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Nagaitsev, S.

Paper Title Page
TH5RFP042 Bunch Length Monitoring at the A0 Photoinjector Using a Quasi-Optical Schottky Detector 3543
 
  • G.M. Kazakevich, M.A. Davidsaver, H.T. Edwards, R.P. Fliller, T.W. Koeth, A.H. Lumpkin, S. Nagaitsev, J. Ruan, R. Thurman-Keup
    Fermilab, Batavia
  • Y.U. Jeong
    KAERI, Daejon
  • V.V. Kubarev
    BINP SB RAS, Novosibirsk
 
 

Funding: Work supported by the U.S. Department of Energy under contract No. DE-AC02-07CH11359.


Noninvasive bunch duration monitoring has a crucial importance for modern accelerators intended for short wavelength FEL’s, colliders and in some beam dynamics experiments. Monitoring of the bunch compression in the Emittance Exchange Experiment at the A0 Photoinjector was done using a parametric presentation of the bunch duration via Coherent Synchrotron Radiation (CSR) emitted in a dipole magnet and measured with a wide-band quasi-optical Schottky Barrier Detector (SBD). The monitoring resulted in a mapping of the quadrupole parameters allowing a determination of the region of highest compression of the bunch in the sub-picosecond range. The obtained data were compared with those measured using the streak camera. A description of the technique and the results of simulations and measurements are presented and discussed in this report.