Computer Science – Sound
Scientific paper
Dec 1989
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apopt..28.5073l&link_type=abstract
Applied Optics (ISSN 0003-6935), vol. 28, Dec. 1, 1989, p. 5073-5079.
Computer Science
Sound
1
Background Radiation, Grazing Incidence, Rocket Sounding, Spectral Line Width, Ultraviolet Radiation, Ultraviolet Spectrometers, Collimation, Gratings (Spectra), Interstellar Radiation, Mirrors
Scientific paper
A unique grazing incidence spectrometer system has been designed to study diffuse line emission between 80 and 650 A with 10-30 A resolution. The minimum detectable emission line strength during a 5-min observation ranges from 100-2000 ph/sq cm sec str. The instrument uses mechanically ruled reflection gratings placed in front of a linear array of mirrors. These mirrors focus the spectral image on microchannel plate detectors located behind thin filters. The field of view is 40 min of arc by 15 deg, and there is no spatial imaging. This instrument has been fabricated, calibrated, and successfully flown on a sounding rocket to observe the astronomical background radiation.
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