FIG. 3.
In (a) and (b), the stray radiation background subtracted image, as well as the flat field calibration image for the imaging system used, is shown.
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.