Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Illumination, I (top), collection efficiency, CEF (middle), and observation volume, OV (bottom), profiles of traditional SMD (left) and CICS (right) calculated using a semigeometric optics model. The profiles are illustrated as xz plots. Traditional SMD has a small OV profile that varies sharply in the x and z directions whereas the CICS OV profile has a smooth plateau region that varies minimally. The units of illumination profile and OV profile are arbitrary units (AU).
