Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses

High quality energetic carbon ions produced via laser-plasma have many applications in tumor therapy, fast ignition and warm dense matter generation. However, the beam achieved in current experiments is still limited by either a large energy spread or a low peak energy. In this paper, a hybrid schem...

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Principais autores: Yuqing Wei, Weiquan Wang, Yanting Hu, Debin Zou, Tongpu Yu, Fuqiu Shao
Formato: Artigo
Idioma:English
Publicado em: IOP Publishing 2023-01-01
coleção:New Journal of Physics
Assuntos:
Acesso em linha:https://doi.org/10.1088/1367-2630/acd572
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author Yuqing Wei
Weiquan Wang
Yanting Hu
Debin Zou
Tongpu Yu
Fuqiu Shao
author_facet Yuqing Wei
Weiquan Wang
Yanting Hu
Debin Zou
Tongpu Yu
Fuqiu Shao
author_sort Yuqing Wei
collection DOAJ
description High quality energetic carbon ions produced via laser-plasma have many applications in tumor therapy, fast ignition and warm dense matter generation. However, the beam achieved in current experiments is still limited by either a large energy spread or a low peak energy. In this paper, a hybrid scheme for the generation of quasi-monoenergetic carbon ions is proposed by an ultra-intense laser pulse irradiating a double-layer target. Multi-dimensional particle-in-cell (PIC) simulations show that the carbon ions are first accelerated via laser piston mechanism in the former carbon layer and then further accelerated by Coulomb repulsion force in the attached neon target. Since electrons are bunched synchronously in longitudinal and transverse direction by radiation reaction during the whole acceleration process, a quasi-monoenergetic carbon ion beam is eventually produced. In the following stage, the neon target provides the Coulomb field required for the continuous acceleration of the carbon ions which helps to prevent the carbon ion layer from diffusion. It is demonstrated that quasi-monoenergetic carbon ions with peak energy of 465 MeV u ^−1 , energy spread of ∼13%, a divergence of ∼15 ^∘ , and laser-to-ion energy conversion of 20% can be achieved by using a laser pulse with intensity of 1.23 × 10 ^23 W cm ^−2 . An analytical model is also proposed to interpret the carbon ion acceleration, which is fairly consistent with the PIC simulations.
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spelling doaj.art-7d3235afd05e4345b6144c881f93af1f2023-08-09T14:14:48ZengIOP PublishingNew Journal of Physics1367-26302023-01-0125505302310.1088/1367-2630/acd572Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulsesYuqing Wei0Weiquan Wang1Yanting Hu2https://orcid.org/0000-0003-4848-6137Debin Zou3https://orcid.org/0000-0002-0300-6366Tongpu Yu4https://orcid.org/0000-0002-4302-9335Fuqiu Shao5Department of Physics, National University of Defense Technology , Changsha 410073, People’s Republic of ChinaDepartment of Physics, National University of Defense Technology , Changsha 410073, People’s Republic of ChinaDepartment of Physics, National University of Defense Technology , Changsha 410073, People’s Republic of ChinaDepartment of Physics, National University of Defense Technology , Changsha 410073, People’s Republic of ChinaDepartment of Physics, National University of Defense Technology , Changsha 410073, People’s Republic of ChinaDepartment of Physics, National University of Defense Technology , Changsha 410073, People’s Republic of ChinaHigh quality energetic carbon ions produced via laser-plasma have many applications in tumor therapy, fast ignition and warm dense matter generation. However, the beam achieved in current experiments is still limited by either a large energy spread or a low peak energy. In this paper, a hybrid scheme for the generation of quasi-monoenergetic carbon ions is proposed by an ultra-intense laser pulse irradiating a double-layer target. Multi-dimensional particle-in-cell (PIC) simulations show that the carbon ions are first accelerated via laser piston mechanism in the former carbon layer and then further accelerated by Coulomb repulsion force in the attached neon target. Since electrons are bunched synchronously in longitudinal and transverse direction by radiation reaction during the whole acceleration process, a quasi-monoenergetic carbon ion beam is eventually produced. In the following stage, the neon target provides the Coulomb field required for the continuous acceleration of the carbon ions which helps to prevent the carbon ion layer from diffusion. It is demonstrated that quasi-monoenergetic carbon ions with peak energy of 465 MeV u ^−1 , energy spread of ∼13%, a divergence of ∼15 ^∘ , and laser-to-ion energy conversion of 20% can be achieved by using a laser pulse with intensity of 1.23 × 10 ^23 W cm ^−2 . An analytical model is also proposed to interpret the carbon ion acceleration, which is fairly consistent with the PIC simulations.https://doi.org/10.1088/1367-2630/acd572laser-plasma interactionextreme laser fieldion acceleration
spellingShingle Yuqing Wei
Weiquan Wang
Yanting Hu
Debin Zou
Tongpu Yu
Fuqiu Shao
Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses
New Journal of Physics
laser-plasma interaction
extreme laser field
ion acceleration
title Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses
title_full Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses
title_fullStr Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses
title_full_unstemmed Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses
title_short Quasi-monoenergetic carbon ions generation from a double-layer target driven by extreme laser pulses
title_sort quasi monoenergetic carbon ions generation from a double layer target driven by extreme laser pulses
topic laser-plasma interaction
extreme laser field
ion acceleration
url https://doi.org/10.1088/1367-2630/acd572
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