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 BO06: High-Z, Multiply Ionized Atomic Physics
9:30 AM–11:54 AM,
Monday, October 17, 2022
Room: Ballroom 111 C
Chair: Mark Zammit, LANL
Abstract: BO06.00006 : Atomic and radiative processes in X-Ray driven plasma ablation experiments performed on the MAGPIE pulsed-power generator*
10:30 AM–10:42 AM
Presenter:
Jack W Halliday
(Imperial College London)
Authors:
Jack W Halliday
(Imperial College London)
Aidan C Crilly
(Imperial College London)
Jeremy P Chittenden
(Imperial College London)
Roberto C Mancini
(University of Nevada, Reno)
Stefano Merlini
(Imperial College London)
Steven J Rose
(Imperial College London)
Danny R Russell
(Imperial College London)
Jergus Strucka
(Imperial College London)
Vicente Valenzuela-Villaseca
(Imperial College London)
Simon N Bland
(Imperial College London)
Sergey V Lebedev
(Imperial College London)
Experiments were fielded on the MAGPIE generator (1.4 MA, 240 ns rise time). On this machine, a wire array Z-pinch produces an x-ray pulse carrying a total energy of ∼15 kJ over ∼30 ns. This equates to a brightness temperature of ∼ 10 eV on-target. The plasmas were diagnosed with a suite of diagnostics including interferometry, Faraday rotation, Thomson scattering [2], and x-ray absorption spectroscopy.
Initial results indicate that the charge state distribution in the plasma is perturbed by the presence of the driving radiation field. We also note that radiative cooling plays a role in determining the structures observed in collisions of ablated plasma flows.
[1] J W D Halliday et al PoP 2022 DOI: 10.1063/5.0084550
[2] L G Suttle et al RSI 2021 DOI: 10.1063/5.0041118
*Supported by the US DOE under Award No DE-SC0020434 and DE-NA0003764, and by the US DTRA under Award No HDTRA1-20-1-0001
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