Abstract
BackgroundThe superconducting cyclotron is of great importance to treat cancer parts of the body. To reduce the operation costs, a superconducting magnet system for the 250 MeV proton cyclotron was designed to confirm the feasibility of the superconducting cyclotron.FindingsThe superconducting magnet system consists of a pair of split coils, the cryostat and a pair of binary high temperature superconductor current leads. The superconducting magnet can reach a central magnetic field of about 1.155 T at 160 A. The three GM cryocooler with cooling capacities of 1.5 W at 4.5 K and 35 W at 50 K and one GM cryocooler of 100 W at 50 K were adopted to cool the superconducting magnet system through the thermosiphon technology.ConclusionThe four GM cryocoolers were used to cool the superconducting magnet to realize zero evaporation of the liquid helium.
Highlights
The superconducting cyclotron is of great importance to treat cancer parts of the body
The 250 MeV superconducting cyclotron for proton therapy is being designed due to the advantages with high magnetic field, low operation costs and more compactness compared with the conventional magnet technology (Kang et al 2010; Newhauser and Zhang 2015; Choi et al 2010)
The superconducting magnet system consists of a pair of split coils, cryostat, a pair of HTS current leads, and four GM
Summary
The superconducting cyclotron is of great importance to treat cancer parts of the body. To reduce the operation costs, a superconducting magnet system for the 250 MeV proton cyclotron was designed to confirm the feasibility of the superconducting cyclotron. Findings: The superconducting magnet system consists of a pair of split coils, the cryostat and a pair of binary high temperature superconductor current leads. The 250 MeV superconducting cyclotron for proton therapy is being designed due to the advantages with high magnetic field, low operation costs and more compactness compared with the conventional magnet technology (Kang et al 2010; Newhauser and Zhang 2015; Choi et al 2010). The design goals of the superconducting cyclotron include high reliability, low activation, easy maintenance and easy to use. The superconducting magnet system consists of a pair of split coils, cryostat, a pair of HTS current leads, and four GM
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