Author: Staples, J.W.
Paper Title Page
TUA01
 APEX: A Photo-injector for High Average Power Light Sources and Beyond  
 
  • D. Filippetto, C.W. Cork, S. De Santis, L.R. Doolittle, G. Huang, R. Huang, W.E. Norum, C. F. Papadopoulos, G.J. Portmann, H.J. Qian, F. Sannibale, J.W. Staples, R.P. Wells
    LBNL, Berkeley, California, USA
  
  Funding: Work supported by the Director of the Office of Science of the US Department of Energy under Contract no. DEAC02-05CH11231
Di­rect ob­ser­va­tion of struc­tural dy­nam­ics in com­plex sys­tems calls for a new gen­er­a­tion of ul­tra­fast in­stru­ments with en­hanced av­er­age bright­ness and in­creased sta­bil­ity. The APEX elec­tron source at LBNL was con­ceived and built for an­swer­ing that de­mand. It com­bines ul­tra-short bunches and high ac­cel­er­at­ing fields of rf guns, with high-rep­e­ti­tion-rate, sta­bil­ity and re­li­a­bil­ity typ­i­cal of CW sources. The suc­cess­ful demon­stra­tion of the source key per­for­mances, such as ac­cel­er­at­ing field, emit­tance and beam cur­rent, would en­able high rep­e­ti­tion rate op­er­a­tions for ap­pli­ca­tions such as X-Ray FELs, and ul­tra­fast elec­tron dif­frac­tion. We pre­sent the lat­est re­sults, in­clud­ing cath­ode tests, photo-beam and dark cur­rent char­ac­ter­i­za­tion, laser and beam jit­ter re­sults, and fu­ture plans. 		 
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