Uni HH, Hamburg
The time resolution of experiments with synchrotron radiation, presently limited by a typical bunch length of 30–100 ps in electron storage rings, can be improved by making the bunches shorter (e.g. reducing the momentum-compaction factor or increasing the rf gradient) or by establishing a temporal-transverse correlation (e.g. transverse rf deflection or fs-laser slicing). Several methods, their present status and their respective merits or shortcomings are discussed.
Uni HH, Hamburg
Intrinsic synchronization of laser pump and X-ray probe pulses is one of the key features of the fs slicing scheme published by A. Zholents and M. Zolotorev (PRL 76 (1996), p. 912), allowing to obtain 100 fs time resolution while timing laser pulses on the ps and ns level. This paper reports the relevant issues as experienced at the BESSY slicing source in Berlin.