High-intensity laser-plasma interaction with wedge-shaped-cavity targets

High-intensity, short-pulse laser-interaction experiments with small-mass, wedge-shaped-cavity Cu targets are presented. The diagnostics provided spatially and spectrally resolved measurements of the Cu K α line emission at 8 keV. The conversion efficiency of short-pulse laser energy into fast elect...

Full description

Saved in:
Bibliographic Details
Published in:Physics of plasmas 2010-10, Vol.17 (10), p.103101-103101-7
Main Authors: Theobald, W., Ovchinnikov, V., Ivancic, S., Eichman, B., Nilson, P. M., Delettrez, J. A., Yan, R., Li, G., Marshall, F. J., Meyerhofer, D. D., Myatt, J. F., Ren, C., Sangster, T. C., Stoeckl, C., Zuegel, J. D., Van Woerkom, L., Freeman, R. R., Akli, K. U., Giraldez, E., Stephens, R. B.
Format: Article
Language:English
Subjects:
07 ISOTOPES AND RADIATION SOURCES
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CONVERSION
EFFICIENCY
LASER-PRODUCED PLASMA
PLASMA
PLASMA DIAGNOSTICS
PLASMA SIMULATION
SIMULATION
TWO-DIMENSIONAL CALCULATIONS
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:High-intensity, short-pulse laser-interaction experiments with small-mass, wedge-shaped-cavity Cu targets are presented. The diagnostics provided spatially and spectrally resolved measurements of the Cu K α line emission at 8 keV. The conversion efficiency of short-pulse laser energy into fast electrons was inferred from the x-ray yield for wedge opening angles between 30° and 60° and for s - and p -polarized laser irradiation. Up to 36 ± 7 % conversion efficiency was measured for the narrowest wedge with p -polarization. The results are compared with predictions from two-dimensional particle-in-cell simulations.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.3484217