Controlling the spectrum of x-rays generated in a laser-plasma accelerator by tailoring the laser wavefront
Författare
Summary, in English
By tailoring the wavefront of the laser pulse used in a laser-wakefield accelerator, we show that the properties of the x-rays produced due to the electron beam's betatron oscillations in the plasma can be controlled. By creating a wavefront with coma, we find that the critical energy of the synchrotronlike x-ray spectrum can be significantly increased. The coma does not substantially change the energy of the electron beam, but does increase its divergence and produces an energy-dependent exit angle, indicating that changes in the x-ray spectrum are due to an increase in the electron beam's oscillation amplitude within the wakefield.
Avdelning/ar
Publiceringsår
2009
Språk
Engelska
Publikation/Tidskrift/Serie
Applied Physics Letters
Volym
95
Issue
18
Fulltext
- Available as PDF - 345 kB
- Download statistics
Dokumenttyp
Artikel i tidskrift
Förlag
American Institute of Physics (AIP)
Ämne
- Atom and Molecular Physics and Optics
Nyckelord
- accelerators
- wakefield
- plasma X-ray sources
- betatrons
- plasma accelerators
Status
Published
ISBN/ISSN/Övrigt
- ISSN: 0003-6951