Bulletin of the American Physical Society
64th Annual Meeting of the APS Division of Plasma Physics
Volume 67, Number 15
Monday–Friday, October 17–21, 2022; Spokane, Washington
Session JO08: Laser-Plasma Ion Accelerators
2:00 PM–4:48 PM,
Tuesday, October 18, 2022
Room: 402 ABC
Chair: Robbie Scott, STFC Rutherford Appleton Laboratory
Abstract: JO08.00012 : Double in-line plasma-mirror-based contrast enhanced laser-ion acceleration at the Centre for Advanced Laser Applications
4:12 PM–4:24 PM
Presenter:
Valeriu Scutelnic
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Authors:
Valeriu Scutelnic
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Martin Speicher
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Katherine Kokmanian
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Anja Schuster
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Bruno González-Izquierdo
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Vahe Shirvanyan
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Jens Hartmann
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Marius Schollmeier
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Georg Korn
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Felix Balling
(Ludwig-Maximilians-Universität München, Department for Medical Physics, Am Coulombwall 1, 85748 Garching, Germany)
Sonia Gerlach
(Ludwig-Maximilians-Universität München, Department for Medical Physics, Am Coulombwall 1, 85748 Garching, Germany)
Alexander Prasselsperger
(Ludwig-Maximilians-Universität München, Department for Medical Physics, Am Coulombwall 1, 85748 Garching, Germany)
Leonard Doyle
(Ludwig-Maximilians-Universität München, Department for Medical Physics, Am Coulombwall 1, 85748 Garching, Germany)
Florian Schweiger
(Ludwig-Maximilians-Universität München, Department for Medical Physics, Am Coulombwall 1, 85748 Garching, Germany)
Georg Schilling
(Ludwig-Maximilians-Universität München, Chair of Experimental Physics – Laser Physics, Am Coulombwall 1, 85748 Garching, Germany)
Andreas Münzer
(Ludwig-Maximilians-Universität München, Chair of Experimental Physics – Laser Physics, Am Coulombwall 1, 85748 Garching, Germany)
Jörg Schreiber
(Ludwig-Maximilians-Universität München, Department for Medical Physics, Am Coulombwall 1, 85748 Garching, Germany)
Sven Steinke
(Marvel Fusion GmbH, Blumenstraße 28, 80331 Munich, Germany)
Reflectance measurements yielded a contrast enhancement of 10^2 and 10^4 for uncoated and AR-coated substrates, respectively. We investigated the maximum kinetic proton energy, transverse proton beam profiles and laser-to-ion conversion efficiency.
Without plasma mirrors the maximum achieved kinetic proton energies along target normal diminished with decreasing target thickness observing no protons when irradiating 10 nm thin foils. The addition of plasma mirrors yielded increased particle numbers and a proton signal for the entire range of target thicknesses. With uncoated substrates, kinetic proton energies peaked at a target thickness of 25 nm. With coated substrates we see increasing kinetic energies towards thinner targets.
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