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Journal articles
Observation of Synchrotron Radiation from Electrons Accelerated in a Petawatt-Laser-Generated Plasma Cavity
S. Kneip
1
S. R. Nagel
1
C. Bellei
1
N. Bourgeois
2
A.E. Dangor
1
A. Gopal
3
R. Heathcote
4
S.P.D Mangles
1
J.R. Marques
2
A. Maksimchuk
5
P. M. Nilson
1
Kim Ta Phuoc
6
S. Reed
5
M. Tzoufras
7
F. S. Tsung
7
L. Willingale
1
W. B. Mori
7
Antoine Rousse
6
Karl Krushelnick
1, 5
Z. Najmudin
1
J.R. Marques 2
Author IdHAL : jean-raphael-marques ORCID : https://orcid.org/0000-0002-4770-7201
A. Maksimchuk 5
Author
P. M. Nilson 1
Author
Kim Ta Phuoc 6
Author IdHAL : kim-ta-phuoc
W. B. Mori 7
Author
Antoine Rousse 6
Author IdHAL : antoine-rousse
Karl Krushelnick 1, 5
Author
Z. Najmudin 1
Author
1
Blackett Laboratory (Prince Consort Road, South Kensington, London SW7 2AZ - United Kingdom)
- Imperial College London (South Kensington Campus, London SW7 2AZ - United Kingdom)
2
LULI - Laboratoire pour l'utilisation des lasers intenses (LULI, École Polytechnique, route de Saclay 91128 Palaiseau Cedex, France LULI, Université Pierre et Marie Curie (Paris 6) 3 rue Galilée 9420 Ivry-sur-Seine, France - France)
- UPMC - Université Pierre et Marie Curie - Paris 6 (4 place Jussieu - 75005 Paris - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DAM/DIF (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7605 (France)
3
Department of Electronics (Romanou, 3-GR73133 Chania - Greece)
4
CLF - Central Laser Facility (Chilton, Didcot, Oxon OX11 0QX - United Kingdom)
- RAL - STFC Rutherford Appleton Laboratory (Harwell Campus, Didcot OX11 0FA - United Kingdom)
- STFC - Science and Technology Facilities Council (Polaris House, North Star Avenue, Swindon SN2 1SZ - United Kingdom)
5
CUOS - Center for Ultrafast Optical Sciences (1006 Institute of Science and Technology Building, 2200 bonisteel Boulevard, Ann Arbor, MI 48109-2099 - United States)
- University of Michigan [Ann Arbor] (500 Church Street Ann Arbor, MI 48109-1090 - United States)
- University of Michigan System (Michigan - United States)
6
LOA - Laboratoire d'optique appliquée (828, boulevard des Maréchaux 91762 Palaiseau Cedex - France)
- ENSTA Paris - École Nationale Supérieure de Techniques Avancées (828, boulevard des Maréchaux 91762 Palaiseau Cedex - France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7639 (France)
7
Department of Physics and Astronomy [UCLA, Los Angeles] (Los Angeles, CA 90095-1547 - United States)
- UCLA - University of California [Los Angeles] ( Los Angeles, Californie 90095 - United States)
- University of California (United States)
Abstract : The dynamics of plasma electrons in the focus of a petawatt laser beam are studied via measurements of their x-ray synchrotron radiation. With increasing laser intensity, a forward directed beam of x rays extending to 50 keV is observed. The measured x rays are well described in the synchrotron asymptotic limit of electrons oscillating in a plasma channel. The critical energy of the measured synchrotron spectrum is found to scale as the Maxwellian temperature of the simultaneously measured electron spectra. At low laser intensity transverse oscillations are negligible as the electrons are predominantly accelerated axially by the laser generated wakefield. At high laser intensity, electrons are directly accelerated by the laser and enter a highly radiative regime with up to 5% of their energy converted into x rays.
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Journal articles
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https://hal-polytechnique.archives-ouvertes.fr/hal-00515627
Contributor : Thuy Le <>
Submitted on : Tuesday, September 7, 2010 - 4:40:46 PM
Last modification on : Thursday, December 10, 2020 - 1:34:02 PM
Contributor : Thuy Le <>
Submitted on : Tuesday, September 7, 2010 - 4:40:46 PM
Last modification on : Thursday, December 10, 2020 - 1:34:02 PM
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- HAL Id : hal-00515627, version 1
- DOI : 10.1103/PhysRevLett.100.105006
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Citation
S. Kneip, S. R. Nagel, C. Bellei, N. Bourgeois, A.E. Dangor, et al.. Observation of Synchrotron Radiation from Electrons Accelerated in a Petawatt-Laser-Generated Plasma Cavity. Physical Review Letters, American Physical Society, 2008, 100 (10), pp.105006. ⟨10.1103/PhysRevLett.100.105006⟩. ⟨hal-00515627⟩
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