...
White Paper response to NASA RFI
January 2012 AAS Poster
Effective area:
The plots below show the AEGIS effective area (vs wavelength (top) or energy (bottom)). The lower colored curves are the area per order and grating period (2000A or 2300A; orders 1-13 with lowest order rightmost on the wavelength axis). The upper gray curve is the sum of the lower curves. These areas were derived from end-to-end ray-trace simulations. They include the effects of (dithered) chip gaps, which show as the sharp downward spikes. The curves also contain a bit of noise (<3%), since they are derived from a Monte-Carlo ray-trace.
...