Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility

doi:10.1063/1.4960758

Title: Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility

Abstract

The high fuel capsule compression required for indirect drive inertial confinement fusion (ICF) requires careful control of the X-raydrive symmetry throughout the laser pulse. When the outer cone beams strike the hohlraum wall, the plasma ablated off the hohlraum wall expands into the hohlraum and can alter both the outer and inner cone beam propagation and hencethe X-raydrive symmetry especially at thefinal stage of the drive pulse. In order to quantitatively understand the wall motion, we developed a new experimental technique which visualizes the expansion and stagnation of the hohlraum wall plasma. Finally, we discuss details of the experiment and the technique of spectrally selectivex-ray imaging.

Authors:

Izumi, N. ^[1]; Meezan, N. B. ^[1]; Divol, L. ^[1]; Hall, G. N. ^[1];

^[1]; Jones, O. ^[1];

^[1]; Kroll, J. J. ^[1]; Vonhof, S. A. ^[1]; Nikroo, A. ^[1]; Jaquez, J. ^[2]; Bailey, C. G. ^[3]; Hardy, C. M. ^[3]; Ehrlich, R. B. ^[3]; Town, R. P. J. ^[3]; Bradley, D. K. ^[3]; Hinkel, D. E. ^[3]; Moody, J. D. ^[3]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
General Atomics, San Diego, California 9212, USA
Lawrence Livermore National Laboratory, Livermore, California 94551, USA

Publication Date:: 2016-08-12

Research Org.:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1281670

Report Number(s):: LLNL-PROC-696881
Journal ID: ISSN 0034-6748; RSINAK

Grant/Contract Number:: AC52-07NA27344

Resource Type:: Accepted Manuscript

Journal Name:: Review of Scientific Instruments

Additional Journal Information:: Journal Volume: 87; Journal Issue: 11; Conference: Presented at: the 21st Topical Conference on High-Temperature Plasma Diagnostics, Madison, WI, United States, Jun 05 - Jun 09, 2016; Journal ID: ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION

Citation Formats


                    Izumi, N., Meezan, N. B., Divol, L., Hall, G. N., Barrios, M. A., Jones, O., Landen, O. L., Kroll, J. J., Vonhof, S. A., Nikroo, A., Jaquez, J., Bailey, C. G., Hardy, C. M., Ehrlich, R. B., Town, R. P.  J., Bradley, D. K., Hinkel, D. E., and Moody, J. D. Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility.  United States: N. p., 2016. 
        Web.  doi:10.1063/1.4960758.

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                    Izumi, N., Meezan, N. B., Divol, L., Hall, G. N., Barrios, M. A., Jones, O., Landen, O. L., Kroll, J. J., Vonhof, S. A., Nikroo, A., Jaquez, J., Bailey, C. G., Hardy, C. M., Ehrlich, R. B., Town, R. P.  J., Bradley, D. K., Hinkel, D. E., & Moody, J. D. Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility.  United States.  doi:10.1063/1.4960758.

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                    Izumi, N., Meezan, N. B., Divol, L., Hall, G. N., Barrios, M. A., Jones, O., Landen, O. L., Kroll, J. J., Vonhof, S. A., Nikroo, A., Jaquez, J., Bailey, C. G., Hardy, C. M., Ehrlich, R. B., Town, R. P.  J., Bradley, D. K., Hinkel, D. E., and Moody, J. D. Fri .  
        "Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility".  United States.  doi:10.1063/1.4960758.  https://www.osti.gov/servlets/purl/1281670.

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@article{osti_1281670,

  title        = {Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility},

  author       = {Izumi, N. and Meezan, N. B. and Divol, L. and Hall, G. N. and Barrios, M. A. and Jones, O. and Landen, O. L. and Kroll, J. J. and Vonhof, S. A. and Nikroo, A. and Jaquez, J. and Bailey, C. G. and Hardy, C. M. and Ehrlich, R. B. and Town, R. P.  J. and Bradley, D. K. and Hinkel, D. E. and Moody, J. D.},

  abstractNote = {The high fuel capsule compression required for indirect drive inertial confinement fusion (ICF) requires careful control of the X-raydrive symmetry throughout the laser pulse. When the outer cone beams strike the hohlraum wall, the plasma ablated off the hohlraum wall expands into the hohlraum and can alter both the outer and inner cone beam propagation and hencethe X-raydrive symmetry especially at thefinal stage of the drive pulse. In order to quantitatively understand the wall motion, we developed a new experimental technique which visualizes the expansion and stagnation of the hohlraum wall plasma. Finally, we discuss details of the experiment and the technique of spectrally selectivex-ray imaging.},

  doi          = {10.1063/1.4960758},

  journal      = {Review of Scientific Instruments},

  number       = 11,

  volume       = 87,

  place        = {United States},

  year         = {2016},

  month        = {8}

}

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DOI: 10.1063/1.4960758

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Works referenced in this record:

High-density carbon ablator experiments on the National Ignition Facility
journal, May 2014

MacKinnon, A. J.; Meezan, N. B.; Ross, J. S.
Physics of Plasmas, Vol. 21, Issue 5
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Gated x-ray detector for the National Ignition Facility
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Oertel, John A.; Aragonez, Robert; Archuleta, Tom
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A New Method of Spectroscopy for Faint X-Radiations
journal, January 1928

Ross, P. A.
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Tuning the Implosion Symmetry of ICF Targets via Controlled Crossed-Beam Energy Transfer
journal, January 2009

Michel, P.; Divol, L.; Williams, E. A.
Physical Review Letters, Vol. 102, Issue 2
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Symmetry tuning via controlled crossed-beam energy transfer on the National Ignition Facility
journal, May 2010

Michel, P.; Glenzer, S. H.; Divol, L.
Physics of Plasmas, Vol. 17, Issue 5
DOI: 10.1063/1.3325733

Analysis of the National Ignition Facility ignition hohlraum energetics experiments
journal, May 2011

Town, R. P. J.; Rosen, M. D.; Michel, P. A.
Physics of Plasmas, Vol. 18, Issue 5
DOI: 10.1063/1.3562552

Advances in x-ray framing cameras at the National Ignition Facility to improve quantitative precision in x-ray imaging
journal, February 2016

Benedetti, L. R.; Holder, J. P.; Perkins, M.
Review of Scientific Instruments, Vol. 87, Issue 2
DOI: 10.1063/1.4941754

Images of the gold bubble feature in NIF Gas-Filled Ignition Hohlraums
journal, May 2016

Schneider, M. B.; MacLaren, S. A.; Widmann, K.
Journal of Physics: Conference Series, Vol. 717
DOI: 10.1088/1742-6596/717/1/012049

Novel Characterization of Capsule X-Ray Drive at the National Ignition Facility
journal, March 2014

MacLaren, S. A.; Schneider, M. B.; Widmann, K.
Physical Review Letters, Vol. 112, Issue 10
DOI: 10.1103/PhysRevLett.112.105003

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Title: Observation of hohlraum-wall motion with spectrally selective x-ray imaging at the National Ignition Facility

Abstract

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