Control of tunable, monoenergetic laser-plasma-accelerated electron beams using a shock-induced density downramp injector
Abstract
Control of the properties of laser-plasma-accelerated electron beams that were injected along a shock-induced density downramp through precision tailoring of the density profile was demonstrated using a 1.8 J, 45 fs laser interacting with a mm-scale gas jet. The effects on the beam spatial profile, steering, and absolute energy spread of the density region before the shock and tilt of the shock were investigated experimentally and with particle-in-cell simulations. By adjusting these density parameters, the electron beam quality was controlled and improved while the energy (30-180 MeV) and energy spread (2-11 MeV) were independently tuned. Simple models that are in good agreement with the experimental results are proposed to explain these relationships, advancing the understanding of downramp injection. In conclusion, this technique allows for high-quality electron beams with percent-level energy spread to be tailored based on the application.
- Authors:
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1360864
- Alternate Identifier(s):
- OSTI ID: 1440952
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Accelerators and Beams Journal Volume: 20 Journal Issue: 5; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Swanson, K. K., Tsai, H. -E., Barber, S. K., Lehe, R., Mao, H. -S., Steinke, S., van Tilborg, J., Nakamura, K., Geddes, C. G. R., Schroeder, C. B., Esarey, E., and Leemans, W. P. Control of tunable, monoenergetic laser-plasma-accelerated electron beams using a shock-induced density downramp injector. United States: N. p., 2017.
Web. doi:10.1103/PhysRevAccelBeams.20.051301.
Swanson, K. K., Tsai, H. -E., Barber, S. K., Lehe, R., Mao, H. -S., Steinke, S., van Tilborg, J., Nakamura, K., Geddes, C. G. R., Schroeder, C. B., Esarey, E., & Leemans, W. P. Control of tunable, monoenergetic laser-plasma-accelerated electron beams using a shock-induced density downramp injector. United States. https://doi.org/10.1103/PhysRevAccelBeams.20.051301
Swanson, K. K., Tsai, H. -E., Barber, S. K., Lehe, R., Mao, H. -S., Steinke, S., van Tilborg, J., Nakamura, K., Geddes, C. G. R., Schroeder, C. B., Esarey, E., and Leemans, W. P. Tue .
"Control of tunable, monoenergetic laser-plasma-accelerated electron beams using a shock-induced density downramp injector". United States. https://doi.org/10.1103/PhysRevAccelBeams.20.051301.
@article{osti_1360864,
title = {Control of tunable, monoenergetic laser-plasma-accelerated electron beams using a shock-induced density downramp injector},
author = {Swanson, K. K. and Tsai, H. -E. and Barber, S. K. and Lehe, R. and Mao, H. -S. and Steinke, S. and van Tilborg, J. and Nakamura, K. and Geddes, C. G. R. and Schroeder, C. B. and Esarey, E. and Leemans, W. P.},
abstractNote = {Control of the properties of laser-plasma-accelerated electron beams that were injected along a shock-induced density downramp through precision tailoring of the density profile was demonstrated using a 1.8 J, 45 fs laser interacting with a mm-scale gas jet. The effects on the beam spatial profile, steering, and absolute energy spread of the density region before the shock and tilt of the shock were investigated experimentally and with particle-in-cell simulations. By adjusting these density parameters, the electron beam quality was controlled and improved while the energy (30-180 MeV) and energy spread (2-11 MeV) were independently tuned. Simple models that are in good agreement with the experimental results are proposed to explain these relationships, advancing the understanding of downramp injection. In conclusion, this technique allows for high-quality electron beams with percent-level energy spread to be tailored based on the application.},
doi = {10.1103/PhysRevAccelBeams.20.051301},
journal = {Physical Review Accelerators and Beams},
number = 5,
volume = 20,
place = {United States},
year = {Tue May 30 00:00:00 EDT 2017},
month = {Tue May 30 00:00:00 EDT 2017}
}
https://doi.org/10.1103/PhysRevAccelBeams.20.051301
Web of Science
Figures / Tables:
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Figures / Tables found in this record: