Improving particle beam acceleration in plasmas

Autor(es)

de Sousa, M. C. ^[1] ; Caldas, I. L. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Phys, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Physics of Plasmas; v. 25, n. 4 APR 2018.
• Citações Web of Science: 0

Resumo

The dynamics of wave-particle interactions in magnetized plasmas restricts the wave amplitude to moderate values for particle beam acceleration from rest energy. We analyze how a perturbing invariant robust barrier modifies the phase space of the system and enlarges the wave amplitude interval for particle acceleration. For low values of the wave amplitude, the acceleration becomes effective for particles with initial energy close to the rest energy. For higher values of the wave amplitude, the robust barrier controls chaos in the system and restores the acceleration process. We also determine the best position for the perturbing barrier in phase space in order to increase the final energy of the particles. Published by AIP Publishing. (AU)

• Processo FAPESP: 15/05186-0 - Bifurcações e controle de caos na interação onda-partícula
• Beneficiário: Meirielen Caetano de Sousa
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/19296-1 - Dinâmica não linear
• Beneficiário: Iberê Luiz Caldas
• Modalidade de apoio: Auxílio à Pesquisa - Temático