urn:nasa:pds:context:instrument:iuvs.maven 1.0 1.4.0.0 Product_Context Imaging Ultraviolet Spectrograph 2015-03-24 1.0 Initial version. urn:nasa:pds:context:instrument_host:spacecraft.maven instrument_to_instrument_host Imaging Ultraviolet Spectrograph Ultraviolet Spectrometer IUVS is an imaging ultraviolet spectrograph which simultaneously images far ultraviolet (FUV) and middle ultraviolet (MUV) spectra onto paired Hamatsu V5180M image intensifiers with Cypress CYIH1SM1000AA-HHCS CMOS array detectors. Second order (110-190nm) light from the beamsplitter is measured by the FUV detector (with a CsI photocathode and MgF2 window) while first-order (180-340 nm) light is transmitted to the MUV detector (with a CsTe photocathode and synthetic silica window). A spectral resolution of 0.6 nm and 1.2 nm is achieved for the FUV and MUV, respectively.