Three major uses of particle accelerators
Synchrotron light source
ESRF, DIAMOND
Brightness of light
•Ultimate goal is a beam as a point source.
(or zero emittance.)
High power source
µ, K, Neutron source, ν factory
Energy carried by a beam
•Large emittance to avoid multi particle effects
•Proton, can be ion, but not electron.
High energy frontier
LHC, ILC
Energy of each particle
•Always a driving force of accelerator development.
•Small emittance is preferred.