Bibliographic Details
| Title: |
Down-ramp injection and independently controlled acceleration of electrons in a tailored laser wakefield accelerator |
| Authors: |
M. Hansson, B. Aurand, X. Davoine, H. Ekerfelt, K. Svensson, A. Persson, C.-G. Wahlström, O. Lundh |
| Source: |
Physical Review Special Topics. Accelerators and Beams, Vol 18, Iss 7, p 071303 (2015) |
| Publisher Information: |
American Physical Society, 2015. |
| Publication Year: |
2015 |
| Collection: |
LCC:Nuclear and particle physics. Atomic energy. Radioactivity |
| Subject Terms: |
Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798 |
| More Details: |
We report on a study on controlled injection of electrons into the accelerating phase of a plasma wakefield accelerator by tailoring the target density distribution using two independent sources of gas. The tailored density distribution is achieved experimentally by inserting a narrow nozzle, with an orifice diameter of only 400 μm, into a jet of gas supplied from a 2 mm diameter nozzle. The combination of these two nozzles is used to create two regions of different density connected by a density gradient. Using this setup we show independent control of the charge and energy distribution of the bunches of accelerated electron as well as decreased shot-to-shot fluctuations in these quantities compared to self-injection in a single gas jet. Although the energy spectra are broad after injection, simulations show that further acceleration acts to compress the energy distribution and to yield peaked energy spectra. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1098-4402 |
| Relation: |
https://doaj.org/toc/1098-4402 |
| DOI: |
10.1103/PhysRevSTAB.18.071303 |
| Access URL: |
https://doaj.org/article/51633d6d94714e31889036eade9d1395 |
| Accession Number: |
edsdoj.51633d6d94714e31889036eade9d1395 |
| Database: |
Directory of Open Access Journals |
