General Information; Gantry Coordinate System - GE Revolution CT User Manual

3 General Information

3.1 Gantry Coordinate System

X, Y, Z: Scanner gantry coordinate system:
•
X=Tangent to circle of rotation.
• Y=Radial (from ISO toward tube focal spot).
•
Z=Longitudinal (in/out of the scan plane).
Table 2: Scanner Geometry
Chapter 21 General Information
Illustration 2: Gantry Coordinate System
Parameter
ISO Center Height
Focal spot to ISO Center
Focal spot to detector
SFOV
Gantry Bore Diameter
Direction 5480385-1EN, Revision 1
1026 mm
625.6 mm
1097.6 mm
500 mm
795 mm
Revolution CT User Manual
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