Instrumentation & Measurement Magazine 24-9 - 61

Current and Future Technologies of
the CNAO Dose Delivery System
Marco Donetti, Simona Giordanengo, Christian Graeff, Michelle Lis, Felix Mas Milian,
Marco Pullia, Timo Steinsberger, Anna Vignati, and Sandro Rossi
T
he aim of this paper is to review the Dose Delivery
System (DDS), developed by the National Center for
Oncological Hadrontherapy (CNAO), Pavia, Italy, in
collaboration with a group at the National Institute of Nuclear
Physics (INFN) of Turin, Italy. The DDS controls and monitors
the delivery of clinical ion beams.
The CNAO DDS is a CE-marked medical device, meeting
all performance and safety requirements, in clinical use at
CNAO and MedAustron EBG, Wiener Neustadt, Austria. Both
facilities contain a synchrotron for proton and carbon ion therapy,
delivered with the modulated beam scanning technique,
also named pencil beam scanning (PBS). The DDS serves as
the interface between the accelerator and the peripheral components
that supervise and coordinate patient irradiation. Its
main purpose is to control and monitor the beam produced
by the accelerator during treatment. Delivery information is
provided as a sequence of pencil beams, as a treatment plan,
created by a treatment planning system (TPS).
Fig. 1. A treatment room of the National Center for Oncological Hadrontherapy. The DDS monitors are located at the end of the extraction line, inside a protective cover.
December 2021
IEEE Instrumentation & Measurement Magazine
1094-6969/21/$25.00©2021IEEE
61

Instrumentation & Measurement Magazine 24-9

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