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Title: Single and Double Shell Ignition Targets for the National Ignition Facility at 527 nm

Journal Article · · Physics of Plasmas
DOI:https://doi.org/10.1063/5.0037338· OSTI ID:1868271

Converting and using the National Ignition Facility (NIF) to deliver 527 nm light instead of its current 351 nm would allow the laser to deliver more energy and power to ignition targets. We update previous 527 nm target design work to reflect more contemporary target designs using high-density carbon capsules and low density helium gas filled Hohlraums. We extend single shell capsule designs based on current experimental results to higher energy and power and also explore double shell capsules, both driven by green light. These studies were completed using detailed pulse shapes found for targets that converged with acceptable 2D implosion symmetries and then used the Lava Lamp II code to confirm their feasibility at NIF. A 1.2× dimensional scaleup of one tuned NIF target at the limit of its current 351 nm capabilities and shot 170827 uses 3.3 MJ, at the limit of the current NIF's 527 nm capability. With the less-structured pulse of a double shell target, 3.7 MJ could be delivered by the laser. Our LPI calculations do not preclude operation at 527 nm, particularly for low fill Hohlraums, and suggest that the stimulated Raman backscatter may be no worse than the small quantities seen in 170827; stimulated forward Raman scattering may be present. If Stimulated Brillouin Scattering is too great, the much greater laser bandwidth available at 527 nm could be used to decrease backscatter. These larger targets with higher energy and power may offer a better chance of achieving ignition with only modest changes to the NIF laser.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA). Office of Defense Programs (DP); USDOE
Grant/Contract Number:
89233218CNA000001; AC52-07NA27344; AC52-06NA25396
OSTI ID:
1868271
Alternate ID(s):
OSTI ID: 1784784
Report Number(s):
LA-UR-20-29072; TRN: US2306255
Journal Information:
Physics of Plasmas, Vol. 28, Issue 5; ISSN 1070-664X
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (59)

First beryllium capsule implosions on the National Ignition Facility journal May 2016
Understanding ICF hohlraums using NIF gated laser-entrance-hole images journal February 2020
Mixing in ICF implosions on the National Ignition Facility caused by the fill-tube journal March 2020
Recent and planned hydrodynamic instability experiments on indirect-drive implosions on the National Ignition Facility journal August 2020
The I-Raum: A new shaped hohlraum for improved inner beam propagation in indirectly-driven ICF implosions on the National Ignition Facility journal January 2018
Progress of indirect drive inertial confinement fusion in the United States journal July 2019
High-density carbon ablator experiments on the National Ignition Facility journal May 2014
Mitigation of cross-beam energy transfer in inertial-confinement-fusion plasmas with enhanced laser bandwidth journal June 2018
Multimode short-wavelength perturbation growth studies for the National Ignition Facility double-shell ignition target designs journal April 2004
The feasibility of inertial‐confinement fusion journal September 1982
Hotspot parameter scaling with velocity and yield for high-adiabat layered implosions at the National Ignition Facility journal August 2020
Low Fuel Convergence Path to Direct-Drive Fusion Ignition journal June 2016
Point design targets, specifications, and requirements for the 2010 ignition campaign on the National Ignition Facility journal May 2011
Large bandwidth frequency-converted Nd:glass laser at 527 nm with Δν/ν=2% journal May 1993
Stimulated scattering in laser driven fusion and high energy density physics experiments journal September 2014
Tuning the Implosion Symmetry of ICF Targets via Controlled Crossed-Beam Energy Transfer journal January 2009
Hotspot conditions achieved in inertial confinement fusion experiments on the National Ignition Facility journal May 2020
Cryogenic tritium-hydrogen-deuterium and deuterium-tritium layer implosions with high density carbon ablators in near-vacuum hohlraums journal June 2015
The role of a detailed configuration accounting (DCA) atomic physics package in explaining the energy balance in ignition-scale hohlraums journal September 2011
Experimental study of energy transfer in double shell implosions journal May 2019
The relationship between gas fill density and hohlraum drive performance at the National Ignition Facility journal May 2017
Observation of near-forward stimulated Brillouin scattering from a laser-produced plasma journal February 1993
Progress towards a more predictive model for hohlraum radiation drive and symmetry journal May 2017
A comparison of three-dimensional multimode hydrodynamic instability growth on various National Ignition Facility capsule designs with HYDRA simulations journal April 1998
Toward a burning plasma state using diamond ablator inertially confined fusion (ICF) implosions on the National Ignition Facility (NIF) journal November 2018
Kinetic physics in ICF: present understanding and future directions journal April 2018
Impact of Localized Radiative Loss on Inertial Confinement Fusion Implosions journal April 2020
Optimized beryllium target design for indirectly driven inertial confinement fusion experiments on the National Ignition Facility journal February 2014
Self-Organized Bursts of Coherent Stimulated Raman Scattering and Hot Electron Transport in Speckled Laser Plasma Media journal June 2012
Prospects for high-gain, high yield National Ignition Facility targets driven by 2ω (green) light journal May 2004
Description of the NIF Laser journal February 2016
Fusion Energy Output Greater than the Kinetic Energy of an Imploding Shell at the National Ignition Facility journal June 2018
A high-resolution integrated model of the National Ignition Campaign cryogenic layered experiments journal May 2012
Long Pulse Laser-Plasma Interactions conference July 1988
Trapping induced nonlinear behavior of backward stimulated Raman scattering in multi-speckled laser beams journal May 2012
Ultrahigh performance three-dimensional electromagnetic relativistic kinetic plasma simulation journal May 2008
Beyond alpha-heating: driving inertially confined fusion implosions toward a burning-plasma state on the National Ignition Facility journal November 2018
Review of hydrodynamic instability experiments in inertially confined fusion implosions on National Ignition Facility journal October 2019
Wetted foam liquid fuel ICF target experiments journal May 2016
Advances in petascale kinetic plasma simulation with VPIC and Roadrunner journal July 2009
First study of Hohlraum x-ray preheat asymmetry inside an ICF capsule journal December 2020
Indirect-drive noncryogenic double-shell ignition targets for the National Ignition Facility: Design and analysis journal May 2002
Design considerations for indirectly driven double shell capsules journal September 2018
Radiation driven Hohlraum using 2 ω for ICF implosions at the NIF journal August 2020
Damage Mechanisms Avoided or Managed for NIF Large Optics journal February 2016
High-Performance Indirect-Drive Cryogenic Implosions at High Adiabat on the National Ignition Facility journal September 2018
Progress toward Ignition with Noncryogenic Double-Shell Capsules journal May 2000
Theory of hydro-equivalent ignition for inertial fusion and its applications to OMEGA and the National Ignition Facility journal May 2014
Inertially confined fusion plasmas dominated by alpha-particle self-heating journal April 2016
Three-dimensional modeling and hydrodynamic scaling of National Ignition Facility implosions journal May 2019
Demonstration of high-energy 2ω (5265 nm) operation on the National Ignition Facility Laser System journal January 2008
The development and advantages of beryllium capsules for the National Ignition Facility journal May 1998
A review of laser–plasma interaction physics of indirect-drive fusion journal September 2013
Deficiencies in compression and yield in x-ray-driven implosions journal November 2020
Saturation of cross-beam energy transfer for multispeckled laser beams involving both ion and electron dynamics journal August 2019
Indirect drive ignition at the National Ignition Facility journal October 2016
A summary of explorations into the use of green light for high-gain, high-yield experiments on the National Ignition Facility journal November 2004
Thin Shell, High Velocity Inertial Confinement Fusion Implosions on the National Ignition Facility journal April 2015
Multi-beam effects on backscatter and its saturation in experiments with conditions relevant to ignition journal May 2011