Title :
Upgrade of the BESSY femtoslicing source
Author :
Quast, T. ; Firsov, A. ; Holldack, K. ; Khan, S. ; Mitzner, R.
Author_Institution :
BESSY, Berlin
Abstract :
As the first undulator-based source, the BESSY femtoslicing source has succesfully demonstrated its capabilities of providing 100 fs x-ray pulses in an energy range from 400 to 1400 eV with linear and circular polarisation. Even with a better signal-to-noise ration compared to the slicing sources utilizing radiation from a bending magnet the number of detected photons at the user frontend is still limited to ap 103/s. To increase the photon flux the laser system was upgraded to a higher repetition rate. A new beamline utilizing a reflective zone-plate was installed. Finally a new vacuum guided laser beam path will be implemented for better stability.
Keywords :
accelerator magnets; electron accelerators; high-speed optical techniques; laser beams; light sources; particle beam stability; storage rings; wigglers; ALS; BESSY femtoslicing source; bending magnet; circular polarisation; electron volt energy 400 eV to 1400 eV; laser system; linear polarisation; photon flux; radiation; reflective zone-plate; stability; time 100 fs; undulator-based source; vacuum guided laser beam path; x-ray pulses; Laser excitation; Laser modes; Laser stability; Magnetic flux; Polarization; Pulse amplifiers; Pump lasers; Ring lasers; Signal to noise ratio; X-ray lasers;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4440945
