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Title: Hot Surface Ionic Line Emission and Cold K-Inner Shell Emission from Petawatt-Laser-Irradiated Cu Foil Targets

Abstract

A hot, 2 to 3 keV electron temperature surface plasma was observed in the interaction of a 0.7 ps petawatt laser beam with solid copper-foil targets at intensities >10^20 W/cm^2. Copper K-shell spectra were measured in the range of 8 to 9 keV using a single-photon-counting x-ray charged-coupled-device camera. In addition to K-sub alpha and K-sub beta inner shell lines, the emission contained the Cu He-sub alpha and Ly-sub alpha lines, allowing the temperature to be inferred. Measurements of the absolute K-sub alpha yield as a function of the laser intensity are in general agreement with a model that inlcudes refluxing and confinement of the suprathermal electrons in the target volume.

Authors:
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Publication Date:
Research Org.:
Laboratory for Laser Energetics, University of Rochester, Rochester, NY
Sponsoring Org.:
USDOE
OSTI Identifier:
881716
Report Number(s):
DOE/SF/19460-665
1627; 2005-142
DOE Contract Number:
FC52-92SF19460
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 13
Country of Publication:
United States
Language:
English

Citation Formats

Theobald, W., Akli, K., Clarke, R., Delettrez, J.A., Freeman, R.R., Glenzer, S., Green, J., Gregori, G., Heathcote, R., Izumi, N., King, J.A., Koch, J.A., Kuba, J., Lancaster, K., MacKinnon, A.J., Key, M., Mileham, C., Myatt, J., Neely, D., Norreys, P.A., Park, H.-S., Pasley, J., Patel, P., Regan, S.P., Sawada, H., Shepherd, R., Snavely, R., Stephens, R.B., Stoeckl, C., Storm, M., Zhang, B., and Sangster, T.C.. Hot Surface Ionic Line Emission and Cold K-Inner Shell Emission from Petawatt-Laser-Irradiated Cu Foil Targets. United States: N. p., 2006. Web. doi:10.1063/1.2188912.
Theobald, W., Akli, K., Clarke, R., Delettrez, J.A., Freeman, R.R., Glenzer, S., Green, J., Gregori, G., Heathcote, R., Izumi, N., King, J.A., Koch, J.A., Kuba, J., Lancaster, K., MacKinnon, A.J., Key, M., Mileham, C., Myatt, J., Neely, D., Norreys, P.A., Park, H.-S., Pasley, J., Patel, P., Regan, S.P., Sawada, H., Shepherd, R., Snavely, R., Stephens, R.B., Stoeckl, C., Storm, M., Zhang, B., & Sangster, T.C.. Hot Surface Ionic Line Emission and Cold K-Inner Shell Emission from Petawatt-Laser-Irradiated Cu Foil Targets. United States. doi:10.1063/1.2188912.
Theobald, W., Akli, K., Clarke, R., Delettrez, J.A., Freeman, R.R., Glenzer, S., Green, J., Gregori, G., Heathcote, R., Izumi, N., King, J.A., Koch, J.A., Kuba, J., Lancaster, K., MacKinnon, A.J., Key, M., Mileham, C., Myatt, J., Neely, D., Norreys, P.A., Park, H.-S., Pasley, J., Patel, P., Regan, S.P., Sawada, H., Shepherd, R., Snavely, R., Stephens, R.B., Stoeckl, C., Storm, M., Zhang, B., and Sangster, T.C.. Thu . "Hot Surface Ionic Line Emission and Cold K-Inner Shell Emission from Petawatt-Laser-Irradiated Cu Foil Targets". United States. doi:10.1063/1.2188912.
@article{osti_881716,
title = {Hot Surface Ionic Line Emission and Cold K-Inner Shell Emission from Petawatt-Laser-Irradiated Cu Foil Targets},
author = {Theobald, W. and Akli, K. and Clarke, R. and Delettrez, J.A. and Freeman, R.R. and Glenzer, S. and Green, J. and Gregori, G. and Heathcote, R. and Izumi, N. and King, J.A. and Koch, J.A. and Kuba, J. and Lancaster, K. and MacKinnon, A.J. and Key, M. and Mileham, C. and Myatt, J. and Neely, D. and Norreys, P.A. and Park, H.-S. and Pasley, J. and Patel, P. and Regan, S.P. and Sawada, H. and Shepherd, R. and Snavely, R. and Stephens, R.B. and Stoeckl, C. and Storm, M. and Zhang, B. and Sangster, T.C.},
abstractNote = {A hot, 2 to 3 keV electron temperature surface plasma was observed in the interaction of a 0.7 ps petawatt laser beam with solid copper-foil targets at intensities >10^20 W/cm^2. Copper K-shell spectra were measured in the range of 8 to 9 keV using a single-photon-counting x-ray charged-coupled-device camera. In addition to K-sub alpha and K-sub beta inner shell lines, the emission contained the Cu He-sub alpha and Ly-sub alpha lines, allowing the temperature to be inferred. Measurements of the absolute K-sub alpha yield as a function of the laser intensity are in general agreement with a model that inlcudes refluxing and confinement of the suprathermal electrons in the target volume.},
doi = {10.1063/1.2188912},
journal = {Physics of Plasmas},
number = ,
volume = 13,
place = {United States},
year = {Thu Apr 27 00:00:00 EDT 2006},
month = {Thu Apr 27 00:00:00 EDT 2006}
}