Bulletin of the American Physical Society
63rd Annual Meeting of the APS Division of Plasma Physics
Volume 66, Number 13
Monday–Friday, November 8–12, 2021; Pittsburgh, PA
Session NP11: Poster Session V:
HED
ICF
MFE- Turbulence & Transport
9:30 AM - 12:30 PM
Wednesday, November 10, 2021
Room: Hall A
Abstract: NP11.00143 : Systematic measurements of quasi-static B-fields from laser-driven coil targets in intensity regime relevant for magneto-inertial fusion experiments *
Presenter:
CHRISTOS VLACHOS
(CELIA - University of Bordeaux)
Authors:
CHRISTOS VLACHOS
(CELIA - University of Bordeaux)
Valeria Ospina-Bohorquez
(CELIA - University of Bordeaux)
Gabriel Perez Callejo
(CELIA - University of Bordeaux)
Michael Ehret
(Centro de Laseres Pulsados (CLPU))
Mathieu Bailly-Grandvaux
(University of California, San Diego)
Sophia Malko
(PPPL)
Channprit Kaur
(University of Alberta)
Morgane Lendrin
(CELIA - University of Bordeaux)
Pierre Guillon
(CELIA & Ecole Polytechnique)
Matthew Gjevre
(University of Alberta)
Eitan Soussan
(LULI & Ecole National Supérieure de Lyon)
Michel Koenig
(LULI & Ecole Polytechnique)
Xavier Vaisseau
(CEA, DAM, DIF, F-91297 Arpajon, France)
Laurent Gremillet
(CEA, DAM, DIF, F-91297 Arpajon, France)
Bruno Albertazzi
(LULI & Ecole Polytechnique)
Robert Fedosejevs
(University of Alberta)
Joao J Santos
(University of Bordeaux)
We demonstrated the generation of quasi-static magnetic fields of tens of Teslas using a 500 J, ns laser, focused to ~1015 W/cm2. The B-field was characterized using proton deflectometry at two perpendicular probing axes. Data confrontation with particle test simulations reveal features that can be distinctively linked to the looping current and with static charging of the wire surface. Discharge currents of ˜25 kA (yielding ˜60 T at the center of 500 µm-diameter coils) are fully consistent with our predictions based on the plasma diode model, which has been continuously improved and validated through benchmarking experiments over the past years. The studied intensity regime is of interest for ns laser-drive available at large scale laser facilities such as Omega, NIF, or LMJ, where it is possible to carry out magneto-inertial-fusion experiments.
*Work supported by the NNSA/NLUF Grant DE-NA0003940, Grant No. PID2019-108764RB-I00 (MICINN,
Spain) and EUROfusion Consortium under grant agreement No. 633053.
*Work supported by the NNSA/NLUF Grant DE-NA0003940, Grant No. PID2019-108764RB-I00 (MICINN,Spain) and EUROfusion Consortium under grant agreement No. 633053.
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