Experiments on CSR Effects at CTF II

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Presentation transcript:

Experiments on CSR Effects at CTF II H.H. Braun, R. Corsini, S. Doebert, L. Groening, F. Zhou, CERN A. Kabel, T.O. Raubenheimer, SLAC R. Li, TJNAF T. Limberg, DESY M. Borland, ANL January 17, 2002 Dependence on compression (R56) Dependence on horizontal beam size during compression Dependence on shielding environment

Investigation of CSR effects on beam phasespace distribution at CTF-II - Transverse emittance growth - Beam energy loss - Increase of momentum spread - Benchmarking of simulation codes - Investigation of shielding by parallel conducting plates

Experiments on CSR with the CTF-II bunch compressor chicane Measure as function of R56 : - rms bunch length - mean beam energy - energy spread - transverse emittances Measurement for 5 nC and 10 nC per bunch ( Results excepted for publication in PRST-AB )

Observables after bunch compressor (5 nC) :

Bunch energy spectra after compressor (5 nC) :

Observables after bunch compressor (10 nC) :

Bunch energy spectra after compressor (10 nC) :

Emittance Growth Measured Using the 3-Bend Compressor First measurement :

Emx_v_betaxa

Emx_v_betax_s_3

Bunch compression for shielding experiments: