Bunch compression in the ATF2 M. Pivi, A. Seryi, P. T. February 15, 2005 SLAC Feb 2005

FF optics: with IP  x,y = 4.0,0.1mm, L*=1 m. ATF2 Extraction line with chicane and NLC-like final focus optics

Computing R 56 and T 566 from each position to IP

In the 2 nd order approximation (U 5666 << T 566 ) RF cavity for bunch compression

V RF =10 MV =0.05m  RF = 0.38m long cavity at 25MV/m Bunch compression

 RF = VRF=10 MV =0.05m  RF = RF = Previous:  RF = Different phases