Influence of shock waves on laser-driven proton acceleration
(2007) In Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 76(2).- Abstract
- The influence of shock waves, driven by amplified spontaneous emission (ASE), on laser-accelerated proton beams is investigated. A local deformation, produced by a cold shock wave launched by the ablation pressure of the ASE pedestal, can under oblique laser irradiation significantly direct the proton beam toward the laser axis. This can be understood in the frame of target normal sheath acceleration as proton emission from an area of the target where the local target normal is shifted toward the laser axis. Hydrodynamic simulations and experimental data show that there exists a window in laser and target parameter space where the target can be significantly deformed and yet facilitate efficient proton acceleration. The dependence of the... (More)
- The influence of shock waves, driven by amplified spontaneous emission (ASE), on laser-accelerated proton beams is investigated. A local deformation, produced by a cold shock wave launched by the ablation pressure of the ASE pedestal, can under oblique laser irradiation significantly direct the proton beam toward the laser axis. This can be understood in the frame of target normal sheath acceleration as proton emission from an area of the target where the local target normal is shifted toward the laser axis. Hydrodynamic simulations and experimental data show that there exists a window in laser and target parameter space where the target can be significantly deformed and yet facilitate efficient proton acceleration. The dependence of the magnitude of the deflection on target material, foil thickness, and ASE pedestal intensity and duration is experimentally investigated. The deflection angle is found to increase with increasing ASE intensity and duration and decrease with increasing target thickness. In a comparison between aluminum and copper target foils, aluminum is found to yield a larger proton beam deflection. An analytic model is successfully used to predict the proton emission direction. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/688707
- author
- Lundh, Olle LU ; Lindau, Filip LU ; Persson, Anders LU ; Wahlström, Claes-Göran LU ; McKenna, P and Batani, D
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)
- volume
- 76
- issue
- 2
- publisher
- American Physical Society
- external identifiers
-
- wos:000249154700067
- scopus:34548432636
- pmid:17930159
- ISSN
- 1539-3755
- DOI
- 10.1103/PhysRevE.76.026404
- language
- English
- LU publication?
- yes
- id
- f51c1f48-95bb-4c11-aa8a-1e1b8537e38e (old id 688707)
- date added to LUP
- 2016-04-01 12:27:36
- date last changed
- 2022-02-18 22:49:26
@article{f51c1f48-95bb-4c11-aa8a-1e1b8537e38e,
abstract = {{The influence of shock waves, driven by amplified spontaneous emission (ASE), on laser-accelerated proton beams is investigated. A local deformation, produced by a cold shock wave launched by the ablation pressure of the ASE pedestal, can under oblique laser irradiation significantly direct the proton beam toward the laser axis. This can be understood in the frame of target normal sheath acceleration as proton emission from an area of the target where the local target normal is shifted toward the laser axis. Hydrodynamic simulations and experimental data show that there exists a window in laser and target parameter space where the target can be significantly deformed and yet facilitate efficient proton acceleration. The dependence of the magnitude of the deflection on target material, foil thickness, and ASE pedestal intensity and duration is experimentally investigated. The deflection angle is found to increase with increasing ASE intensity and duration and decrease with increasing target thickness. In a comparison between aluminum and copper target foils, aluminum is found to yield a larger proton beam deflection. An analytic model is successfully used to predict the proton emission direction.}},
author = {{Lundh, Olle and Lindau, Filip and Persson, Anders and Wahlström, Claes-Göran and McKenna, P and Batani, D}},
issn = {{1539-3755}},
language = {{eng}},
number = {{2}},
publisher = {{American Physical Society}},
series = {{Physical Review E (Statistical, Nonlinear, and Soft Matter Physics)}},
title = {{Influence of shock waves on laser-driven proton acceleration}},
url = {{http://dx.doi.org/10.1103/PhysRevE.76.026404}},
doi = {{10.1103/PhysRevE.76.026404}},
volume = {{76}},
year = {{2007}},
}