Explanipedia

Opportunities in pulsed magnetic fusion energy Open

C. Leland Ellison, V. García, M. R. Gómez, G. P. Grim, J. H. Hammer , et al. · 2025

Fusion is a potentially transformational energy technology, which promises limitless clean energy. Yet, it requires continued scientific and technological development to realize its potential. The conditions necessary for fusion energy gai…

Affordable, manageable, practical, and scalable (AMPS) high-yield and high-gain inertial fusion Open

A. B. Alexander, L. R. Benedetti, Indrani Bhattacharyya, J.R. Bowen, June Cabatu , et al. · 2025

High-yield inertial fusion offers a transformative path to affordable, clean, firm power and advanced defense capabilities. Recent milestones at large facilities, particularly the National Ignition Facility (NIF), have demonstrated the fea…

Affordable, manageable, practical, and scalable (AMPS) high-yield and high-gain inertial fusion Open

A. B. Alexander, L. R. Benedetti, Indrani Bhattacharyya, J.R. Bowen, June Cabatu , et al. · 2025

High-yield inertial fusion offers a transformative path to affordable clean firm power and advanced defense capabilities. Recent milestones at large facilities, particularly the National Ignition Facility (NIF), have demonstrated the feasi…

0D, 1D, 2D, and 3D simulations of an idealized coaxial impedance-matched Marx generator Open

D. V. Rose, W. A. Stygar, Dustin Offermann, K. R. LeChien, M. Anderson , et al. · 2024

We have conducted 0D, 1D, 2D, and 3D simulations of an idealized coaxial impedance-matched Marx generator (IMG) []. The 0D calculations were conducted with a four-element circuit model; the 1D, 2D, and 3D calculations were conducted with h…

Measured nuclear burn widths for Magnetized Liner Inertial Fusion (MagLIF) experiments Open

James Mitrani, G. A. Chandler, Kelly Hahn, D. J. Ampleford, M. R. Gómez , et al. · 2024

Opportunities in Pulsed Magnetic Fusion Energy Open

C. Leland Ellison, Vincent E. Garcia, M. R. Gómez, G. P. Grim, J. Hammer , et al. · 2024

Fusion is a potentially transformational energy technology, which promises limitless clean energy. Yet, it requires continued scientific and technological development to realize its potential. The conditions necessary for fusion energy gai…

Diagnosing inertial confinement fusion ignition Open

A. S. Moore, L. Divol, B. Bachmann, R. M. Bionta, D. K. Bradley , et al. · 2024

Fusion ignition by inertial confinement requires compression and heating of the fusion fuel to temperatures in excess of 5 keV and densities exceeding hundreds of g/cc. In August 2021, this scientific milestone was surpassed at the Nationa…

Simultaneous analysis of collinear neutron time-of-flight (nToF) traces applied to pulsed fusion experiment Open

James Mitrani, D. J. Ampleford, G. A. Chandler, M. J. Eckart, Kelly Hahn , et al. · 2024

On pulsed fusion experiments, the neutron time of flight (nToF) diagnostic provides critical information on the fusion neutron energy spectrum. This work presents an analysis technique that uses two collinear nToF detectors, potentially to…

Time-of-flight vs time-of-arrival in neutron spectroscopic measurements for high energy density plasmas Open

G. P. Grim, James Mitrani, G. A. Chandler, Kelly Hahn, M. C. Jones , et al. · 2024

The neutron time-of-flight (nToF) diagnostic technique has a lengthy history in Inertial Confinement Fusion (ICF) and High Energy Density (HED) Science experiments. Its initial utility resulted from the simple relationship between the full…

Opportunities in Pulsed Magnetic Fusion Energy Open

C. Leland Ellison, Vicente García, M. R. Gómez, G. P. Grim, J. H. Hammer , et al. · 2024

Fusion is a potentially transformational energy technology, which promises limitless clean energy. Yet, it requires continued scientific and technological development to realize its potential. The conditions necessary for fusion energy gai…

The impact of low-mode symmetry on inertial fusion energy output in the burning plasma state Open

J. E. Ralph, J. S. Ross, A. B. Zylstra, A. L. Kritcher, H. F. Robey , et al. · 2024

Simultaneous analysis of collinear neutron time-of-flight (nToF) traces applied to pulsed fusion experiments Open

James Mitrani, D. J. Ampleford, G. A. Chandler, M. J. Eckart, Kelly Hahn , et al. · 2024

Accurate determination of 13C/12C ratios with (d,p) nuclear reactions Open

Yongqiang Wang, Jian Zhang, R. S. Rundberg, G. P. Grim, Y H Li , et al. · 2024

Measurement of reaction-in-flight neutrons using thulium activation at the National Ignition Facility Open

G. P. Grim, R. S. Rundberg, A. C. Hayes, Gerard Jungman, M. Boswell , et al. · 2024

Reaction-in-Flight Neutrons and the Stopping Power in Cryogenic NIF Capsules Open

A. C. Hayes, Gerard Jungman, M. Boswell, M. M. Fowler, G. P. Grim , et al. · 2024

NI neutron image reconstruction techniques Open

P. L. Volegov, G. P. Grim, F. E. Merrill, D. C. Wilson · 2024

Nuclear-plasma physics studies using radiochemistry at NIF Open

A. C. Hayes, Gerald Hale, Jerry Jungman, G. P. Grim, A. Klein , et al. · 2024

Defect implosion experiments (DIME) Open

J. A. Cobble, Eric Loomis, Mark Schmitt, I. L. Tregillis, Kimberly A. DeFriend Obrey , et al. · 2024

Comparison of neutron and x-ray images from NIF implosions Open

D. C. Wilson, Robert Aragonez, Thomas Archuleta, S. H. Batha, D.D. Clark , et al. · 2024

Modeling gated neutron images of THD capsules Open

D. C. Wilson, G. P. Grim, I. L. Tregillis, Mark D. Wilke, G. L. Morgan , et al. · 2024

Time gating a neutron detector 28m from a NIF implosion can produce images at different energies. The brighter image near 14 MeV reflects the size and symmetry of the capsule 'hot spot'. Scattered neutrons, {approx}9.5-13 MeV, reflect the …

Progress towards the development and testing of source reconstruction methods for neutron imaging of ICF implosions Open

Eric Loomis, G. P. Grim, C. Wilde, Mark D. Wilke, Doug Wilson , et al. · 2024

Development of analysis techniques for neutron imaging at the National Ignition Facility (NIF) is an important and difficult task for the detailed understanding or high neutron yield inertial confinement fusion (ICF) implosions. These meth…

Design of the neutron imaging pinhole for use at the national ignition facility Open

V. E. Fatherley, Robert D. Day, F.P. García, G. P. Grim, J. A. Oertel , et al. · 2024

The Neutron Imaging (NI) diagnostic is designed to be used at the National Ignition Facility (NIF). This instrument will be used to image both primary (14MeV neutrons) and down scattered (6-8MeV neutrons). The pinhole body sits 225mm from …

The impact of low-mode symmetry on inertial fusion energy output in the burning plasma state Open

J. E. Ralph, J. S. Ross, A. B. Zylstra, A. L. Kritcher, H. F. Robey , et al. · 2024

Indirect Drive Inertial Confinement Fusion Experiments on the National Ignition Facility (NIF) have achieved a burning plasma state with neutron yields exceeding 170 kJ 1, 2 , roughly 3 times the prior record and a necessary stage for igni…

CO2 conversion for a circular carbon economy Open

G. P. Grim · 2024

Assembly of high-Areal-Density Deuterium-Tritium fuel from indirectly driven cryogenic implosions Open

A. J. Mackinnon, J. L. Kline, S. N. Dixit, S. Glenzer, M.J. Edwards , et al. · 2024

The National Ignition Facility has been used to compress deuterium-tritium to an average areal density of ∼1.0±0.1gcm -2, which is 67% of the ignition requirement. These conditions were obtained using 192 laser beams with total energy of 1…

Bayesian inferences of electrical current delivered to shocked transmission lines Open

T. M. Hutchinson, S. J. Ali, G. P. Grim, N. B. Meezan, Keith LeChien · 2023

Small radius Bdot measurements of electrical current delivered by pulsed power devices are routinely compromised by electrode/convolute plasmas endemic to multiterawatt transmission lines. Inferences of delivered current unaffected by thes…

A Feasibility Study of Utilizing Electricity to Produce Intermediates from CO2 and Biomass Open

G. P. Grim · 2023

This presentation covers a feasibility study of utilizing electricity to produce intermediates from CO2 and Biomass which was presented at the DOE Bioenergy Technologies Office (BETO) 2023 Project Peer Review.

Neutron time of flight (nToF) detectors for inertial fusion experiments Open

A. S. Moore, D. J. Schlossberg, Brian Appelbe, G. A. Chandler, Aidan Crilly , et al. · 2023

Neutrons generated in Inertial Confinement Fusion (ICF) experiments provide valuable information to interpret the conditions reached in the plasma. The neutron time-of-flight (nToF) technique is well suited for measuring the neutron energy…

Development of a bright MeV photon source with compound parabolic concentrator targets on the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser Open

S. Kerr, D. Rusby, G. J. Williams, K. D. Meaney, D. J. Schlossberg , et al. · 2023

Compound parabolic concentrator (CPC) targets are utilized at the National Ignition Facility Advanced Radiographic Capability (NIF-ARC) laser to enhance the acceleration of electrons and production of high energy photons, for laser duratio…

Evidence for suprathermal ion distribution in burning plasmas Open

E. P. Hartouni, A. S. Moore, Aidan Crilly, Brian Appelbe, P. A. Amendt , et al. · 2022

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