Users Manual Part 5

IBA | 38-2 |
Clinical User’s Guide
Volume 1 - Treatment Session
|Part VI
- Using adaPT
deliver
in Standalone Mode Pausing and Stopping an Irradiation
|
Introduction
The normal end to an irradiation occurs when all elements of the prescribed
irradiation (spots) have been delivered.
One reason that necessitates a beam pause is patient movement during irradiation.
Exceptionally, an abnormal end to an irradiation may occur due to a software crash.
Gating the Beam
If you are using a gating system, you can perform manual or automatic beam gating,
if desired. For detailed information on beam gating, refer to Chapter 48, “Using the
Universal Beam Triggering Interface”.
WARNING Press the hardware emergency stop button if the irradiation fails to halt
when the software PAUSE or STOP button is clicked or when the
hardware PAUSE button is pressed.
WARNING Emergency stop buttons shut off energy to most components in the
Proton Therapy System (PTS). However, the electrical power to some
components will not be interrupted, so be aware that electrical hazards
and faults (faulty parts made live or induced fire) may still be present.
WARNING As a Radiation Therapy Technologist (RTT) you are recommended to
monitor the patient behavior during irradiation. In case of patient
movement, pause the beam immediately.
WARNING As a Radiation Therapy Technologist (RTT), during irradiation, you are
recommended to check the gating signal (on the gating equipment)
against the presence of the triggering request (i.e., the ‘Beam On
Trigger requested by source’ LED on the UBTI). In case a mismatch
occurs, pause the beam immediately.