Users Manual Part 1

IBA | 5-2 | Clinical User’s Guide
Volume 1 - Treatment Session
|Part II - Using Treatment Room Equipment Introducing Treatment Room Equipment |
 Operating the Patient Positioning System Manually (Emergency Release Mode)
 Performing QA Checks and Verifying Beams With a Water Phantom
 Troubleshooting Treatment Room Equipment.
Effects of Temperature and/or Pressure
Changes in the Treatment Room
Fluctuations in temperature and/or pressure have an impact on beam measurement
performed by Ionization Chamber 2/3 (IC2/3), which is located in the nozzle.
To ensure correct IC2/3 measurement, the ambient TR temperature and pressure is
measured and recorded every morning.
If, in the course of the day, temperature and/or pressure is observed to be deviating
from the values measured in the morning, these new values must be recorded using
the Dosimetry Manager. For detailed information on the Dosimetry Manager, refer to
Appendix C “Using the Dosimetry Manager”.
Note: An acceptable deviation will depend on the your PT center's requirement for
dose reproducibility
Safety Aspects
WARNING Whenever the temperature and pressure deviate beyond the treatment
center quality management plan threshold, the temperature and
pressure have to be updated manually using the Dosimetry Manager.
WARNING It is strictly forbidden to ever place any objects (tools, parts, etc) on top
or inside moving devices such as the nozzle, or the gantry. Falling tools
or parts can injure patients or staff.
Take inventory of the tools or parts after using them in a treatment
room.