Chapter 8: System Hardware Overview
5495975-1EN Rev.9 8-28
© 2013-2017 General Electric Company. All rights reserved.
Collimator Display
The multi-leaf collimator has an display that provides information about the collimator. Figure 8-14 and
Table 8-9 explain the information displayed on the collimator.
2. Message Displays messages when Exposure Hold is active and providing information
concerning the positioner interlocks that are disabling the exposure.
If there is no Exposure Hold, displays the size of the collimation field (FOV).
Note: Messages shown on collimator display are in English. Translated mes-
sages appear on the OTS control screen (refer to OTS Control
Screen(p. 8-18) ) and the acquisition workstation.
3. SID display Displays the current Source Image Distance. Press the [+] and [-] buttons to
switch the SID between 100 and 180 cm (40 and 72 in).
4. Lateral collimator
field size
Adjusts the lateral field size. Turning the dial to the left closes the collimator,
turning to the right opens the collimator.
5. Collimator light
switch
Turns the collimator light on and off. Cutout can also be performed
automatically via an internal time switch. The operating time can be
configured in steps of up to 90 seconds.
6. Vertical collimator
field size
Adjusts the vertical field size. Turning the dial to the left closes the collimator,
turning to the right opens the collimator.
7. Measuring tape Contains a measuring tape to determine SID.
Table 8-8 Collimator controls
Item Description
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