50 Collimator Adjustment
MAMMOMAT Novation DR SPB7-250.815.06.02.02 Siemens AG
12.05 CS SD 24
Page 50 of 116
Medical Solutions
• Moving the collimator IN is done by DECREASING the YC value and INCREASING the
YS, XL, and XR values.
Collimator beam check and calibration 0
You have to perform the collimator beam check with the detector wing for all focus &
anode combinations.
1. Make sure that a patient is registered.
2. Select the detector wing. dr is then displayed on the control console.
3. Mount the Collimator Mounted Phantom.
4. Connect the compression simulator.
5. Select 25 kV and 50 mAs on the control console.
X 6. Start an exposure.
7. View the image with a magnification of 4.
8. Slide the magnification glass along the image edges of the image and check if white
lines are visible.
NOTE
If you do not see white lines at the edges of the image, the collima-
tor beam calibration is correct and you can continue with the "Col-
limator field light calibration" on (Collimator field light
calibration / p. 52).
Otherwise continue with the "Collimator beam calibration" on
(Collimator beam calibration / p. 50)
Collimator beam calibration
Collimator for the collimator beam is carried out as follows:
1. Make sure that the detector wing is selected. dr is then displayed on the control con-
sole.
2. Connect the compression plate simulator and the collimator mounted plexi phantom.
3. Connect the service PC to the MAMMOMAT stand and start the service software.
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