Table 1: Parameters of the undulator radiation measurement.

Parameters Values
Beam energy 4.6 MeV
Energy spread 1.3%
Laser pulse duration 6 ps (FWHM)
Laser size at cathode (Hor./Ver.) 0.4/0.5 mm rms
Laser distribution (Hor./Ver.) Gaussian/Gaussian
Number of laser pulse per macropulse 1 to 4 pulses
Solenoid magnetic field 163 to 194 mT
R56 of the magnetic chicane 0, -47.1 mm
Undulator gap 30 to 55 mm