GaToroid was first conceptually designed to reduce the size of gantries in proton and ion therapy facilities. The design not only reduced the size and inherent cost of gantries, but it also allows physicians to benefit from fast multi-directional beam delivery and the benefits which come with stereotaxis.

The image above demonstrates the magnet placement and vector kicker for a proton therapy gantry GaToroid.	A further, larger design was conceptualised for carbon therapy.

 

The next step is to make the “Compact GaToroid” which could be built with iron-dominated magnets, and will be suitable for 200 MeV electron beams (VHEE), as well as protons at 70 MeV. The gantry profits from the use of toroidal quadrupoles, which greatly simplify the design, and size of the overall structure. An additional novelty is the use of a resonant kicker as the vector magnet. All of these components allows the compact gantry design to potentially have FLASH capabilities, due to multi-directional treatment.

Conceptual design of Compact GaToroid for VHEE

 

Compact GaToroid could allow a revolutionary change in gantry design and operations for cancer therapy. Not only does the design allow for low consumption, steady operations, and fast switching of energies and directions, but it also allows for new and improved treatment possibilities.

 

Please find below the publications of GaToroid:

L. Bottura, A gantry and apparatus for focusing beams of charged particles, European Patent EP 3 573 075 A1 (2019)

E. Felcini, Analysis of Novel Magnet Configuration for Hadron Therapy Gantry, PhD Thesis (2020)

E. Felcini et al., Magnetic Design of a Superconducting Toroidal Gantry for Hadron Therapy, IEEE Trans. Appl. Supercond. 30, 4400405 (2020)

L. Bottura et al., GaToroid: A novel toroidal gantry for hadron therapy, Supercond. Nucl. Instrum. Methods A 983, 164588 (2020)

L. Bottura et al., Delivery, beam and range monitoring in Particle Therapy in a highly innovative integrated design, Front. Phys. 8, 566679 (2020)

E. Felcini et al., Particle tracking and beam optics analysis on a toroidal gantry for proton therapy, Phys. Med. Biol. 66, 104002 (2021)

E. Oponowicz et al., Study of coil configuration and local optics effects for the GaToroid ion gantry design, J. Phys. Conf. Ser. 2420, 012100 (2023)

L. Bottura et al., Magnetic Design of a Compact GaToroid for Very High Energy Electron and Pre-Clinical Hadron Beams, IEEE Trans. Appl. Supercond. 34, 4403005 (2024)