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Title: Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe

Abstract

Uniform density and temperature Xe plasmas have been produced over >4 mm scale-lengths using x-rays generated in a cylindrical Pb cavity. The cavity is 750 {mu}m in depth and diameter, and is heated by a 300 J, 2 ns square, 1054 nm laser pulse focused to a spot size of 200 {mu}m at the cavity entrance. The plasma is characterized by simultaneous imaging Thomson scattering measurements from both the electron and ion scattering features. The electron feature measurement determines the spatial electron density and temperature profile, and using these parameters as constraints in the ion feature analysis allows an accurate determination of the charge state of the Xe ions. The Thomson scattering probe beam is 40 J, 200 ps, and 527 nm, and is focused to a 100 {mu}m spot size at the entrance of the Pb cavity. Each system has a spatial resolution of 25 {mu}m, a temporal resolution of 200 ps (as determined by the probe duration), and a spectral resolution of 2 nm for the electron feature system and 0.025 nm for the ion feature system. The experiment is performed in a Xe filled target chamber at a neutral pressure of 3-10 Torr, and the x-rays producedmore » in the Pb ionize and heat the Xe to a charge state of 20{+-}4 at up to 200 eV electron temperatures.« less

Authors:
 [1];  [1]; ; ; ;  [1];  [2];  [3];  [4]
  1. Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States)
  2. University of California, Los Angeles, 405 Hilgard Ave., Los Angeles, California 90095 (United States)
  3. Columbia University, 116th Street and Broadway, New York, New York 10027 (United States)
  4. University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093 (United States)
Publication Date:
OSTI Identifier:
22093944
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 83; Journal Issue: 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; BEAMS; CHARGE STATES; ELECTRON DENSITY; ELECTRON TEMPERATURE; ION TEMPERATURE; LASER RADIATION; PLASMA; PLASMA DENSITY; PLASMA DIAGNOSTICS; PLASMA PRODUCTION; SPATIAL RESOLUTION; TARGET CHAMBERS; THOMSON SCATTERING; X RADIATION; XENON IONS

Citation Formats

Pollock, B. B., University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093, Meinecke, J., University of Oxford, Wellington Square, Oxford, OX1 2JD, Kuschel, S., Ross, J. S., Divol, L., Glenzer, S. H., Shaw, J. L., Stoafer, C., and Tynan, G. R. Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe. United States: N. p., 2012. Web. doi:10.1063/1.4740526.
Pollock, B. B., University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093, Meinecke, J., University of Oxford, Wellington Square, Oxford, OX1 2JD, Kuschel, S., Ross, J. S., Divol, L., Glenzer, S. H., Shaw, J. L., Stoafer, C., & Tynan, G. R. Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe. United States. https://doi.org/10.1063/1.4740526
Pollock, B. B., University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093, Meinecke, J., University of Oxford, Wellington Square, Oxford, OX1 2JD, Kuschel, S., Ross, J. S., Divol, L., Glenzer, S. H., Shaw, J. L., Stoafer, C., and Tynan, G. R. 2012. "Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe". United States. https://doi.org/10.1063/1.4740526.
@article{osti_22093944,
title = {Simultaneous imaging electron- and ion-feature Thomson scattering measurements of radiatively heated Xe},
author = {Pollock, B. B. and University of California, San Diego, 9500 Gilman Dr., La Jolla, California 92093 and Meinecke, J. and University of Oxford, Wellington Square, Oxford, OX1 2JD and Kuschel, S. and Ross, J. S. and Divol, L. and Glenzer, S. H. and Shaw, J. L. and Stoafer, C. and Tynan, G. R.},
abstractNote = {Uniform density and temperature Xe plasmas have been produced over >4 mm scale-lengths using x-rays generated in a cylindrical Pb cavity. The cavity is 750 {mu}m in depth and diameter, and is heated by a 300 J, 2 ns square, 1054 nm laser pulse focused to a spot size of 200 {mu}m at the cavity entrance. The plasma is characterized by simultaneous imaging Thomson scattering measurements from both the electron and ion scattering features. The electron feature measurement determines the spatial electron density and temperature profile, and using these parameters as constraints in the ion feature analysis allows an accurate determination of the charge state of the Xe ions. The Thomson scattering probe beam is 40 J, 200 ps, and 527 nm, and is focused to a 100 {mu}m spot size at the entrance of the Pb cavity. Each system has a spatial resolution of 25 {mu}m, a temporal resolution of 200 ps (as determined by the probe duration), and a spectral resolution of 2 nm for the electron feature system and 0.025 nm for the ion feature system. The experiment is performed in a Xe filled target chamber at a neutral pressure of 3-10 Torr, and the x-rays produced in the Pb ionize and heat the Xe to a charge state of 20{+-}4 at up to 200 eV electron temperatures.},
doi = {10.1063/1.4740526},
url = {https://www.osti.gov/biblio/22093944}, journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 10,
volume = 83,
place = {United States},
year = {Mon Oct 15 00:00:00 EDT 2012},
month = {Mon Oct 15 00:00:00 EDT 2012}
}