I noticed an interesting phenomenon.
When I perform FBP reconstruction with a full 360° (1200 frames) scan, both the left (L) and right (R) sides exhibit long-object cone-beam artifacts.
However, when I reconstruct using a short 240° scan (>180° + fan angle (49.5°)), the artifacts on the left (L) side are reduced, while those on the right (R) side become more severe.
Why does this happen?