Ciência-IUL
Publications
Publication Detailed Description
Journal Title
Physical Review Letters
Year (definitive publication)
2010
Language
English
Country
United States of America
More Information
Web of Science®
Scopus
Google Scholar
Abstract
The concepts of matched-beam, self-guided laser propagation and ionization-induced injection have been combined to accelerate electrons up to 1.45 GeV energy in a laser wakefield accelerator. From the spatial and spectral content of the laser light exiting the plasma, we infer that the 60 fs, 110 TW laser pulse is guided and excites a wake over the entire 1.3 cm length of the gas cell at densities below 1.5×1018cm-3. High-energy electrons are observed only when small (3%) amounts of CO2 gas are added to the He gas. Computer simulations confirm that it is the K-shell electrons of oxygen that are ionized and injected into the wake and accelerated to beyond 1 GeV energy.
Acknowledgements
--
Keywords
Fields of Science and Technology Classification
- Physical Sciences - Natural Sciences
Funding Records
Funding Reference | Funding Entity |
---|---|
SFRH/BD/35749/2007 | Fundação para a Ciência e a Tecnologia |