Speaker
Dr
Marie Kristin Czwalinna
(DESY)
Description
Free electron laser facilities, such as the European XFEL and FLASH, have increasingly high demands on the temporal stability of the electron bunches, as pump-probe experiments meanwhile aim for timing stabilities of few femtoseconds residual jitter only.
For a beambased feedback control of the linear accelerator, bunch arrival-time monitors are required that are capable of reaching measurement resolutions better than the stated timing stability goals.
We report on our electro-optical bunch arrival-time monitors now achieving a time resolution better than 3 fs.
This new level of precision is a first step towards the ultimate goal of reaching sub-femtosecond timing stability.
The system has also been upgraded to allow for multi-beam line operation with large variations of the bunch arrival times for the different pulse trains.
The characteristics of the bunch arrival-time monitor system and limitations of the state-of-the-art design will be discussed.
Primary author
Dr
Marie Kristin Czwalinna
(DESY)
