EUV/FUV response characteristics of photographic films for the multi-spectral solar telescope array.
The Multi-Spectral Solar Telescope Array (MSSTA) is a sounding rocket-borne observatory designed to produce ultrahigh-resolution full-disk images of the sun. The desire for ultrahigh-resolution (≡0.1 to 0.3″ images of the solar disk and corona out to 1.5 Rsun demands an information storage capacity that at the present time can be met only by the highest quality photographic emulsions. The authors describe the performance and characteristics required of the MSSTA photographic films for solar observations in the soft X-ray/EUV and FUV wavelength regimes. They discuss the properties of the important new emulsions selected for flight.