Users Manual Part 6

Clinical User’s Guide IBA | 48-17|
Volume 1 - Treatment Session
|Part XI - Patient Positioning and Alignment Using the Universal Beam Triggering Interface |
c. Optionally, if you want to use the gating equipment for patient alignment,
press the X-ray triggering toggle button.
d. When working in manual mode: press the Internal triggering button and
keep it pressed. Release this button when beam is no longer authorized.
Before starting irradiation:
1. When working in automatic mode, verify the consistency of the Beam On
trigger LED with the beam authorization information generated by the gating
system (Figure 48-9)"
During irradiation:
1. When working in manual mode: release the Internal triggering button when
beam is no longer authorized.
2. When working in automatic mode, verify that the Beam On trigger LED
remains flashing, which indicates that beam triggering signals are being
received.
When irradiation has finished:
1. When finished using the UBTI, make sure that the X-ray triggering toggle
button is deselected.
CAUTION As a Radiation Therapy Technologist (RTT), check prior to the actual
irradiation that the gating signal displayed on the Universal Triggering
Electronic Unit (UTEU) is in line with the triggering device gating signal,
and is within appropriate timing specifications.
If the above conditions are not met, do
NOT start the irradiation and
verify the set-up (i.e., proper connection to the UTEU, source selection,
etc.).
WARNING As a Radiation Therapy Technologist, you shall make sure that the
position of the selector switch of the external beam triggering interface
is consistent with the display on the irradiation screen.