Spectral measurements of asymmetrically irradiated capsule backlighters

Keiter, P. A.; Drake, R. P.

doi:10.1063/1.4961555

Title: Spectral measurements of asymmetrically irradiated capsule backlighters

Abstract

Capsule backlighters provide a quasi-continuum x-ray spectrum over a wide range of photon energies. Ideally one irradiates the capsule backlighter symmetrically, however, in complex experimental geometries, this is not always possible. In recent experiments we irradiated capsule backlighters asymmetrically and measured the x-ray spectrum from multiple directions. We will present time-integrated spectra over the photon energy range of 2-13 keV and time-resolved spectra over the photon energy range of 2-3 keV. We will compare the spectra from di erent lines of sight to determine if the laser asymmetry results in an angular dependence in the x-ray emission.

Authors:

Keiter, P. A. ^[1];

^[1]

Univ. of Michigan, Ann Arbor, MI (United States)

Publication Date:: Fri Sep 09 00:00:00 EDT 2016

Research Org.:: Univ. of Michigan, Ann Arbor, MI (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of Rochester, NY (United States). Lab. for Laser Energetics

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC); University of Rochester

OSTI Identifier:: 1339941

Alternate Identifier(s):: OSTI ID: 1454576

Grant/Contract Number:: NA0002719; NA0002956; NA0001944; B614207

Resource Type:: Accepted Manuscript

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 87; Journal Issue: 11; Journal ID: ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats


                    Keiter, P. A., and Drake, R. P. Spectral measurements of asymmetrically irradiated capsule backlighters.  United States: N. p., 2016. 
Web.  doi:10.1063/1.4961555.

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                    Keiter, P. A., & Drake, R. P. Spectral measurements of asymmetrically irradiated capsule backlighters.  United States.  https://doi.org/10.1063/1.4961555

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                    Keiter, P. A., and Drake, R. P. Fri .  
"Spectral measurements of asymmetrically irradiated capsule backlighters".  United States.  https://doi.org/10.1063/1.4961555.  https://www.osti.gov/servlets/purl/1339941.

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@article{osti_1339941,

  title        = {Spectral measurements of asymmetrically irradiated capsule backlighters},

  author       = {Keiter, P. A. and Drake, R. P.},

  abstractNote = {Capsule backlighters provide a quasi-continuum x-ray spectrum over a wide range of photon energies. Ideally one irradiates the capsule backlighter symmetrically, however, in complex experimental geometries, this is not always possible. In recent experiments we irradiated capsule backlighters asymmetrically and measured the x-ray spectrum from multiple directions. We will present time-integrated spectra over the photon energy range of 2-13 keV and time-resolved spectra over the photon energy range of 2-3 keV. We will compare the spectra from di erent lines of sight to determine if the laser asymmetry results in an angular dependence in the x-ray emission.},

  doi          = {10.1063/1.4961555},

  journal      = {Review of Scientific Instruments},

  number       = 11,

  volume       = 87,

  place        = {United States},

  year         = {Fri Sep 09 00:00:00 EDT 2016},

  month        = {Fri Sep 09 00:00:00 EDT 2016}

}

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Works referenced in this record:

L -shell absorption spectrum of an open- M -shell germanium plasma: Comparison of experimental data with a detailed configuration-accounting calculation
journal, December 1991

Foster, J. M.; Hoarty, D. J.; Smith, C. C.
Physical Review Letters, Vol. 67, Issue 23
DOI: 10.1103/PhysRevLett.67.3255

HELIOS-CR – A 1-D radiation-magnetohydrodynamics code with inline atomic kinetics modeling
journal, May 2006

MacFarlane, J. J.; Golovkin, I. E.; Woodruff, P. R.
Journal of Quantitative Spectroscopy and Radiative Transfer, Vol. 99, Issue 1-3
DOI: 10.1016/j.jqsrt.2005.05.031

Extended x-ray absorption fine structure measurements of quasi-isentropically compressed vanadium targets on the OMEGA laser
journal, June 2008

Yaakobi, B.; Boehly, T. R.; Sangster, T. C.
Physics of Plasmas, Vol. 15, Issue 6
DOI: 10.1063/1.2938749

Dynamic Hohlraums as x-ray sources in high-energy density science
journal, January 2008

Hansen, J. F.; Glendinning, S. G.; Heeter, R. F.
Review of Scientific Instruments, Vol. 79, Issue 1
DOI: 10.1063/1.2804765

Direct‐drive laser‐fusion experiments with the OMEGA, 60‐beam, >40 kJ, ultraviolet laser system
journal, May 1996

Soures, J. M.; McCrory, R. L.; Verdon, C. P.
Physics of Plasmas, Vol. 3, Issue 5
DOI: 10.1063/1.871662

Works referencing / citing this record:

Soft X-ray emission from laser-irradiated gold foils
journal, July 2018

Davis, J. S.; Drake, R. P.; Fraenkel, M.
Physics of Plasmas, Vol. 25, Issue 7
DOI: 10.1063/1.5036934

Laboratory Photoionization Fronts in Nitrogen Gas: A Numerical Feasibility and Parameter Study
journal, April 2018

Gray, William J.; Keiter, P. A.; Lefevre, H.
The Astrophysical Journal, Vol. 858, Issue 1
DOI: 10.3847/1538-4357/aabc0f

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Title: Spectral measurements of asymmetrically irradiated capsule backlighters

Abstract

Citation Formats

L -shell absorption spectrum of an open- M -shell germanium plasma: Comparison of experimental data with a detailed configuration-accounting calculation journal, December 1991

HELIOS-CR – A 1-D radiation-magnetohydrodynamics code with inline atomic kinetics modeling journal, May 2006

Extended x-ray absorption fine structure measurements of quasi-isentropically compressed vanadium targets on the OMEGA laser journal, June 2008

Dynamic Hohlraums as x-ray sources in high-energy density science journal, January 2008

Direct‐drive laser‐fusion experiments with the OMEGA, 60‐beam, >40 kJ, ultraviolet laser system journal, May 1996

Soft X-ray emission from laser-irradiated gold foils journal, July 2018

Laboratory Photoionization Fronts in Nitrogen Gas: A Numerical Feasibility and Parameter Study journal, April 2018

L -shell absorption spectrum of an open- M -shell germanium plasma: Comparison of experimental data with a detailed configuration-accounting calculation
journal, December 1991

HELIOS-CR – A 1-D radiation-magnetohydrodynamics code with inline atomic kinetics modeling
journal, May 2006

Extended x-ray absorption fine structure measurements of quasi-isentropically compressed vanadium targets on the OMEGA laser
journal, June 2008

Dynamic Hohlraums as x-ray sources in high-energy density science
journal, January 2008

Direct‐drive laser‐fusion experiments with the OMEGA, 60‐beam, >40 kJ, ultraviolet laser system
journal, May 1996

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journal, July 2018

Laboratory Photoionization Fronts in Nitrogen Gas: A Numerical Feasibility and Parameter Study
journal, April 2018