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 TO08: Beams: X-Ray Sources and X-Ray Diagnostics
9:30 AM–12:30 PM,
Thursday, October 20, 2022
Room: 402 ABC
Chair: Matthew Edwards, Lawrence Livermore Natl Lab
Abstract: TO08.00015 : Study of the influence of various pre-plasma conditions on laser-proton acceleration via x-ray spectroscopy
12:18 PM–12:30 PM
Presenter:
Radka Stefanikova
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Authors:
Radka Stefanikova
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Xiayun Pan
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Michal Smid
(Helmholtz-Zentrum Dresden-Rossendorf)
Lennart Gaus
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Michaela Kozlova
(Helmholtz-Zentrum Dresden-Rossendorf, IP ASCR)
Stefan Kraft
(Helmholtz-Zentrum Dresden-Rossendorf)
Florian Kroll
(Helmholtz-Zentrum Dresden-Rossendorf)
Irene Prencipe
(Helmholtz-Zentrum Dresden-Rossendorf)
Marvin Reimold
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Hans-Peter Schlenvoigt
(Helmholtz-Zentrum Dresden-Rossendorf)
Marvin Umlandt
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Ulrich Schramm
(Helmholtz-Zentrum Dresden-Rossendorf, TU Dresden)
Karl Zeil
(Helmholtz-Zentrum Dresden-Rossendorf)
Josefine Metzkes-Ng
(Helmholtz-Zentrum Dresden-Rossendorf)
Katerina Falk
(Helmholtz-Zentrum Dresden-Rossendorf)
Here, we present an x-ray spectroscopy platform installed at the Draco PW laser facility (Ti:sapphire 30 fs laser system) and how the addition of x-ray spectroscopy reveals the suprathermal electron population, which provides insight into the energy conversion from laser to the proton-accelerating sheath.
As an example, we study the impact of pre-plasma tailoring on characteristic x-ray emission and proton acceleration via controlled introduction of various pre-pulses on the Ti 2 μm thick target that precede the arrival of the main laser pulse by 2.5 − 30 ps. Based on our data from x-ray spectroscopy combined with proton diagnostics we then gain understanding of the underlying processes in proton acceleration and the influence of pre-plasma formation.
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