Conference paper Open Access
A possible THz Radiation Source with a Train of Short Pulses in the SPARC high brightness photoinjector
Boscolo Manuela
A radiofrequency electron gun followed by a compressor can generate trains of terahertz sub- picosecond electron pulses by illuminating the photocathode with a comb laser pulse. Any radiation process which does not change the electron distribution can be used to study the coherent spectrum of radiation emitted by a comb electron bunch. The coherent part of the spectrum is strongly enhanced by its N2 dependence, where N is the number of particles in the bunch, being interesting both as possible source of Far-Infrared Radiation (FIR) and as diagnostic tool of the bunch structure.
A feasibility study for a possible experiment at SPARC to be realized with the addition of a dedicated magnetic chicane is discussed. An optimization study of a magnetic chicane with a negative and variable R56 is studied, together with a set of parameters relative to the SPARC machine with the intent of demonstrating the feasibility of this experiment. The dynamics is studied within the SPARC system with the PARMELA code.
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- Publication date:
- June 27, 2008
- DOI:
-
- Keyword(s):
- THz radiation source, photoinjectors, FEL, electron linac
- Meeting:
- 11th European Particle Accelerator Conference (EPAC08), Genoa, Italy, 23-27 June 2008 (Session T12 )
- Communities:
- License (for files):
- Creative Commons Attribution 4.0