Users Manual Part 2

Clinical User’s Guide IBA | 12-7|
Volume 1 - Treatment Session
|Part II - Using Treatment Room Equipment Alignment Tools and Devices |
Patient Alignment Devices
The Patient Alignment Devices are used to verify the correct position of the patient
prior to an irradiation. These devices are:
 Lasers
 X-ray tubes and associated Digital Imaging Devices (DID): each X-ray tube
works in combination with a DID flat panel to record an X-ray image.
Note: Use the lasers for initial positioning of the patient, use the X-ray tubes next.
Lasers have a precision of ~3 mm; the precision of the X-ray based method is
<1 mm.