Measuring implosion velocities in experiments and simulations of laser-driven cylindrical implosions on the OMEGA laser

E. C. Hansen, D. H. Barnak, R. Betti, E. M. Campbell, Po-Yu Chang, J. R. Davies, V. Yu Glebov, J. P. Knauer, J. Peebles, S. P. Regan, A. B. Sefkow

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Laser-driven magnetized liner inertial fusion (MagLIF) on OMEGA involves cylindrical implosions, a preheat beam, and an applied magnetic field. Initial experiments excluded the preheat beam and magnetic field to better characterize the implosion. X-ray self-emission as measured by framing cameras was used to determine the shell trajectory. The 1D code LILAC was used to model the central region of the implosion, and results were compared to 2D simulations from the HYDRA code. Post-processing of simulation output with SPECT3D and Yorick produced synthetic x-ray images that were used to compare the simulation results with the x-ray framing camera data. Quantitative analysis shows that higher measured neutron yields correlate with higher implosion velocities. The future goal is to further analyze the x-ray images to characterize the uniformity of the implosions and apply these analysis techniques to integrated laser-driven MagLIF shots to better understand the effects of preheat and the magnetic field.

Original languageEnglish
Article number054014
JournalPlasma Physics and Controlled Fusion
Volume60
Issue number5
DOIs
Publication statusPublished - 2018 Apr 4

Fingerprint

implosions
X rays
Lasers
framing cameras
Magnetic fields
lasers
linings
Fusion reactions
simulation
Experiments
Cameras
x rays
magnetic fields
Neutrons
Trajectories
quantitative analysis
shot
trajectories
neutrons
Processing

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering
  • Condensed Matter Physics

Cite this

Hansen, E. C. ; Barnak, D. H. ; Betti, R. ; Campbell, E. M. ; Chang, Po-Yu ; Davies, J. R. ; Glebov, V. Yu ; Knauer, J. P. ; Peebles, J. ; Regan, S. P. ; Sefkow, A. B. / Measuring implosion velocities in experiments and simulations of laser-driven cylindrical implosions on the OMEGA laser. In: Plasma Physics and Controlled Fusion. 2018 ; Vol. 60, No. 5.
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abstract = "Laser-driven magnetized liner inertial fusion (MagLIF) on OMEGA involves cylindrical implosions, a preheat beam, and an applied magnetic field. Initial experiments excluded the preheat beam and magnetic field to better characterize the implosion. X-ray self-emission as measured by framing cameras was used to determine the shell trajectory. The 1D code LILAC was used to model the central region of the implosion, and results were compared to 2D simulations from the HYDRA code. Post-processing of simulation output with SPECT3D and Yorick produced synthetic x-ray images that were used to compare the simulation results with the x-ray framing camera data. Quantitative analysis shows that higher measured neutron yields correlate with higher implosion velocities. The future goal is to further analyze the x-ray images to characterize the uniformity of the implosions and apply these analysis techniques to integrated laser-driven MagLIF shots to better understand the effects of preheat and the magnetic field.",
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Hansen, EC, Barnak, DH, Betti, R, Campbell, EM, Chang, P-Y, Davies, JR, Glebov, VY, Knauer, JP, Peebles, J, Regan, SP & Sefkow, AB 2018, 'Measuring implosion velocities in experiments and simulations of laser-driven cylindrical implosions on the OMEGA laser', Plasma Physics and Controlled Fusion, vol. 60, no. 5, 054014. https://doi.org/10.1088/1361-6587/aab73f

Measuring implosion velocities in experiments and simulations of laser-driven cylindrical implosions on the OMEGA laser. / Hansen, E. C.; Barnak, D. H.; Betti, R.; Campbell, E. M.; Chang, Po-Yu; Davies, J. R.; Glebov, V. Yu; Knauer, J. P.; Peebles, J.; Regan, S. P.; Sefkow, A. B.

In: Plasma Physics and Controlled Fusion, Vol. 60, No. 5, 054014, 04.04.2018.

Research output: Contribution to journalArticle

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AU - Hansen, E. C.

AU - Barnak, D. H.

AU - Betti, R.

AU - Campbell, E. M.

AU - Chang, Po-Yu

AU - Davies, J. R.

AU - Glebov, V. Yu

AU - Knauer, J. P.

AU - Peebles, J.

AU - Regan, S. P.

AU - Sefkow, A. B.

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AB - Laser-driven magnetized liner inertial fusion (MagLIF) on OMEGA involves cylindrical implosions, a preheat beam, and an applied magnetic field. Initial experiments excluded the preheat beam and magnetic field to better characterize the implosion. X-ray self-emission as measured by framing cameras was used to determine the shell trajectory. The 1D code LILAC was used to model the central region of the implosion, and results were compared to 2D simulations from the HYDRA code. Post-processing of simulation output with SPECT3D and Yorick produced synthetic x-ray images that were used to compare the simulation results with the x-ray framing camera data. Quantitative analysis shows that higher measured neutron yields correlate with higher implosion velocities. The future goal is to further analyze the x-ray images to characterize the uniformity of the implosions and apply these analysis techniques to integrated laser-driven MagLIF shots to better understand the effects of preheat and the magnetic field.

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