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.
(A) DRR intensity histogram for single energy cases (red) and mixed energy cases (green); (B) PC1 and PC2 score of single energy cases (red) and mixed energy cases (green) for training dataset (solid square) and validation dataset (circle), PC1 = 0 is shown as black line.
