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Descripción
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| 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. | |
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Internacional
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Si |
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ISSN o ISBN
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2468-080X |
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Entidad relacionada
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Nacionalidad Entidad
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CHINA |
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Lugar del congreso
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Being, China |