Observatorio de I+D+i UPM

Memorias de investigación
Ion driven fast ignition of inertial fusion targets
Research Areas
  • Physics - Plasma and fluid
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.
Entity Nationality
Being, China
  • 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
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)