Abstract
The longitudinal profiles of ultrashort relativistic electron bunches at the soft x-ray free-electron laser FLASH have been investigated using two single-shot detection schemes: an electro-optic (EO) detector measuring the Coulomb field of the bunch and a radio-frequency structure transforming the charge distribution into a transverse streak. A comparison permits an absolute calibration of the EO technique. EO signals as short as 60 fs (rms) have been observed, which is a new record in the EO detection of single electron bunches and close to the limit given by the EO material properties. © 2007 The American Physical Society
Original language | English |
---|---|
Pages (from-to) | 164801-1-164801-5 |
Journal | Physical Review Letters |
Volume | 99 |
DOIs | |
Publication status | Published - Oct 2007 |
Keywords
- Electron beams
- Charge distribution
- Electrooptical devices
- Ultrashort pulses
- Coulomb field
- Electrooptic monitors
- Radio-frequency structure