Observation of coherent synchrotron radiation from a 1-mm electron bunch at the MAX-I storage ring

1999 ◽  
Author(s):  
Ake Andersson ◽  
Matthew S. Johnson ◽  
Bengt Nelander
Keyword(s):  
Synchrotron Radiation ◽  
Storage Ring ◽  
Electron Bunch ◽  
Coherent Synchrotron Radiation

scholarly journals Cross-Correlation of THz Pulses from the Electron Storage Ring BESSY II

2020 ◽  
Vol 5 (2) ◽  
pp. 24
Author(s):  
Ulrich Schade ◽  
Peter Kuske ◽  
Jongseok Lee ◽  
Barbara Marchetti ◽  
Michele Ortolani
Keyword(s):  
Synchrotron Radiation ◽  
Storage Ring ◽  
Time Domain ◽  
Cross Correlation ◽  
Bunch Length ◽  
Pump Probe ◽  
Electron Storage ◽  
Coherent Synchrotron Radiation ◽  
Longitudinal Length ◽  
The Time Domain

Coherent synchrotron radiation from an electron storage ring is observed in the THz spectral range when the bunch length is shortened down to the sub-mm-range. With increasing stored current, the bunch becomes longitudinally unstable and modulates the THz emission in the time domain. These micro-instabilities are investigated at the electron storage ring BESSY II by means of cross-correlation of the THz fields from successive bunches. The investigations allow deriving the longitudinal length scale of the micro bunch fluctuations and show that it grows faster than the current-dependent bunch length. Our findings will help to set the limits for the possible time resolution for pump-probe experiments achieved with coherent THz synchrotron radiation from a storage ring.

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