High-resolution measurements of the DT neutron spectrum using new CD foils in the Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility

Johnson, M. Gatu; Frenje, J. A.; Bionta, R. M.; Casey, D. T.; Eckart, M. J.; Farrell, M. P.; Grim, G. P.; Hartouni, E. P.; Hatarik, R.; Hoppe, M.; Kilkenny, J. D.; Li, C. K.; Petrasso, R. D.; Reynolds, H. G.; Sayre, D. B.; Schoff, M. E.; Séguin, F. H.; Skulina, K.; Yeamans, C. B.

doi:10.7910/DVN/JZQEI7

Title: High-resolution measurements of the DT neutron spectrum using new CD foils in the Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility

Abstract

The Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility (NIF) measures the DT neutron spectrum from cryogenically layered Inertial Confinement Fusion (ICF) implosions. Yield, areal density, apparent ion temperature and directional fluid flow are inferred from the MRS data. This paper describes recent advances in MRS measurements of the primary peak using new, thinner, reduced-area deuterated plastic (CD) conversion foils. The new foils allow operation of MRS at yields 2 orders of magnitude higher than previously possible, at a resolution down to ~200 keV FWHM.

Authors:: Johnson, M. Gatu; Frenje, J. A.; Bionta, R. M.; Casey, D. T.; Eckart, M. J.; Farrell, M. P.; Grim, G. P.; Hartouni, E. P.; Hatarik, R.; Hoppe, M.; Kilkenny, J. D.; Li, C. K.; Petrasso, R. D.; Reynolds, H. G.; Sayre, D. B.; Schoff, M. E.; Séguin, F. H.; Skulina, K.; Yeamans, C. B.

Publication Date:: 2019-01-10

DOE Contract Number:: NA0001857; NA0001808; AC52-07NA27344

Research Org.:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center; General Atomics, San Diego, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

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

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY

OSTI Identifier:: 1880632

DOI:: https://doi.org/10.7910/DVN/JZQEI7

Citation Formats


                    Johnson, M. Gatu, Frenje, J. A., Bionta, R. M., Casey, D. T., Eckart, M. J., Farrell, M. P., Grim, G. P., Hartouni, E. P., Hatarik, R., Hoppe, M., Kilkenny, J. D., Li, C. K., Petrasso, R. D., Reynolds, H. G., Sayre, D. B., Schoff, M. E., Séguin, F. H., Skulina, K., and Yeamans, C. B. High-resolution measurements of the DT neutron spectrum using new CD foils in the Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility.  United States: N. p., 2019. 
        Web.  doi:10.7910/DVN/JZQEI7.

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                    Johnson, M. Gatu, Frenje, J. A., Bionta, R. M., Casey, D. T., Eckart, M. J., Farrell, M. P., Grim, G. P., Hartouni, E. P., Hatarik, R., Hoppe, M., Kilkenny, J. D., Li, C. K., Petrasso, R. D., Reynolds, H. G., Sayre, D. B., Schoff, M. E., Séguin, F. H., Skulina, K., & Yeamans, C. B. High-resolution measurements of the DT neutron spectrum using new CD foils in the Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility.  United States.  doi:https://doi.org/10.7910/DVN/JZQEI7

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                    Johnson, M. Gatu, Frenje, J. A., Bionta, R. M., Casey, D. T., Eckart, M. J., Farrell, M. P., Grim, G. P., Hartouni, E. P., Hatarik, R., Hoppe, M., Kilkenny, J. D., Li, C. K., Petrasso, R. D., Reynolds, H. G., Sayre, D. B., Schoff, M. E., Séguin, F. H., Skulina, K., and Yeamans, C. B. 2019.  
"High-resolution measurements of the DT neutron spectrum using new CD foils in the Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility".  United States.  doi:https://doi.org/10.7910/DVN/JZQEI7.  https://www.osti.gov/servlets/purl/1880632. Pub date:Thu Jan 10 00:00:00 EST 2019

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@article{osti_1880632,

  title        = {High-resolution measurements of the DT neutron spectrum using new CD foils in the Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility},

  author       = {Johnson, M. Gatu and Frenje, J. A. and Bionta, R. M. and Casey, D. T. and Eckart, M. J. and Farrell, M. P. and Grim, G. P. and Hartouni, E. P. and Hatarik, R. and Hoppe, M. and Kilkenny, J. D. and Li, C. K. and Petrasso, R. D. and Reynolds, H. G. and Sayre, D. B. and Schoff, M. E. and Séguin, F. H. and Skulina, K. and Yeamans, C. B.},

  abstractNote = {The Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility (NIF) measures the DT neutron spectrum from cryogenically layered Inertial Confinement Fusion (ICF) implosions. Yield, areal density, apparent ion temperature and directional fluid flow are inferred from the MRS data. This paper describes recent advances in MRS measurements of the primary peak using new, thinner, reduced-area deuterated plastic (CD) conversion foils. The new foils allow operation of MRS at yields 2 orders of magnitude higher than previously possible, at a resolution down to ~200 keV FWHM.},

  doi          = {10.7910/DVN/JZQEI7},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2019},

  month        = {1}

}

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