Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.344..211p&link_type=abstract
In ESA, Solar Physics and Astrophysics at Interferometric Resolution p 211-213 (SEE N93-10901 01-90)
Astronomy and Astrophysics
Astrophysics
Design Analysis, Imaging Spectrometers, Interferometry, Solar Instruments, Solar Radiation, Solar Spectrometers, Ultraviolet Detectors, Extreme Ultraviolet Radiation, Fourier Transformation, Imaging Techniques, Pixels, Spatial Resolution
Scientific paper
Detectors for the Solar Ultraviolet Network (SUN) and Imaging Fourier Transform Spectrometer (IFTS) instruments, which are particularly challenging due to the requirements for high total count rate, high pixel count rate, and far UV sensitivity, are discussed. Count rates are exceptionally high for active regions, but with a spatial resolution of 0.001 inches it is also possible that high individual pixel counts will occur even on 'quiet' Sun observations. On the other hand it is planned to use the Solar Interferometric Mission for Ultrahigh Resolution Imaging and Spectroscopy (SIMURIS) for planetary observations where the detectors will be required to work efficiently and with very low noise levels. It seems unlikely that any one detector would suffice for all channels, and in any case this could potentially represent a single point of failure. The design and performance of a range of modular detectors which are built specifically with solar UV observing in mind are discussed along with plans for their future development.
Carter Kevin M.
Patchett B. E.
Read Peter D.
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