A5025759484- Superconducting Materials and Applications
- Particle Accelerators and Free-Electron Lasers
- Particle physics theoretical and experimental studies
- Particle accelerators and beam dynamics
Japan Atomic Energy Agency
2022
Japan Proton Accelerator Research Complex
2022
Magnetic field shimming using low saturation magnetization material was tested to realize spatial magnetic homogeneity of less than 1 ppm. The moment per unit mass were measured for three candidates, that is, Nickel, fluid and putty, it verified those have moments suitable precise below test performed MRI magnet MuSEUM experiment at 1.2 T with iron plates, Ni thin plates putty. conducted employing the two step scheme, could be reached 0.29 ppm peak-to-peak (ppm <inline-formula...
The evaluation of a new shift bump magnet for replacement the J-PARC (Japan Proton Accelerator Research Complex) RCS (Rapid Cycling Synchrotron) confirmed that measured magnetic field waveform was different from excitation-current waveform. reason this is eddy-current effect due to fast trapezoidal excitation pattern approximately 1.5 ms. same result by OPERA-3D. A high-precision injection-beam orbit suppresses device radiation beam loss necessary. Therefore, in injection magnet, variation...