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Warp simulations for capture and control of laser-accelerated proton beams

Nürnberg, Frank ; Friedman, A. ; Grote, D. P. ; Harres, K. ; Logan, B. G. ; Schollmeier, M. ; Roth, Markus (2010)
Warp simulations for capture and control of laser-accelerated proton beams.
In: Journal of Physics: Conference Series, 244 (2)
doi: 10.1088/1742-6596/244/2/022052
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

The capture of laser-accelerated proton beams accompanied by co-moving electrons via a solenoid field has been studied with particle-in-cell simulations. The main advantages of the Warp simulation suite that we have used, relative to envelope or tracking codes, are the possibility of including all source parameters energy resolved, adding electrons as second species and considering the non-negligible space-charge forces and electrostatic self-fields. It was observed that the influence of the electrons is of vital importance. The magnetic effect on the electrons outbalances the space-charge force. Hence, the electrons are forced onto the beam axis and attract protons. Beside the energy dependent proton density increase on axis, the change in the particle spectrum is also important for future applications. Protons are accelerated/decelerated slightly, electrons highly. 2/3 of all electrons get lost directly at the source and 27% of all protons hit the inner wall of the solenoid.

Typ des Eintrags: Artikel
Erschienen: 2010
Autor(en): Nürnberg, Frank ; Friedman, A. ; Grote, D. P. ; Harres, K. ; Logan, B. G. ; Schollmeier, M. ; Roth, Markus
Art des Eintrags: Bibliographie
Titel: Warp simulations for capture and control of laser-accelerated proton beams
Sprache: Englisch
Publikationsjahr: 2010
Ort: Bristol
Verlag: IOP Science
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Journal of Physics: Conference Series
Jahrgang/Volume einer Zeitschrift: 244
(Heft-)Nummer: 2
Kollation: 4 Seiten
DOI: 10.1088/1742-6596/244/2/022052
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Kurzbeschreibung (Abstract):

The capture of laser-accelerated proton beams accompanied by co-moving electrons via a solenoid field has been studied with particle-in-cell simulations. The main advantages of the Warp simulation suite that we have used, relative to envelope or tracking codes, are the possibility of including all source parameters energy resolved, adding electrons as second species and considering the non-negligible space-charge forces and electrostatic self-fields. It was observed that the influence of the electrons is of vital importance. The magnetic effect on the electrons outbalances the space-charge force. Hence, the electrons are forced onto the beam axis and attract protons. Beside the energy dependent proton density increase on axis, the change in the particle spectrum is also important for future applications. Protons are accelerated/decelerated slightly, electrons highly. 2/3 of all electrons get lost directly at the source and 27% of all protons hit the inner wall of the solenoid.

ID-Nummer: Artikel-ID: 022052
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The Sixth International Conference on Inertial Fusion Sciences and Applications

Fachbereich(e)/-gebiet(e): 05 Fachbereich Physik
05 Fachbereich Physik > Institut für Kernphysik
Hinterlegungsdatum: 27 Okt 2014 15:53
Letzte Änderung: 13 Feb 2024 15:27
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