Siemens AG SPB7-250.841.01.04.02 MAMMOMAT Novation DR
05.05 CS SD 24
Grid 51
Page 51 of 64
Medical Solutions
Fig. 27: Grid guide
Some screws are not to be loosened since this is a factory setting and ensures parallel
grid movement (1/Fig. 27 / p. 51).
Assembling the grid 0
The grid should be assembled as described in System Start-up, SPB7-250.815.., in the
Detector Installation section.
Grid lines
After assembling the grid, the image quality should be checked , i.e. for grid lines. This
should be done as described in System Start-up, SPB7-250.815... and in the following:
1. Register or create a Grid lines test and submit it via Exam.
2. Select the Vendor Proc 1 procedure from the examination tab card.
3. Select the exposure parameters: 28 kV and Mo/Mo.
4. Make sure that a 1:1 view is selected for a better view.
Select View -> 1:1.
5. Make all exposures according to Tab. 1.
6. Activate magnification (Image -> Magnify by 2.0) and look for grid lines in the plexi
phantom area.
7. Make a not of the results (visible grid lines) in Tab. 1, choose the next image in the list,
and start over with step 5 until all images are evaluated. For evaluation, also see the Im-
age Quality chapter of the Start-up Instructions.
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