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Picosecond 14.7 nm interferometry of high intensity laser-produced plasmas

Published online by Cambridge University Press:  02 June 2005

JAMES DUNN ,
JORGE FILEVICH ,
RAYMOND F. SMITH ,
STEPHEN J. MOON ,
JORGE J. ROCCA ,
ROISIN KEENAN ,
JOSEPH NILSEN ,
VYACHESLAV N. SHLYAPTSEV ,
JAMES R. HUNTER  and
ANDREW NG
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JAMES DUNN
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA
JORGE FILEVICH
Affiliation:
NSF ERC for Extreme Ultraviolet Science and Technology and Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO
RAYMOND F. SMITH
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA
STEPHEN J. MOON
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA
JORGE J. ROCCA
Affiliation:
NSF ERC for Extreme Ultraviolet Science and Technology and Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO
ROISIN KEENAN
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA
JOSEPH NILSEN
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA
VYACHESLAV N. SHLYAPTSEV
Affiliation:
Department of Applied Science, University of California Davis-Livermore, Livermore, CA
JAMES R. HUNTER
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA
ANDREW NG
Affiliation:
Lawrence Livermore National Laboratory Livermore, Livermore, CA University of British Columbia, Vancouver
MARIO C. MARCONI
Affiliation:
NSF ERC for Extreme Ultraviolet Science and Technology and Department of Electrical and Computer Engineering, Colorado State University, Fort Collins, CO Department of Physics, University of Buenos Aires, Argentina
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Abstract

We have developed a compact, 14.7 nm, sub-5 ps X-ray laser source at Lawrence Livermore National Laboratory (LLNL) together with a Mach-Zehnder type diffraction grating interferometer built at Colorado State University for probing dense, high intensity laser-produced plasmas. The short wavelength and pulse length of the probe reduces refraction, absorption effects within the plasma and minimizes plasma motion blurring. This unique diagnostic capability gives precise two-dimensional (2D) density profile snapshots and is generating new data for rapidly evolving laser-heated plasmas. A review of the results from dense, mm-scale line focus plasma experiments will be described with detailed comparisons to hydrodynamic simulations.

Keywords

InterferometerLaser-produced plasmasX-ray laserX-ray optics
Type
Research Article
Information
Laser and Particle Beams , Volume 23 , Issue 1 , March 2005 , pp. 9 - 13
Copyright
2005 Cambridge University Press

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References

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