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.
Comparison of variance spectra for the various methods using data in a 20% wide photopeak energy window only. The spectra have been normalized so that the reconstruction-based scatter compensation variance is one at all singular values indices.
