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Application of extremely compact capillary discharge soft x-ray lasers to dense plasma diagnostics

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dc.contributor.authorRocca, Jorge, J., author
dc.contributor.authorHammarsten, E. C., author
dc.contributor.authorJankowska, E., author
dc.contributor.authorFilevich, Jorge, author
dc.contributor.authorMarconi, Mario Carlos, author
dc.contributor.authorMoon, Stephen J., author
dc.contributor.authorShlyaptsev, Vyacheslav N., author
dc.contributor.authorAmerican Institute of Physics, publisher
dc.date.accessioned2015-07-28T16:06:29Z
dc.date.available2015-07-28T16:06:29Z
dc.date.issued2003
dc.description.abstractTable-top capillary discharge soft x-ray lasers combine the advantages of a small size and a high repetition rate with an extremely high brightness similar to that of their laboratory-size predecessors. When utilized to probe high density plasmas their short wavelength results in a higher critical density, reduced refraction, decreased free-electron absorption, and higher resolution as compared to optical probes. These characteristics allow the design of experiments capable of measuring the evolution of plasmas with density-scale length products that are outside the reach of optical lasers. This paper reviews the use of a 46.9 nm wavelength Ne-like Ar capillary discharge table-top laser in dense plasma diagnostics, and reports soft x-ray laser interferometry results of spot-focus Nd:YAG laser plasmas created at moderate irradiation intensity (~7×1012 W cm-2) with ; ~13 ns pulse width duration laser pulses. The measurements produced electron density maps with densities up to 0.9×1021 cm-3 that show the development of a concave electron density profile that differ significantly from those of a classical expansion. This two-dimensional behavior, that was recently also observed in line-focus plasmas, is analyzed here for the case of spot-focus plasmas with the assistance of hydrodynamic model simulations. The results demonstrate the use of a table-top soft x-ray laser interferometer as a new high resolution tool for the study of high density plasma phenomena and the validation of hydrodynamic codes.
dc.description.sponsorshipThis work was supported by the U.S. Department of Energy Grant No. DE-FG03-02NA00062 and by the National Science Foundation. Part of this work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory through the Institute of Laser Science and Application, under Contract No. W-7405-Eng-48.
dc.format.mediumborn digital
dc.format.mediumarticles
dc.identifier.bibliographicCitationRocca, J. J., et al., Application of Extremely Compact Capillary Discharge Soft X-Ray Lasers to Dense Plasma Diagnostics, Physics of Plasmas 10, no. 5 (May 2003): 2031-2038.
dc.identifier.urihttp://hdl.handle.net/10217/2113
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofFaculty Publications
dc.rights©2003 American Institute of Physics.
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.subjectplasma diagnostics
dc.subjectdischarges (electric)
dc.subjectplasma density
dc.titleApplication of extremely compact capillary discharge soft x-ray lasers to dense plasma diagnostics
dc.typeText

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