46 Collimator and D814
MAMMOMAT Novation DR SPB7-250.841.01.04.02 Siemens AG
05.05 CS SD 24
Page 46 of 64
Medical Solutions
• Don’t exit this window
Fig. 23: Image
• Make an exposure using the collimator-mounted phantom, RCC, 28 kV, 5mAs, Mo/Mo.
The image shows a “dark shadow” in the center (Fig. 23 / p. 46). The limits (left/right) of
this “dark shadow” must be the same distance from the image edges. Increasing the fil-
ter offset value moves the “shadow” to the right, and decreasing the filter offset value
moves the “shadow” to the left. The difference between both sides should not exceed 2
mm.
• Save the value by pressing F2.
• Close the service program.
After replacing the collimator or board D814, the collimator has to be adjusted. Refer to:
System Start-up, WH AWS, SPB7-250.815…., the Collimator Adjustment chapter, for
systems with WH AWS or Installation Instructions and Start-up, SPB7-250.812…, the Col-
limator Adjustment chapter, for systems with DROC.
Furthermore, the dose settings must be checked using the same instructions.
To Next Page
Loading...
