Research output per year
Research output per year
Description
Theoretical model describing self-injection of electron in laser-plasma wakefield accelerator near the threshold regime. This process is crucial in determining the electron bunch properties.
In this paper we show that injection occurs due to the localised charge density build-up in the sheath crossing region at the rear of the bubble, which has the effect of increasing the accelerating potential to above a critical value. Injected electron bunch duration is determined by the dwell time above this critical value, which explains why single or multiple ultra-short electron bunches are formed in the first bubble. We have performed a series of 3-D particle-in-cell simulations (OSIRIS) to compared our model as well as experimental measurements on the ALPHA-X beam line.
In this paper we show that injection occurs due to the localised charge density build-up in the sheath crossing region at the rear of the bubble, which has the effect of increasing the accelerating potential to above a critical value. Injected electron bunch duration is determined by the dwell time above this critical value, which explains why single or multiple ultra-short electron bunches are formed in the first bubble. We have performed a series of 3-D particle-in-cell simulations (OSIRIS) to compared our model as well as experimental measurements on the ALPHA-X beam line.
| Date made available | 2016 |
|---|---|
| Publisher | University of Strathclyde |
| Date of data production | 31 Aug 2015 |
Research output
- 1 Article
-
Near-threshold electron injection in the laser-plasma wakefield accelerator leading to femtosecond bunches
Islam, M. R., Brunetti, E., Shanks, R. P., Ersfeld, B., Issac, R. C., Cipiccia, S., Anania, M. P., Welsh, G. H., Wiggins, S. M., Noble, A., Cairns, R. A., Raj, G. & Jaroszynski, D. A., 17 Sept 2015, In: New Journal of Physics. 17, 12 p., 093033.Research output: Contribution to journal › Article › peer-review
Open AccessFile39 Citations (Scopus)125 Downloads (Pure)
Projects
- 4 Finished
-
University Of Strathclyde - Equipment Account
Gachagan, A. (Principal Investigator), He, W. (Principal Investigator), Jaroszynski, D. (Principal Investigator), Martin, R. (Principal Investigator), McArthur, S. (Principal Investigator), McArthur, S. (Principal Investigator), Connolly, P. (Co-investigator), Edwards, P. (Co-investigator), Faulds, K. (Co-investigator), Florence, A. (Co-investigator), Graham, D. (Co-investigator), Leithead, B. (Co-investigator), Sefcik, J. (Co-investigator), Ter Horst, J. (Co-investigator), Trager-Cowan, C. (Co-investigator), Uttamchandani, D. (Co-investigator) & Wark, A. (Co-investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/08/13 → 28/02/23
Project: Research
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EUCARD2
Jaroszynski, D. (Principal Investigator)
European Commission - FP7 - Cooperation only
1/05/13 → 30/04/17
Project: Research
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LASERLAB-EUROPE
Jaroszynski, D. (Principal Investigator)
European Commission - FP7 - Cooperation only
1/06/12 → 30/11/15
Project: Research