Rapid-cycling synchrotrons (RCSs) are desired as the main component of radiotherapy facilities for cancer treatment in order to meet growing patient numbers. Superferric magnets consisting of high temperature superconducting (HTS) coil windings and iron cores are considered to be an effective solution for reducing construction cost and electricity consumption for RCSs. However, superferric...
A 14T physical property measurement system (PPMS) magnet with cryogen free is being developed in Institute of Electrical Engineering, Chinese Academy of Sciences (IEE, CAS). Unlike steady-state magnets such as NMR, MRI, the PPMS magnet is required to be excited frequently and the excitation rate usually needs very high, for example in 30min to reach the full magnet field. The fast excitation...
We are developing a high-Tc superconducting (HTS) air-core compact cyclotron, named Skeleton Cyclotron, that can accelerate various particles and variable energy for radio isotope (RI) production. The coil system of Skeleton Cyclotron consists of circular and noncircular REBCO coils for high magnetic field strength and high current density. However, the higher operating current density leads...
In recent years, advanced cancer treatment technologies have been required to deal with cancer patients with various disease sites and stages. Especially, targeted alpha-particle therapy is expected. In targeted alpha-particle therapy, a targeted drug labelled by alpha-emitting-RI is administered in a cancer patient. Therefore, nuclide production facilities are required, and alpha-emitting-RI...
The traditional endoscope mainly relies on the operation of the operator. The intestinal wall is often deformed and bent when pushed the operator pushed endoscope in, which increases the probability of damage to the intestinal tissue. Here, a flexible endoscope (FE) is developed that overcomes the shortcomings of traditional endoscopes. In order to improve maneuverability, a permanent magnet...
Transcranial magnetic stimulation has important applications in clinical diagnosis, clinical treatment and scientific research. In transcranial magnetic stimulation, the geometric configuration of the coil is particularly important, which determines the stimulation intensity and focalization. To improve these two indicators of transcranial magnetic stimulation, a novel coil is proposed in this...
Magnetic drug delivery system (MDDS) can deliver the magnetic drug to a specific area and reduce the side effect on healthy tissues. To improve its delivery efficacy, the high magnetic field strength and gradient are required. In order to understand the motion of the magnetic drugs under high magnetic field, this study established a multi-physics simulation model (including: magnetic force,...
A 240 MeV proton cyclotron is under-development in Hefei for proton medical application. Two double-split HTS superconducting coils are designed to generate max. 5 T magnetic fields which are used to confine the proton beam revolving around the median plane. In the past experience, low temperature superconducting coils are classic design, but people have to face lower operating temperature and...
