C.8.7.6 XRF Positioner Module
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#### C.8.7.6 XRF Positioner Module

Table C.8-31. XRF Positioner Module Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Distance Source to Detector | (0018,1110) | 3 | Distance in mm from source to detector center. ### Note This value is traditionally referred to as Source Image Receptor Distance (SID).
Distance Source to Patient | (0018,1111) | 3 | Distance in mm from source to center of field of view. ### Note This value is traditionally referred to as Source Object Distance (SOD).
Estimated Radiographic Magnification Factor | (0018,1114) | 3 | Ratio of SID (Source Image Receptor Distance) over SOD (Source Object Distance).
Column Angulation | (0018,1450) | 3 | Angle of the X-Ray beam in degree relative to an orthogonal axis to the detector plane. Positive values indicate that the tilt is towards the head of the table. ### Note The detector plane is assumed to be parallel to the table plane.

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