HiRES - A high-resolution stigmatic extreme ultraviolet spectroheliometer for studies of the fine-scale structure of the solar chromosphere, transition region, and corona

Abstract

HiRES is a high-resolution stigmatic EUV spectroheliometer whose 45-cm Gregory telescope is coupled to a spectrometer employing a single toroidal diffraction grating and an imaging pulse-counting multianode microchannel array detector system. This spectroheliometer will be used in conjunction with plasma-diagnostic techniques to study the temperature, density, and velocity structures of specific features in the outer solar atmosphere.