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.
Orientation of example object for Figs. 5a, 5b, 5c, 5d, 5e, 5f, 5g, 5h. The reader is viewing the images as if they were the detector (i.e., the tumor is closest to the detector atθ=0°). The example object consists of a cylinder (diameter =25.4 mm, height =83 mm) meant to estimate the size of a mouse, plus an offset sphere (diameter =5 mm, distance from central axis of rotation of cylinder =5 mm) to simulate a lesion.
