An ultrashort pulse ultra-violet radiation undulator source driven by a laser plasma wakefield accelerator
- SUPA, Department of Physics, University of Strathclyde, Glasgow G4 0NG (United Kingdom)
- Pulsar Physics, Burghstraat 47, 5614 BC Eindhoven (Netherlands)
- ASTeC, STFC, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom)
- SUPA, School of Engineering, Physics and Mathematics, University of Dundee, Dundee DD1 4HN (United Kingdom)
- School of Computing and Creative Technologies, University of Abertay Dundee, Dundee DD1 1HG (United Kingdom)
Narrow band undulator radiation tuneable over the wavelength range of 150–260 nm has been produced by short electron bunches from a 2 mm long laser plasma wakefield accelerator based on a 20 TW femtosecond laser system. The number of photons measured is up to 9 × 10{sup 6} per shot for a 100 period undulator, with a mean peak brilliance of 1 × 10{sup 18} photons/s/mrad{sup 2}/mm{sup 2}/0.1% bandwidth. Simulations estimate that the driving electron bunch r.m.s. duration is as short as 3 fs when the electron beam has energy of 120–130 MeV with the radiation pulse duration in the range of 50–100 fs.
- OSTI ID:
- 22303917
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 26; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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