1. Not a Talk,
just a contribution
to the discussions

2. Chicane G. Stupakov FEL 2009 Modulator 1 + Chicane 1 Modulator 2
Laser1
Electron beam
Chicane
Radiator 1
Modulator 2
Laser2
Modulator 1
+ Chicane 1
Modulator 2
+ Chicane 2
G. Stupakov
FEL 2009

3. energy spread distribution
non-gaussian!

5. Bunching as a function of imprinted energy modulation
in the first Modulator

6. Bunching as a fuction of imprinted energy modulation
in the second Modulator

7. Second Chicane

9. 41 Harmonic, 4% Bunching,

10. ex / ey = 0.5 mm sz = 1.5 mm l1=l2= 267nm, 67th Harmonic , 2% Bunching
I=1600 A
l1=l2= 267nm,
67th Harmonic , 2% Bunching
Whole bunch seeded
13.6 m Undulator (intersection included)
S2E-simulation 20 pC FLASH
Igor Zagorodnov
Rad. exit
Rad. entrance
Unseeded beam
seeded beam
seeded beam
Unseeded beam
Unseeded beam

11. ex / ey = 0.5 mm sz = 15 mm l1=l2= 267nm 67th Harmonic , 2% Bunching
I=1600 A
l1=l2= 267nm
67th Harmonic , 2% Bunching
5fs seed pulselength
13.6 m Undulator (intersection included)
20 m Undulator (intersection included)