational changes. The maximum atomic O bombardment decreases the filter transmission between 90 and 130 A by approx20% and does not appreciably affect the rest of the CHIPS bandpass. These results make Zr an acceptable filter candidate for CHIPS.
Hemphill Richelieu
Hurwitz Mark
Pelizzo Maria Guglielmina
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