A novel design concept in direct drive inertial confinement fusion utilizes a shell, which is developed from a spherical pellet of liquid DT and then imploded to produce conventional central hot-spot ignition [see Goncharov et al., Phys. Rev. Lett. 125, 065001 (2020)]. The stability of such a dynamic shell to short- and long-wavelength perturbations is of a great interest and importance since these perturbations can result in degradation of implosion performance. We investigate the evolution long-wavelength asymmetries (with spherical modes L < 50) in dynamic shell designs using the 3-D hydrodynamic code ASTER. Simulations help to identify the dependency of implosion performance on assumed mode perturbations. Results of these simulations will guide designs of proof-of-principal experiments on dynamic shell formation on OMEGA and NIF. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856 and ARPA-E BETHE Grant No. DE-FOA-0002212.

Dynamic Shell Stability to Low-Mode Perturbations / Igumenshchev, Igor; N Goncharov, Valeri; M Campbell, Edward; J Collins, Timothy; J Rosenberg, Michael; Shaffer, Nathaniel; R Theobald, Wolfgang; T Trickey, William; C Shah, Rahul; Shvydky, Alex; Colaitis, Arnaud; Atzeni, Stefano; Savino, Lorenzo. - 66:(2021). (Intervento presentato al convegno 63rd Annual Meeting of the APS Division of Plasma Physics tenutosi a Pittsburgh, PA).

Dynamic Shell Stability to Low-Mode Perturbations

Stefano Atzeni;Lorenzo Savino
2021

Abstract

A novel design concept in direct drive inertial confinement fusion utilizes a shell, which is developed from a spherical pellet of liquid DT and then imploded to produce conventional central hot-spot ignition [see Goncharov et al., Phys. Rev. Lett. 125, 065001 (2020)]. The stability of such a dynamic shell to short- and long-wavelength perturbations is of a great interest and importance since these perturbations can result in degradation of implosion performance. We investigate the evolution long-wavelength asymmetries (with spherical modes L < 50) in dynamic shell designs using the 3-D hydrodynamic code ASTER. Simulations help to identify the dependency of implosion performance on assumed mode perturbations. Results of these simulations will guide designs of proof-of-principal experiments on dynamic shell formation on OMEGA and NIF. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856 and ARPA-E BETHE Grant No. DE-FOA-0002212.
2021
63rd Annual Meeting of the APS Division of Plasma Physics
04 Pubblicazione in atti di convegno::04d Abstract in atti di convegno
Dynamic Shell Stability to Low-Mode Perturbations / Igumenshchev, Igor; N Goncharov, Valeri; M Campbell, Edward; J Collins, Timothy; J Rosenberg, Michael; Shaffer, Nathaniel; R Theobald, Wolfgang; T Trickey, William; C Shah, Rahul; Shvydky, Alex; Colaitis, Arnaud; Atzeni, Stefano; Savino, Lorenzo. - 66:(2021). (Intervento presentato al convegno 63rd Annual Meeting of the APS Division of Plasma Physics tenutosi a Pittsburgh, PA).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1642841
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