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3.2.1.2 Collimator Filtration Selection
1
Fig. 3-6 Collimator filtration selection
3.2.1.3 Collimator Filters
The collimator filter options are:
• No added filtration
• Filter 1 =1 mm Al + 0.1 mm Cu
• Filter 2 =1 mm Al + 0.2 mm Cu
• Combined: 2 mm Al + 0.3 mm Cu
The filters can be predefined in the anatomical protocol and also be changed if needed
3.2.1.4 Laser
The laser can be switched off by applying a mechanical cover over the laser. The cover is
available underneath the collimator.
3.2.1.5 Collimator Functionality - System
When the overhead tube crane moves in a direction that changes the SID, the collimator
starts to compensate the field size. The collimator light field size on the imaging unit is held
constant with changing SID.
When the overhead tube crane is tracking against the Wallstand or when the table top is
released, the collimator light automatically is turned on. This is make it easier to directly find
the correct stand and patient position.
In Free mode/Auto position mode the position of the detector is unknown for the System.
The indicated size of the light field is correct at the shown SID.
Operator´s Manual
1.0
Al
0.1
Cu
2
1000-095-071-EN Rev. 2.1
Page 49
User Interface
Automatic Collimator Control
The user can change the selected value
from the display.
1. Collimator filtration selection icon
2. Collimator filtration selection values
OMNERA 500A
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