GaToroid: A novel toroidal gantry for hadron therapy

Bottura, L.; Felcini, Enrico; Rijk, G. de; Dutoit, B.

doi:10.1016/j.nima.2020.164588

Cited by 26 publications

(15 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Alternative gantry designs to allow rapid beam delivery also include a novel method using high field SC magnets to produce a toroidal field capable of delivering beams from multiple directions in a fixed, steady state, ‘ GaToroid ’ gantry ( 119 ). This removes the mechanical and time constraints typically required to change angle and energy.…”

Section: Limitations and Avenues For Improvementsmentioning

confidence: 99%

Future Developments in Charged Particle Therapy: Improving Beam Delivery for Efficiency and Efficacy

2021

View full text Add to dashboard Cite

The physical and clinical benefits of charged particle therapy (CPT) are well recognized. However, the availability of CPT and complete exploitation of dosimetric advantages are still limited by high facility costs and technological challenges. There are extensive ongoing efforts to improve upon these, which will lead to greater accessibility, superior delivery, and therefore better treatment outcomes. Yet, the issue of cost remains a primary hurdle as utility of CPT is largely driven by the affordability, complexity and performance of current technology. Modern delivery techniques are necessary but limited by extended treatment times. Several of these aspects can be addressed by developments in the beam delivery system (BDS) which determines the overall shaping and timing capabilities enabling high quality treatments. The energy layer switching time (ELST) is a limiting constraint of the BDS and a determinant of the beam delivery time (BDT), along with the accelerator and other factors. This review evaluates the delivery process in detail, presenting the limitations and developments for the BDS and related accelerator technology, toward decreasing the BDT. As extended BDT impacts motion and has dosimetric implications for treatment, we discuss avenues to minimize the ELST and overview the clinical benefits and feasibility of a large energy acceptance BDS. These developments support the possibility of advanced modalities and faster delivery for a greater range of treatment indications which could also further reduce costs. Further work to realize methodologies such as volumetric rescanning, FLASH, arc, multi-ion and online image guided therapies are discussed. In this review we examine how increased treatment efficiency and efficacy could be achieved with improvements in beam delivery and how this could lead to faster and higher quality treatments for the future of CPT.

show abstract

Section: Limitations and Avenues For Improvementsmentioning

confidence: 99%

Future Developments in Charged Particle Therapy: Improving Beam Delivery for Efficiency and Efficacy

2021

View full text Add to dashboard Cite

show abstract

“…The heart of the proposed design is a radically new gantry concept [27], based on a superconducting toroidal magnet generating an axially symmetrical field, that allows focusing beams of different energies on the same point.…”

Section: Methodsmentioning

confidence: 99%

Delivery, Beam and Range Monitoring in Particle Therapy in a Highly Innovative Integrated Design

et al. 2020

Self Cite

View full text Add to dashboard Cite

The design of a particle therapy system that integrates an innovative beam delivery concept based on a static toroidal gantry and an imaging configuration suitable for beam and online range monitoring is proposed and discussed. Such approach would provide a compact and cost-effective layout, with a highly flexible and fast beam delivery, single particle counting capability for fast measurement of beam fluence and position and a precise real time verification of the compliance between the treatment delivery and its prescription. The gantry configuration is discussed, presenting an analysis of the residual magnetic field in the bore and of the feasibility of irradiating a realistic target volume. Moreover, the expected performance of the PET-based range monitor is assessed through Monte Carlo simulations, showing a precision in the reconstruction of the activity distribution from a clinical treatment plan better than the state-of-the-art devices. The feasibility of the proposed design is then discussed through an assessment of the technological improvements required to actually start the construction and commissioning of a system prototype.

show abstract

“…Developments include design of a BDS in which no mechanical motions are necessary to rotate the beam around the patient. 104,105 The beam transport magnets can be distinguished as quadrupole magnets to focus the beam and steering and bending magnets (dipole magnets) to aim the beam into specific directions. The magnet strengths are set automatically via the control system.…”

Section: Uhdr Beam Transportmentioning

confidence: 99%

Ultra‐high dose rate radiation production and delivery systems intended for FLASH

Farr¹,

Grilj

Malka

et al. 2022

Medical Physics

View full text Add to dashboard Cite

Higher dose rates, a trend for radiotherapy machines, can be beneficial in shortening treatment times for radiosurgery and mitigating the effects of motion. Recently, even higher doses (e.g., 100 times greater) have become targeted because of their potential to generate the FLASH effect (FE). We refer to these physical dose rates as ultra‐high (UHDR). The complete relationship between UHDR and the FE is unknown. But UHDR systems are needed to explore the relationship further and to deliver clinical UHDR treatments, where indicated. Despite the challenging set of unknowns, the authors seek to make reasonable assumptions to probe how existing and developing technology can address the UHDR conditions needed to provide beam generation capable of producing the FE in preclinical and clinical applications. As a preface, this paper discusses the known and unknown relationships between UHDR and the FE. Based on these, different accelerator and ionizing radiation types are then discussed regarding the relevant UHDR needs. The details of UHDR beam production are discussed for existing and potential future systems such as linacs, cyclotrons, synchrotrons, synchrocyclotrons, and laser accelerators. In addition, various UHDR delivery mechanisms are discussed, along with required developments in beam diagnostics and dose control systems.

show abstract

GaToroid: A novel toroidal gantry for hadron therapy

Cited by 26 publications

References 22 publications

Future Developments in Charged Particle Therapy: Improving Beam Delivery for Efficiency and Efficacy

Future Developments in Charged Particle Therapy: Improving Beam Delivery for Efficiency and Efficacy

Delivery, Beam and Range Monitoring in Particle Therapy in a Highly Innovative Integrated Design

Ultra‐high dose rate radiation production and delivery systems intended for FLASH

Contact Info

Product

Resources

About