Title :
DUVFEL photoinjector dynamics: measurement and, simulation
Author :
Graves, W.S. ; DiMauro, L.F. ; Heese, R. ; Johnson, E.D. ; Rose, J. ; Rudati, J. ; Shaftan, T. ; Sheehy, B. ; Yu, L.H. ; Dowell, D.H.
Author_Institution :
NSLS, Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The DUVFEL photoinjector consists of a 1.6 cell BNL gun IV with copper cathode, variable pulse length Ti:Sapp laser, and solenoid magnet. The beam dynamics and the electromagnetic fields in the photoinjector have been characterized by producing a short electron beam with very low charge that is used as a field probe. The transverse beam size and divergence are measured as a function of the initial RF phase and the initial spot size and compared with simulations using the code HOMDYN. The electromagnetic fields used in the simulations are produced by SUPERFISH, and have been verified with RF measurements. The simulations and measurements of beam dynamics are presented
Keywords :
accelerator RF systems; accelerator magnets; collective accelerators; copper; electron accelerators; electron beam focusing; electron guns; free electron lasers; high energy physics instrumentation computing; particle beam dynamics; sapphire; solid lasers; titanium; Al2O3:Ti; BNL gun IV; Cu; DUVFEL photoinjector dynamics; HOMDYN code; SUPERFISH; beam dynamics; copper cathode; divergence; electromagnetic fields; field probe; initial RF phase; initial spot size; short electron beam; solenoid magnet; transverse beam size; variable pulse length laser; Cathodes; Copper; Electromagnetic fields; Electromagnetic measurements; Electron beams; Laser beams; Magnetic field measurement; Optical pulses; Radio frequency; Solenoids;
Conference_Titel :
Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-7191-7
DOI :
10.1109/PAC.2001.987333
