PT Journal
AU Andrews, HL
   Taheri, FB
   Barros, J
   Bartolini, R
   Bharadwaj, V
   Clarke, C
   Delerue, N
   Doucas, G
   Fuster-Martinez, N
   Vieille-Grosjean, M
   Konoplev, IV
   Labat, M
   Le Corre, S
   Perry, C
   Reichold, A
   Stevenson, S
TI Reconstruction of the time profile of 20.35 GeV, subpicosecond long electron bunches by means of coherent Smith-Purcell radiation
SO Physical Review Special Topics-Accelerators and Beams
JI Phys. Rev. Spec. Top.-Accel. Beams
PY 2014
BP 052802
EP 13pp
VL 17
IS 5
DI 10.1103/PhysRevSTAB.17.052802
LA English
AB We have used coherent Smith-Purcell radiation (cSPr) in order to determine the temporal profile of sub-ps long electron bunches at the Facility for Advanced Accelerator Experimental Tests, at SLAC. The measurements reported here were carried out in June 2012 and April 2013. The rms values for the bunch length varied between 356 to 604 fs, depending on the accelerator settings. The resolution of the system was limited by the range of detectable wavelengths which was, in turn, determined by the choice of the grating periods used in these experiments and the achievable beam-grating separation. The paper gives the details of the various steps in the reconstruction of the time profile and discusses possible improvements to the resolution. We also present initial measurements of the polarization properties of cSPr and of the background radiation.
ER