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 HU values between FBP and AIDR methods for object variations at (a) 135 kVp, (b) 120 kVp, (c) 100 kVp, and (d) 80 kVp. Labeled with some numbers are as follows: 1 for the air object, 2 for the polypropylene object, 3 for the nylon object, 4 for the acrylic object, and 5 for the Delrin object.
