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Abstract
In high-spectral resolution experiments with the petawatt Vulcan laser, strong x-ray radiation of KK hollow atoms (atoms without n = 1 electrons) from thin Al foils was observed at pulse intensities of 3 x 10(20) W/cm(2). The observations of spectra from these exotic states of matter are supported by detailed kinetics calculations, and are consistent with a picture in which an intense polychromatic x-ray field, formed from Thomson scattering and bremsstrahlung in the electrostatic fields at the target surface, drives the KK hollow atom production. We estimate that this x-ray field has an intensity of >5 x 10(18) W/cm(2) and is in the 3 keV range.
Original language | English |
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Article number | 125001 |
Number of pages | 5 |
Journal | Physical Review Letters |
Volume | 110 |
Issue number | 12 |
DOIs | |
Publication status | Published - 18 Mar 2013 |
Keywords
- petawatt Vulcan laser
- laser plasma
- atom production
- high-spectral resolution
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Dive into the research topics of 'Exotic dense-matter states pumped by a relativistic laser plasma in the radiation-dominated regime'. Together they form a unique fingerprint.Projects
- 2 Finished
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Multi-PetaWatt Laser-Plasma Interactions: A New Frontier in Physics
McKenna, P. (Fellow)
EPSRC (Engineering and Physical Sciences Research Council)
1/03/12 → 28/02/17
Project: Research Fellowship
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KEY PHYSICS FOR INERTIAL CONFINEMENT DIAGNOSED BY ION EMISSION
McKenna, P. (Principal Investigator)
EPSRC (Engineering and Physical Sciences Research Council)
1/10/07 → 30/09/11
Project: Research