A multi-cell RF photoinjector design

Sanghyun Park
Proceedings Particle Accelerator Conference  
A research and development effort has been underway to realize a high-brightness, low-emittance rf photoinjector to produce 1 to 3 nC bunch of photoelectrons at an energy of up to 20 MeV with a normalized rms emittance of 10 mm±mrad or less. It consists of a half cell at the photocathode and seven full cells, operating in 2856 MHz, ±mode, standing wave. Numerical calculations with POISSON/SUPERFISH and PARMELA codes indicate that the design goal can be achieved within realistic constraints on
more » ... chanical device tolerances and rf source availability. The latest among the series of numerical models is somewhat similar to the SLAC type accelerator in geometric dimensions, although the device characteristics are vastly different.
doi:10.1109/pac.1995.505091 fatcat:ywemm7b35nd67f2jfkqhqftsb4