Optimal laser intensity profiles for a uniform target illumination in direct-drive inertial confinement fusion

Temporal, Mauro and Canaud, B. and Garbett, Warren J. and Ramis Abril, Rafael (2014). Optimal laser intensity profiles for a uniform target illumination in direct-drive inertial confinement fusion. "High Power laser Science and Engineering", v. 2 (n. e37); pp. 1-6. ISSN 1359-8139. https://doi.org/10.1017/hpl.2014.42.

Description

Title: Optimal laser intensity profiles for a uniform target illumination in direct-drive inertial confinement fusion
Author/s:
  • Temporal, Mauro
  • Canaud, B.
  • Garbett, Warren J.
  • Ramis Abril, Rafael
Item Type: Article
Título de Revista/Publicación: High Power laser Science and Engineering
Date: December 2014
ISSN: 1359-8139
Volume: 2
Subjects:
Freetext Keywords: direct drive; inertial confinement fusion; laser system
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Física Aplicada a las Ingenierías Aeronáutica y Naval
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A numerical method providing the optimal laser intensity profiles for a direct-drive inertial confinement fusion scheme has been developed. The method provides an alternative approach to phase-space optimization studies, which can prove computationally expensive. The method applies to a generic irradiation configuration characterized by an arbitrary number NB of laser beams provided that they irradiate the whole target surface, and thus goes beyond previous analyses limited to symmetric configurations. The calculated laser intensity profiles optimize the illumination of a spherical target. This paper focuses on description of the method, which uses two steps: first, the target irradiation is calculated for initial trial laser intensities, and then in a second step the optimal laser intensities are obtained by correcting the trial intensities using the calculated illumination. A limited number of example applications to direct drive on the Laser MegaJoule (LMJ) are described.

More information

Item ID: 35813
DC Identifier: http://oa.upm.es/35813/
OAI Identifier: oai:oa.upm.es:35813
DOI: 10.1017/hpl.2014.42
Deposited by: Memoria Investigacion
Deposited on: 17 Jun 2015 17:48
Last Modified: 17 Jun 2015 17:48
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