Image Quality Check After Transport - AGFA DX-G User Manual

30 | DX-G, DX-M | Introduction

Image quality check after transport

The image quality check must be performed after installation of the digitizer
in a mobile environment and is recommended to be repeated after transport.
The check is done with a flat field exposure and should be performed with a
cassette of the largest format used at customer site.
Table 3: Image quality check after transport
X-Ray
source
General
radiogra-
phy
Mammog-
raphy
Check the flat field image on the NX workstation for homogeneity and stripe
artifacts. In case of problems, please inform your local Agfa service
representative.
2321G EN 20181126 1428
Exposure conditions
It is recommended to expose the cassette with 2 exposures of 10
µGy or 1 mR each. Rotate the cassette 180° after the first expo-
sure to compensate for the heel effect.
Typical settings for 10 µGy or 1 mR are:
• 75 kV
• 12 mAs
• 130 cm SID
• large focus
• 1.5 mm Copper filter
Identify the cassette as System Diagnosis GenRad - Flat Field.
For Mammography only 1 exposure is needed and no rotation
of the cassette.
Remove the compression paddle before the exposure.
Tape an Aluminum filter at the tube exit.
Insert the cassette in the bucky and make an exposure with the
following settings:
• 28 kV
• 200 mAs
• Mo/Mo
• large focus
• 2.0 mm Aluminum filter
If this leads to an overexposure, the mAs setting can be re-
duced, but it should not be lower than 50 mAs.
Identify the cassette as System Diagnosis Mammo - Flat Field
Mammo.