GIS Overview
The Grazing incidence spectrometer was born out of the requirement to
provide diagnostics in the sub 300 A region. This region is full of useful
diagnostic emission lines, particularly those in the iron (Fe) regime which allow
useful DEM analysis to be performed. In this region normal incidence optics
we're not at the stage of developement that they could produce feasible
sensitivities. Recent developements in multilayer optics now provide the
capabilities in the upcoming
Solar-B EIS
mission.
