Attaching The Collimator Mount - Brainlab RT/RS Hardware User's Manual

Collimator Mount
2.3.2

Attaching the Collimator Mount

Background
The collimator mount must only be used with the specific LINAC for which it was accepted.
Never change the collimator mount while a person is beneath the collimator mount.
After installing the collimator mount on the Linac, do not perform any Linac modifications
that could alter the distance between the source and collimator mount.
Attaching the Collimator Mount (Siemens/Varian)
Steps
Further Information
Please refer to the Linac manufacturer's manual for further information on attaching/ detaching
accessories. The base plate of the collimator mount as well as the accessory locking mechanism
varies depending on the manufacturer of the Linac.
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1. Position the gantry at 90°(270°) (according to the IEC 61217 scale).
Turn the Linac collimator so that the accessory tray slot opening points upward at an
2.
angle of 225°(45°) (according to the IEC 61217 scale).
3. Unscrew the two fixation screws (③ on Figure 11).
Slide the collimator mount completely into the accessory tray slot. Make sure that the
front screw tab ⑤ points outward when the collimator mount is inserted.
4.
This is the only way the collimator mount can be inserted.
Make sure that the accessory locking mechanism of the Linac is engaged.
5.
Refer to the Linac manufacturer's manual for further information on attaching/detach-
ing accessories.
• With the fixation screws open, carefully try to remove the locked collimator mount
from the accessory holder.
6.
• The locks must work effectively so that removal is not possible.
Once you are sure that the accessory locking mechanism of the Linac is properly en-
7.
gaged, firmly tighten both fixation screws by hand.
Hardware User Guide Rev. 4.9 RT / RS Stereotactic Hardware