Recent results of a study on the injected entropy approach to the ignition of high gain targets

A. Caruso, C. Strangio

Research output: Contribution to conferencePaper

Abstract

The most recent results on the injected entropy method to the ignition of high gain targets are presented. The base of the method is the ignition of high gain targets by energy injection in the final stages of the fuel implosion (but well before its stagnation). In this scheme most of the energy needed to form the ignition spark is still provided by the work of the imploding target itself, as in the standard ICF scheme. The injected energy is used to set on a higher adiabat that small portion of the fuel destined to become the ignition spark. After a short analytical introduction to the method, the results of extensive numerical simulations by a 2-D code are presented. The considered cases refer to imploding cylinders of finite length. The additional energy was injected axially by one or two opposing beams, whereas the acceleration stage of the cylindrical low-entropy implosion was assumed driven by a different driver. Heavy ion beams (HIB), soft x-rays (SXR) and laser generated light ion beams (LIB) were considered as vectors for the entropy injection. Issues related to the feasibility of these generators are discussed. The study was made for various initial conditions leading to different ignition modes and burn propagation.
Original languageEnglish
DOIs
Publication statusPublished - 2001
Externally publishedYes
EventECLIM 2000: 26th European Conference on Laser Interaction with Matter - , Czech Republic
Duration: 1 Jan 2001 → …

Conference

ConferenceECLIM 2000: 26th European Conference on Laser Interaction with Matter
CountryCzech Republic
Period1/1/01 → …

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Caruso, A., & Strangio, C. (2001). Recent results of a study on the injected entropy approach to the ignition of high gain targets. Paper presented at ECLIM 2000: 26th European Conference on Laser Interaction with Matter, Czech Republic. https://doi.org/10.1117/12.425536