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

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

Open Access

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(s) -

M. Gatu Johnson,

J. A. Frenje,

R. M. Bionta,

D. T. Casey,

M. J. Eckart,

Michael Farrell,

G. P. Grim,

E. P. Hartouni,

R. Hatarik,

M. Hoppe,

J. D. Kilkenny,

C. K. Li,

R. D. Petrasso,

H. Reynolds,

D. B. Sayre,

M. Schoff,

F. H. Séguin,

K. Skulina,

C. B. Yeamans

Publication year - 2016

Publication title -

review of scientific instruments

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 165

eISSN - 1089-7623

pISSN - 0034-6748

DOI - 10.1063/1.4959946

Subject(s) - national ignition facility , neutron , spectrometer , nuclear physics , inertial confinement fusion , neutron spectroscopy , full width at half maximum , deuterium , recoil , physics , resolution (logic) , bonner sphere , materials science , neutron temperature , optics , neutron cross section , neutron scattering , plasma , artificial intelligence , computer science

The Magnetic Recoil neutron Spectrometer (MRS) on the National Ignition Facility measures the DT neutron spectrum from cryogenically layered inertial confinement fusion 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.

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