Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation

Nagel, S. R.; Chen, H.; Park, J.; Foord, M.; Hazi, A. U.; Hilsabeck, T. J.; Kerr, S. M.; Marley, E. V.; Williams, G. J.

doi:10.1063/1.4979802

Title: Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation

Abstract

Time resolved x-ray images with 7 ps resolution are recorded on relativistic short-pulse laser-plasma experiments using the dilation x-ray imager, a high-speed x-ray framing camera, sensitive to x-rays in the range of ≈1-17 keV. Furthermore, this capability enables a series of 2D x-ray images to be recorded at picosecond scales, which allows for the investigation of fast electron transport within the target with unprecedented temporal resolution. With an increase in the Kα-emission spot size over time we found that targets were thinner than the recirculation limit and is absent for thicker targets. Together with the observed polarization dependence of the spot size increase, this indicates that electron recirculation is relevant for the x-ray production in thin targets.

Authors:

^[1]; Chen, H. ^[1]; Park, J. ^[1]; Foord, M. ^[1];

^[1]; Hilsabeck, T. J. ^[2];

^[3]; Marley, E. V. ^[1];

^[1]

Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
General Atomics, San Diego, CA (United States)
University of Alberta, Edmonton, Alberta T6G 2R3, Canada

Publication Date:: Tue Apr 04 00:00:00 EDT 2017

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

Sponsoring Org.:: USDOE

OSTI Identifier:: 1368021

Alternate Identifier(s):: OSTI ID: 1361807

Report Number(s):: LLNL-JRNL-717398
Journal ID: ISSN 0003-6951; APPLAB

Grant/Contract Number:: AC52-07NA27344; NA0001808

Resource Type:: Accepted Manuscript

Journal Name:: Applied Physics Letters

Additional Journal Information:: Journal Volume: 110; Journal Issue: 14; Journal ID: ISSN 0003-6951

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION

Citation Formats


                    Nagel, S. R., Chen, H., Park, J., Foord, M., Hazi, A. U., Hilsabeck, T. J., Kerr, S. M., Marley, E. V., and Williams, G. J. Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4979802.

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                    Nagel, S. R., Chen, H., Park, J., Foord, M., Hazi, A. U., Hilsabeck, T. J., Kerr, S. M., Marley, E. V., & Williams, G. J. Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation.  United States.  https://doi.org/10.1063/1.4979802

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                    Nagel, S. R., Chen, H., Park, J., Foord, M., Hazi, A. U., Hilsabeck, T. J., Kerr, S. M., Marley, E. V., and Williams, G. J. Tue .  
"Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation".  United States.  https://doi.org/10.1063/1.4979802.  https://www.osti.gov/servlets/purl/1368021.

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@article{osti_1368021,

  title        = {Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation},

  author       = {Nagel, S. R. and Chen, H. and Park, J. and Foord, M. and Hazi, A. U. and Hilsabeck, T. J. and Kerr, S. M. and Marley, E. V. and Williams, G. J.},

  abstractNote = {Time resolved x-ray images with 7 ps resolution are recorded on relativistic short-pulse laser-plasma experiments using the dilation x-ray imager, a high-speed x-ray framing camera, sensitive to x-rays in the range of ≈1-17 keV. Furthermore, this capability enables a series of 2D x-ray images to be recorded at picosecond scales, which allows for the investigation of fast electron transport within the target with unprecedented temporal resolution. With an increase in the Kα-emission spot size over time we found that targets were thinner than the recirculation limit and is absent for thicker targets. Together with the observed polarization dependence of the spot size increase, this indicates that electron recirculation is relevant for the x-ray production in thin targets.},

  doi          = {10.1063/1.4979802},

  journal      = {Applied Physics Letters},

  number       = 14,

  volume       = 110,

  place        = {United States},

  year         = {Tue Apr 04 00:00:00 EDT 2017},

  month        = {Tue Apr 04 00:00:00 EDT 2017}

}

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Title: Two-dimensional time-resolved ultra-high speed imaging of K-alpha emission from short-pulse-laser interactions to observe electron recirculation

Abstract

Citation Formats

X-ray spectroscopy of buried layer foils irradiated at laser intensities in excess of 1020 W/cm2 journal, June 2009

Measurement of Fast-Electron Energy Spectra and Preheating in Laser-Irradiated Targets journal, April 1979

Development and characterization of a pair of 30–40 ps x‐ray framing cameras journal, January 1995

Time-resolved K α spectroscopy measurements of hot-electron equilibration dynamics in thin-foil solid targets: collisional and collective effects journal, September 2015

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The role of hot electron refluxing in laser-generated K-alpha sources journal, October 2010

Energetic electrons driven in the polarization direction of an intense laser beam incident normal to a solid target journal, June 2016

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

Energetic proton generation in ultra-intense laser–solid interactions journal, February 2001

J×B heating by very intense laser light journal, January 1985

Time-Resolved Measurements of Hot-Electron Equilibration Dynamics in High-Intensity Laser Interactions with Thin-Foil Solid Targets journal, February 2012

Relativistic laser plasma interactions journal, April 2003

The scaling of electron and positron generation in intense laser-solid interactionsa) journal, May 2015

Gated x-ray detector for the National Ignition Facility journal, October 2006

Enhancement of Proton Acceleration by Hot-Electron Recirculation in Thin Foils Irradiated by Ultraintense Laser Pulses journal, May 2002

Micron-scale fast electron filaments and recirculation determined from rear-side optical emission in high-intensity laser–solid interactions journal, July 2010

Comparison of implosion core metrics: A 10 ps dilation X-ray imager vs a 100 ps gated microchannel plate journal, August 2016

Dilation x-ray imager a new/faster gated x-ray imager for the NIF journal, October 2012

Investigating high speed phenomena in laser plasma interactions using dilation x-ray imager (invited) journal, November 2014

Effects of electron recirculation on a hard x-ray source observed during the interaction of a high intensity laser pulse with thin Au targets journal, December 2013

A study of fast electron energy transport in relativistically intense laser-plasma interactions with large density scalelengths journal, May 2012

High-intensity laser interactions with mass-limited solid targets and implications for fast-ignition experiments on OMEGA EP journal, May 2007

The implementation and data analysis of an interferometer for intense short pulse laser experiments journal, January 2016

High energy proton acceleration in interaction of short laser pulse with dense plasma target journal, May 2003

Scaling Hot-Electron Generation to High-Power, Kilojoule-Class Laser-Solid Interactions journal, December 2010

Solid-state framing camera with multiple time frames journal, October 2013

Pulse-dilation enhanced gated optical imager with 5 ps resolution (invited) journal, October 2010

Short Pulse Laser Interactions with Matter: An Introduction book, September 2005

X-ray spectroscopy of buried layer foils irradiated at laser intensities in excess of 1020 W/cm2
journal, June 2009

Measurement of Fast-Electron Energy Spectra and Preheating in Laser-Irradiated Targets
journal, April 1979

Development and characterization of a pair of 30–40 ps x‐ray framing cameras
journal, January 1995

Time-resolved K _α spectroscopy measurements of hot-electron equilibration dynamics in thin-foil solid targets: collisional and collective effects
journal, September 2015

A high-resolution imaging x-ray crystal spectrometer for high energy density plasmas
journal, November 2014

The role of hot electron refluxing in laser-generated K-alpha sources
journal, October 2010

Energetic electrons driven in the polarization direction of an intense laser beam incident normal to a solid target
journal, June 2016

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

Energetic proton generation in ultra-intense laser–solid interactions
journal, February 2001

J×B heating by very intense laser light
journal, January 1985

Time-Resolved Measurements of Hot-Electron Equilibration Dynamics in High-Intensity Laser Interactions with Thin-Foil Solid Targets
journal, February 2012

Relativistic laser plasma interactions
journal, April 2003

The scaling of electron and positron generation in intense laser-solid interactionsa)
journal, May 2015

Gated x-ray detector for the National Ignition Facility
journal, October 2006

Enhancement of Proton Acceleration by Hot-Electron Recirculation in Thin Foils Irradiated by Ultraintense Laser Pulses
journal, May 2002

Micron-scale fast electron filaments and recirculation determined from rear-side optical emission in high-intensity laser–solid interactions
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