Title :
Pepper-pot based emittance measurements of the AWA photoinjector
Author :
Power, J.G. ; Conde, M.E. ; Gai, W. ; Gao, F. ; Konecny, R. ; Liu, W. ; Yusof, Z. ; Piot, Ph ; Rihaoui, M.
Author_Institution :
ANL, Argonne
Abstract :
The Argonne Wakefield Accelerator (AWA) RF photocathode gun is a 1.5 cell, L-band, RF photocathode gun operating at 77 MV/m, with emittance compensating solenoids, a magnesium photocathode, and generates an 8 MeV, 1 nC - 100 nC beam. In this paper, we report on a parametric set of measurements to characterize the transverse trace space of the 1 nC electron beam directly out of the gun. We emphasize details of the experimental setup, image analysis, and end with a comparison of the measurements to PARMELA simulations.
Keywords :
accelerator RF systems; electron beams; electron guns; particle beam dynamics; photocathodes; solenoids; wakefield accelerators; Argonne Wakefield Accelerator RF photocathode gun; Argonne Wakefield Accelerator photoinjector; PARMELA simulations; electron beam; image analysis; magnesium photocathode; pepper-pot based emittance measurements; transverse trace space; Cathodes; Charge measurement; Current measurement; Laser beams; Particle beams; Phase measurement; Power measurement; Pulse measurements; Radio frequency; Space charge;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440016
