Figure 1.
Cylindrical water phantom used for noise and uniformity measurements. The same phantom half filled with water was used to determine the modulation transfer function.
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.