Helical Pitch
Example 2
20mm
10mm
20mm/rot
= 20/20 = 1
= 20/10 = 2
x-ray collimation
Detector width
table travel
pitchx
pitchd
Example 1
20mm
5mm
20mm/rot
= 20/20 = 1
= 20/5 = 4
Example 1
Example 2
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