Using millimeter-sized carbon-deuterium foils for high-precision deuterium-tritium neutron spectrum measurements in direct-drive inertial confinement fusion at the OMEGA laser facility

Johnson, M. Gatu; Aguirre, B.; Armstrong, J.; Fooks, J. A.; Forrest, C.; Frenje, J. A.; Glebov, V. Yu.; Hoppe, M.; Katz, J.; Knauer, J. P.; Martin, W.; Parker, C. E.; Reynolds, H. G.; Schoff, M. E.; Séguin, F. H.; Sorce, C.; Sperry, B.; Stoeckl, C.; Petrasso, R. D.

doi:10.7910/DVN/BNCGL4

Title: Using millimeter-sized carbon-deuterium foils for high-precision deuterium-tritium neutron spectrum measurements in direct-drive inertial confinement fusion at the OMEGA laser facility

Abstract

Millimeter-sized CD foils fielded close (order mm) to inertial confinement fusion (ICF) implosions have been proposed as a game-changer for improving energy resolution and allowing time-resolution in neutron spectrum measurements using the magnetic recoil technique. This paper presents results from initial experiments testing this concept for direct drive ICF at the OMEGA laser facility. While the foils are shown to produce reasonable signals, inferred spectral broadening is seen to be high (~5 keV) and signal levels low (by ~20%) compared to expectation. Before this type of foil is used for precision experiments, the foil mount must be improved, oxygen uptake in the foils better characterized, and impact of uncontrolled foil motion prior to detection investigated.

Authors:: Johnson, M. Gatu; Aguirre, B.; Armstrong, J.; Fooks, J. A.; Forrest, C.; Frenje, J. A.; Glebov, V. Yu.; Hoppe, M.; Katz, J.; Knauer, J. P.; Martin, W.; Parker, C. E.; Reynolds, H. G.; Schoff, M. E.; Séguin, F. H.; Sorce, C.; Sperry, B.; Stoeckl, C.; Petrasso, R. D.

Publication Date:: 2021-02-17

DOE Contract Number:: NA0003868

Research Org.:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

OSTI Identifier:: 1887577

DOI:: https://doi.org/10.7910/DVN/BNCGL4

Citation Formats


                    Johnson, M. Gatu, Aguirre, B., Armstrong, J., Fooks, J. A., Forrest, C., Frenje, J. A., Glebov, V. Yu., Hoppe, M., Katz, J., Knauer, J. P., Martin, W., Parker, C. E., Reynolds, H. G., Schoff, M. E., Séguin, F. H., Sorce, C., Sperry, B., Stoeckl, C., and Petrasso, R. D. Using millimeter-sized carbon-deuterium foils for high-precision deuterium-tritium neutron spectrum measurements in direct-drive inertial confinement fusion at the OMEGA laser facility.  United States: N. p., 2021. 
        Web.  doi:10.7910/DVN/BNCGL4.

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                    Johnson, M. Gatu, Aguirre, B., Armstrong, J., Fooks, J. A., Forrest, C., Frenje, J. A., Glebov, V. Yu., Hoppe, M., Katz, J., Knauer, J. P., Martin, W., Parker, C. E., Reynolds, H. G., Schoff, M. E., Séguin, F. H., Sorce, C., Sperry, B., Stoeckl, C., & Petrasso, R. D. Using millimeter-sized carbon-deuterium foils for high-precision deuterium-tritium neutron spectrum measurements in direct-drive inertial confinement fusion at the OMEGA laser facility.  United States.  doi:https://doi.org/10.7910/DVN/BNCGL4

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                    Johnson, M. Gatu, Aguirre, B., Armstrong, J., Fooks, J. A., Forrest, C., Frenje, J. A., Glebov, V. Yu., Hoppe, M., Katz, J., Knauer, J. P., Martin, W., Parker, C. E., Reynolds, H. G., Schoff, M. E., Séguin, F. H., Sorce, C., Sperry, B., Stoeckl, C., and Petrasso, R. D. 2021.  
"Using millimeter-sized carbon-deuterium foils for high-precision deuterium-tritium neutron spectrum measurements in direct-drive inertial confinement fusion at the OMEGA laser facility".  United States.  doi:https://doi.org/10.7910/DVN/BNCGL4.  https://www.osti.gov/servlets/purl/1887577. Pub date:Wed Feb 17 00:00:00 EST 2021

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@article{osti_1887577,

  title        = {Using millimeter-sized carbon-deuterium foils for high-precision deuterium-tritium neutron spectrum measurements in direct-drive inertial confinement fusion at the OMEGA laser facility},

  author       = {Johnson, M. Gatu and Aguirre, B. and Armstrong, J. and Fooks, J. A. and Forrest, C. and Frenje, J. A. and Glebov, V. Yu. and Hoppe, M. and Katz, J. and Knauer, J. P. and Martin, W. and Parker, C. E. and Reynolds, H. G. and Schoff, M. E. and Séguin, F. H. and Sorce, C. and Sperry, B. and Stoeckl, C. and Petrasso, R. D.},

  abstractNote = {Millimeter-sized CD foils fielded close (order mm) to inertial confinement fusion (ICF) implosions have been proposed as a game-changer for improving energy resolution and allowing time-resolution in neutron spectrum measurements using the magnetic recoil technique. This paper presents results from initial experiments testing this concept for direct drive ICF at the OMEGA laser facility. While the foils are shown to produce reasonable signals, inferred spectral broadening is seen to be high (~5 keV) and signal levels low (by ~20%) compared to expectation. Before this type of foil is used for precision experiments, the foil mount must be improved, oxygen uptake in the foils better characterized, and impact of uncontrolled foil motion prior to detection investigated.},

  doi          = {10.7910/DVN/BNCGL4},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2021},

  month        = {2}

}

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