Conveners
M2: Treatment Monitoring
- Antonio Fernandez Prieto (Instituto Galego de Física de Altas Enerxías (IGFAE) Universidade de Santiago de Compostela (ES))
Eight years ago, the milestone of first-in-human range verification of a proton therapy treatment using prompt gamma-rays was achieved using a collimated gamma-ray camera. Despite being developed by a major proton accelerator vendor, the widespread clinical application and commercial availability of this device is not yet in sight. It remains unsure whether its size and weight will allow their...
Proton therapy (PT) treatments still offer space for improvement. This
is because the
positioning of the Bragg peak may still suffer from several dose
disturbing mechanisms such
as patient mispositioning and/or anatomical modifications occurring in
the course of
fractionated PT. Some examples will be covered, together with two
techniques aiming each
at the verification of each PT...
The IRIS group of IFIC is developing a system for hadron therapy treatment monitoring through the detection of the photons emitted by the irradiated tissue. The system is composed of three planes of LaBr3 crystals coupled to SiPM arrays and operated in time coincidence. After the successful results obtained with the second prototype, MACACO II, the system performance has been improved.
The...
Introduction: FLASH effect is deeply influenced by the beam pulse structure (instantaneous dose-rate, dose-per-pulse or number of pulses) as it modifies the cell’s exposure to free radicals, so fast and accurate monitoring of the time structure of the beam is vital for FLASH treatments [1]. However, high dose rate plans or very short proton bunches may pose problems to current beam monitor...
The thermoacoustic pressure waves generated by the proton beam in protontherapy treatments may provide information on the distribution of the deposited dose in tissues. This approach, called protoacoustics, is a promising method for proton range verification. In this work, we show with realistic simulations and artificial intelligence models how to estimate the Bragg peak (BP) location from...
