On intense proton beam generation and transport in hollow cones

Honrubia Checa, Jose Javier and Morace, A. and Murakami, M. (2017). On intense proton beam generation and transport in hollow cones. "Matter and radiation at extremes", v. 2 ; pp. 28-36. ISSN 2468-080X. https://doi.org/10.1016/j.mre.2016.11.001.

Description

Title: On intense proton beam generation and transport in hollow cones
Author/s:
  • Honrubia Checa, Jose Javier
  • Morace, A.
  • Murakami, M.
Item Type: Article
Título de Revista/Publicación: Matter and radiation at extremes
Date: 2017
ISSN: 2468-080X
Volume: 2
Subjects:
Freetext Keywords: Inertial fusion energy; Ion fast ignition; Laser driven ion acceleration
Faculty: E.T.S. de Ingeniería Aeronáutica y del Espacio (UPM)
Department: Física Aplicada a las Ingenierías Aeronáutica y Naval
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Proton generation, transport and interaction with hollow cone targets are investigated by means of two-dimensional PIC simulations. A scaled-down hollow cone with gold walls, a carbon tip and a curved hydrogen foil inside the cone has been considered. Proton acceleration is driven by a 1020 W$cm?2 and 1 ps laser pulse focused on the hydrogen foil. Simulations show an important surface current at the cone walls which generates a magnetic field. This magnetic field is dragged by the quasi-neutral plasma formed by fast protons and co-moving electrons when they propagate towards the cone tip. As a result, a tens of kT Bz field is set up at the cone tip, which is strong enough to deflect the protons and increase the beam divergence substantially. We propose using heavy materials at the cone tip and increasing the laser intensity in order to mitigate magnetic field generation and proton beam divergence. Copyright © 2016 Science and Technology Information Center, China Academy of Engineering Physics. Production and hosting by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

Funding Projects

TypeCodeAcronymLeaderTitle
Government of SpainENE2014-54960-RUnspecifiedUnspecifiedProcesos físicos en fusión por confinamiento inercial y esquemas de ignición

More information

Item ID: 50479
DC Identifier: http://oa.upm.es/50479/
OAI Identifier: oai:oa.upm.es:50479
DOI: 10.1016/j.mre.2016.11.001
Official URL: https://www.sciencedirect.com/science/article/pii/S2468080X16300826#ack0010
Deposited by: Memoria Investigacion
Deposited on: 31 Oct 2018 12:45
Last Modified: 26 Mar 2019 10:00
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