Quasi-steady expansion of plasma ablated from laser-irradiated pellets

Sanz Recio, Javier and Liñán Martínez, Amable and Rodríguez Fernández, Manuel and Sanmartín Losada, Juan Ramón (1981). Quasi-steady expansion of plasma ablated from laser-irradiated pellets. "Physics of Fluids", v. 24 (n. 11); pp. 2098-2106. ISSN 0031-9171.

Description

Title: Quasi-steady expansion of plasma ablated from laser-irradiated pellets
Author/s:
  • Sanz Recio, Javier
  • Liñán Martínez, Amable
  • Rodríguez Fernández, Manuel
  • Sanmartín Losada, Juan Ramón
Item Type: Article
Título de Revista/Publicación: Physics of Fluids
Date: 1981
ISSN: 0031-9171
Volume: 24
Subjects:
Faculty: E.T.S.I. Aeronáuticos (UPM)
Department: Motopropulsión y Termofluidodinámica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

The ablative, quasi-steady expansion of the spherical coronal plasma produced by irradiating an overdense pellet by a high-intensity laser pulse, is studied for large ion charge number Z;. The entire structure of the flow and its changes as the laser power is increased, are determined. The instantaneous power W required to generate a given ablation pressure Pa and pellet radius rB at any time is determined in terms of Z,-, ion mass m,, and critical density; the mass ablation rate is also found. If the time law PB {t) and (consequently) ra {t) for a desired optimal compression of the pellet are determined independently, the results allow one to obtain the laser power history W[t) = W[Ptl\t),rtt\t),Zj,ml,ne]. For a critical radius much larger than ra, most of the energy flows outward; this seems to invalidate known simple estimates of the relation W[Pa).

More information

Item ID: 1378
DC Identifier: http://oa.upm.es/1378/
OAI Identifier: oai:oa.upm.es:1378
Official URL: http://pof.aip.org/
Deposited by: Biblioteca ETSI Aeronauticos
Deposited on: 21 Feb 2009
Last Modified: 20 Apr 2016 06:48
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