ESTRO 2024 - Abstract Book

S4937

Physics - Quality assurance and auditing

ESTRO 2024

Figure 1: Relative Dose Average Dose Rate distributions with depth in water for the nominal (left) and error (middle) scenario for a spot positional error. The percentage difference of the two distributions is also given (right)

Conclusion:

The suitability of a number of AAPM TG 224 recommendations have been assessed for both Bragg Peak and transmission Ultra-High Dose Rate proton PBS deliveries. This work informs the precision requirements for PBS proton FLASH.

Keywords: FLASH, Ultra-High Dose Rate, Protons

References:

1. S. Van de Water, S. Safai, J. Schippers, D. Weber and A. Lomax, “Towards FLASH proton therapy: the impact of treatment planningand machine characteristics on achievable dose rates,” Acta Oncologica, vol. 58, no. 10, pp. 1463 1469, 2019.