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.
(Top) Las Vegas contrast phantom for layer combinations (from left to right) REF, L1, L12, L123, L1234. The images are offset and gain corrected but not pixel defect corrected. The window/level was adjusted for best visibility. Notice the reduction in noise and increased visibility of the bottom circles from left to right. (Bottom) Contrast to noise ratio (CNR) and signal to noise ratio (SNR) for the reference detector, each MLI layer individually and all layer combinations.
