Fundamental factors affecting thermonuclear ignition

Cheng, Baolian; Bradley, Paul A.; Finnegan, Sean M.; Thomas, Cliff A.

doi:10.1088/1741-4326/ac12ea

Fundamental factors affecting thermonuclear ignition

Journal Article · Fri Jul 30 00:00:00 EDT 2021 · Nuclear Fusion

DOI:https://doi.org/10.1088/1741-4326/ac12ea· OSTI ID:1888219

^[1]; ^[1]; ^[1]; Thomas, Cliff A. ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of Rochester, NY (United States)

Recent inertial confinement fusion experiments on the National Ignition Facility (NIF) have improved performance and interpretability. These results help us address hydrodynamic efficiency, pusher adiabat, tamping, and hot-spot confinement as they pertain to criteria for ignition. Here, we present requirements for propagating burn that are stringent compared to existing literature. The effects of the pusher adiabat on the energy partition for the cold and hot DT are addressed, as well as the persistent discrepancy between the observed and simulated neutron down scattering ratio. The required energy for achieving ignition on NIF and paths forward to optimize or increase the capsule yields for given laser energy are also discussed.

View Accepted Manuscript (DOE)

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: 89233218CNA000001

OSTI ID:: 1888219

Alternate ID(s):: OSTI ID: 23131904

Report Number(s):: LA-UR-21-23111

Journal Information:: Nuclear Fusion, Journal Name: Nuclear Fusion Journal Issue: 9 Vol. 61; ISSN 0029-5515

Publisher:: IOP ScienceCopyright Statement

Country of Publication:: United States

Language:: English

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