Observatorio de I+D+i UPM

Memorias de investigación
Conferences:
Ion driven fast ignition of inertial fusion targets
Year:2017
Research Areas
  • Physics - Plasma and fluid
Information
Abstract
We review the standard proton fast ignition (pFI) scheme taking into account i) beam divergence, ii) collective effects due to the self-generated resistive fields and iii) an improved model for stopping power. The divergence study is motivated by the important proton beam divergence observed in PIC simulations at the tip of the cone typically used for pFI. Collective effects have been explored because hybrid simulations have shown that resistive fields can affect ion beam propagation from the cone to the core, increasing moderately (?10%) the proton beam ignition energies reported so far. Regarding the stopping power model, recent experiment have shown a good agreement with the BPS stopping model and substantial differences with the standard stopping models. Therefore, as the ranges predicted by the BPS model are 20-30% higher, the optimal ion kinetic energies required to obtain the minimum ignition energies should be reduced. The relevance of the three effects mentioned above will be analysed within the context of pFI. Despite the goal of our study has been to evaluate the minimum ignition energies of pFI, the importance of resistive fields and BPS stopping in high energy density matter generation will be discussed as well.
International
Si
2468-080X
Entity
Entity Nationality
CHINA
Place
Being, China
Participants
  • Autor: Jose Javier Honrubia Checa (UPM)
  • Autor: Weiquan Wang (Universidad Nacional de Tecnologías de la Defensa, Changsha, Hunan, China)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Investigación en Fusión Inercial y Física de Plasmas
  • Departamento: Física Aplicada a Las Ingenierías Aeronáutica y Naval
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