Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977cosp.meetqr...m&link_type=abstract
COSPAR, Plenary Meeting, 20th, Tel Aviv, Israel, June 7-18, 1977, Paper. 4 p. NASA-supported research.
Astronomy and Astrophysics
Astronomy
Radiation Detectors, Spaceborne Astronomy, Spaceborne Telescopes, Ultraviolet Photometry, Ultraviolet Spectrometers, Astronomical Photometry, Microchannels, Pointing Control Systems, Quantum Counters
Scientific paper
Recent accomplishments in three areas of UV instrumentation for space astronomy are discussed. These areas include reliable UV photometry, sensitive photon-detection techniques, and precise telescope pointing. Calibration facilities for spectrometers designed to operate in the spectral regions above 1200 A and down to 400 A are described which employ a series of diodes calibrated against electron synchrotron radiation as well as other radiometric standards. Improvements in photon-detection sensitivity achieved with the aid of pulse-counting electronics and multispectral detectors are reported, and the technique of precise subarcsecond telescope pointing is briefly noted. Some observational results are presented which demonstrate the advantages and precision of the instruments and techniques considered.
Davidsen Arthur F.
Fastie William G.
Moos Warren H.
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