Transverse emittance measurements on an S-band photocathode rf electron gun

  title={Transverse emittance measurements on an S-band photocathode rf electron gun},
  author={John F. Schmerge and Paul R. Bolton and J. E. Clendenin and F. J. Decker and David H. Dowell and Stephen Gierman and Cecile Limborg and Brendan Murphy},
Proposed fourth generation light sources using SASE FELs to generate short pulse, coherent, X-rays require demonstration of high brightness electron sources. The Gun Test Facility (GTF) at SLAC was built to test high brightness sources for the proposed Linac Coherent Light Source at SLAC. The transverse emittance measurements are made at nearly 30 MeV by measuring the spot size on a YAG screen using the quadrupole scan technique. The emittance was measured to vary from 1 to 3.5 mmmrad as the… CONTINUE READING
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