Effects of Laser Bandwidth in Direct-Drive High-Performance DT-Layered Implosions on the OMEGA Laser.

Journal

Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141

Informations de publication

Date de publication:
08 Sep 2023
Historique:
received: 10 02 2023
revised: 05 07 2023
accepted: 16 08 2023
medline: 23 9 2023
pubmed: 23 9 2023
entrez: 22 9 2023
Statut: ppublish

Résumé

In direct-drive inertial confinement fusion, the laser bandwidth reduces the laser imprinting seed of hydrodynamic instabilities. The impact of varying bandwidth on the performance of direct-drive DT-layered implosions was studied in targets with different hydrodynamic stability properties. The stability was controlled by changing the shell adiabat from (α_{F}≃5) (more stable) to (α_{F}≃3.5) (less stable). These experiments show that the performance of lower adiabat implosions improves considerably as the bandwidth is raised indicating that further bandwidth increases, beyond the current capabilities of OMEGA, would be greatly beneficial. These results suggest that the future generation of ultra-broadband lasers could enable achieving high convergence and possibly high gains in direct drive ICF.

Identifiants

DOI: 10.1103/PhysRevLett.131.105101 PMID: 37739360
pubmed: 37739360
doi: 10.1103/PhysRevLett.131.105101
doi:

Types de publication

Journal Article

Langues

eng

Sous-ensembles de citation

IM

Pagination

105101

Auteurs

D Patel (D)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.
Department of Mechanical Engineering, University of Rochester, New York 14623, USA.

J P Knauer (JP)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

D Cao (D)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

R Betti (R)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.
Department of Mechanical Engineering, University of Rochester, New York 14623, USA.
Department of Physics and Astronomy, University of Rochester, New York 14623, USA.

R Nora (R)

Lawrence Livermore National Laboratory, Livermore, California 94550, USA.

A Shvydky (A)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

V Gopalaswamy (V)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

A Lees (A)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

S Sampat (S)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

W R Donaldson (WR)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

S P Regan (SP)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

C Stoeckl (C)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

C J Forrest (CJ)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

V Yu Glebov (VY)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

D R Harding (DR)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

M J Bonino (MJ)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

R T Janezic (RT)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

D Wasilewski (D)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

C Fella (C)

Laboratory for Laser Energetics, University of Rochester, New York 14623, USA.

C Shuldberg (C)

General Atomics, San Diego, California 92186, USA.

J Murray (J)

General Atomics, San Diego, California 92186, USA.

D Guzman (D)

General Atomics, San Diego, California 92186, USA.

B Serrato (B)

General Atomics, San Diego, California 92186, USA.

Classifications MeSH