Siemens MAMMOMAT Novation DR Parts Replacement page 46

46
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Don't exit this window
Fig. 23: Image
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Make an exposure using the collimator-mounted phantom, RCC, 28 kV, 5mAs, Mo/Mo.
The image shows a "dark shadow" in the center
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.
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Save the value by pressing F2.
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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.
MAMMOMAT Novation DR SPB7-250.841.01.04.02
05.05
Collimator and D814
(Fig. 23 / p. 46). The limits (left/right) of
Page 46 of 64
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