Particle beam accelerator - has spherical cavities providing acceleration and uses HF quadrupole focussing

摘要

The accelerator uses successive spherical resonator cavities to provide acceleration, retardation, bunching, debunching, or axial focussing and de-focussing and provides HF quadrupole focussing. The accelerator is used for medium and high energy ranges from about 1 MeV/a to about 1 GeV/a and above and provides a high acceleration field intensity and focussing force. The appts. has a greatly reduced energy consumption compared with appts. using quadrupole magnets. The accelerator comprises two spherical resonator cavities using base and harmonic modes e.g. H-11 and H-22 waves.