Tonutti, M.
(Manfred Tonutti)

TUPOS06 Bunch Length Measurements at the SLS Linac Using Electro Optical Sampling
Bernd Steffen, Sara Casalbuoni, Peter Schmüser, Stefan Simrock (DESY, Hamburg), Timo Korhonen, Thomas Schilcher, Volker Schlott, Hans Sigg, Daniel Suetterlin (PSI, Villigen), Manfred Tonutti, Axel Winter (RWTH, Aachen)

The temporal profile of the electron bunches in the SLS Linac was determined by means of electro-optical techniques. In a first experiment a mode locked Ti:Sa Laser with 15 fs pulse width (FWHM) was used for coincidence and sampling measurements between the laser pulse and the coherent transition radiation (CTR) generated by short electron bunches. A synchronization accuracy of 70 fs rms between the 3 GHz Linac RF and the 81 MHz repetition frequency of the laser was achieved, which is important for the optimum time resolution of the applied electro-optical sampling technique. In a second experiment a mode locked Nd:YAG laser with 400 ps long pulses will be used for electro-optical autocorrelation measurements between the CTR and the laser pulses. This alternative technique promises single shot capability and requires much relaxed synchronization stability between laser and electron beam.