Speaker
Description
The University of Melbourne’s TURBO project aims to improve the efficacy of hadron cancer therapy by reducing the energy layer switching time of beam delivery systems. For this, a closed-dispersion arc has been designed based on Fixed Field Accelerator (FFA) principles utilizing complex non-linear magnets. The goal is to achieve up to ±42% rigidity acceptance in a beamline with an overall bend of 30°. While a low-energy (0.5-3.0 MeV) demonstrator is currently being constructed using this scheme, other techniques are considered given the challenges of scaling up a multipole-magnet-based approach to clinically relevant regimes (60-250 MeV). Multi-Bend Achromats (MBAs) are promising alternative candidates as they rely on simpler, separate-function components, strong-field versions of which already exist. We have designed an MBA with a rigidity acceptance of ±30 %, covering key parts of the desired range, while also meeting clinical requirements for the stability of spot size, shape and position across all covered energy layers. While the original FFA approach provides superior capabilities, this MBA offers a simpler option for a full-scale cancer therapy delivery system.
Funding Agency
The University of Melbourne
National Institutes of Health, Grant Number: NIH NCI R37CA2883437
| In which format do you inted to submit your paper? | LaTeX |
|---|