GE Diamond - Collimator; Diaphragms; X-Ray Field Illumination Light

5 Operating procedures
86500-IMG rev 3 GE Healthcare 25
WARNING!
Use of Rhodium is recommended only on breasts that are thicker than 6
cm or very dense.
5.5 COLLIMATOR
5.5.1 Diaphragms
Diamond has an automatic motorized collimator that allows any
rectangular collimation. For other collimated shapes, corresponding
special diaphragms must be inserted manually. When you fit a cassette
holder and compression paddle on to the unit, Diamond recognizes the
cassette and paddle size and selects the correct collimator aperture. The
type of cassette holder is displayed in Control Panel LCD display. If special
diaphragms are necessary, these are inserted manually.
NOTE!
If the collimator plates do not return to the home position, exposures are
prevented by Diamond software and an error message is displayed.
5.5.2 X-ray field illumination light
The X-ray field illumination light is switched on automatically when the
compression pedal is pressed down, the tube head is being driven
forward or the collimator light switch is pressed (inactive when the tube
head is in the back, in the park position). The light is switched off
automatically after 40 seconds (factory default, the service technician can
adjust the time within 20 - 60 seconds) or the light turns off when the
exposure button is pressed to start an exposure or when the collimator
light switch is pressed. The light helps to check that the collimation and
patient positioning are correct.
When the Delta 32 is attached, the collimator light stays on for 80 seconds
(factory default, the service technician can adjust the time within 20 - 90
seconds) to help provide good illumination over the breast. The light can
also be used when the tube is in the park position (driven backwards).
WARNING!
As the light bulb gets very hot whilst turned on, do not touch it during and
immediately after use.
FOR TRAINING PURPOSES ONLY!
NOTE: Once downloaded, this document is UNCONTROLLED, and therefore may not be the latest revision. Always confirm revision status against a validated source (ie CDL).