Conveners
Wed-Mo-Po3.04 - Medical Applications
- Atsushi Ishiyama (Waseda University)
- William Marshall (National High Magnetic Field Laboratory)
A proton therapy facility with multiple treatment rooms based on superconducting cyclotron scheme is under development in HUST (Huazhong University of Science and Technology). This paper will introduce design and development of the beamline system that convers the ESS (Energy Selection System) section based on an energy degrader, the gantry beamline with image optics, and a kicker system which...
We proposed the air-core cyclotron using high-temperature superconducting (HTS) technology, named Skeleton Cyclotron, as high intensity compact cyclotron. Skeleton Cyclotron consists of split main coils generating the isochronous field and sector coils generating the azimuthally varying field (AVF). Rapidness and reproducibility of magnetic field change for various particle and various energy...
A new proton therapy facility is under development in Huazhong University of Science and Technology.Scanning magnets play an important part in this facility, which affect the size of the radiation field by controlling the trajectory of the proton beam.Two independent dipole magnets, magnet X and magnet Y, scan the beam in horizontal and vertical, respectively.In order to reduce the temperature...
The scanning magnets in the proton therapy nozzle control the deflection of the proton beam by changing the magnetic field, so that the position of the proton beam can be controlled precisely, within 0.5mm error at lateral and longitudinal position. In order to meet the requirements for precise control of the beam position, a multiple redundant adaptive PID control system for scanning magnets...
A rotating gantry enables charged particles to be delivered to a tumor with great accuracy in heavy particle therapy. Hence, cancer therapy that does not damage a patient can be realized with a rotating gantry. The world’s first rotating gantry composed of superconducting magnets was developed in the National Institutes for Quantum and Radiological Science and Technology in 2015. Using...
In this study, a novel cancer treatment with low side effect and less invasiveness by blocking newborn blood vessels around the diseased part was proposed. In the therapy, ferromagnetic particles administered into the body are accumulated in the newborn blood vessels using a rotating magnetic field, and then are aggregated by a uniform magnetic field to block the blood vessels. The blockage...
Repetitive Transcranial Magnetic Stimulation (rTMS) is a non-invasive biological stimulation technology. For ideal therapeutic effect, the stimulation current usually has a rather high amplitude. Since the resistance of stimulation coil can’t be neglected, large Joule heat will be generated during treatment. Once the coil temperature is beyond safety margin, the stimulator will be suspended,...
