Optical measurements in an exploding wire experiment

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We present optical measurements (Shadow and Schlieren pictures) of a 12.5 Joule exploding wire experiment. After performing a large number of shots some sort of time evolution can be reconstructed from the pictures. The pictures were taken during the dark phase (zero current) and the plasma phase. A...

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Autores principales: Bibbo, L., Giovambatista, N., Gómez, P., Olivieri, M., Tibaldi, C., Bernal, L., Pouzo, J., Bilbao, L.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_0004640X_v256_n1-2_p467_Bibbo
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_0004640X_v256_n1-2_p467_Bibbo2023-10-03T14:02:53Z Optical measurements in an exploding wire experiment Bibbo, L. Giovambatista, N. Gómez, P. Olivieri, M. Tibaldi, C. Bernal, L. Pouzo, J. Bilbao, L. We present optical measurements (Shadow and Schlieren pictures) of a 12.5 Joule exploding wire experiment. After performing a large number of shots some sort of time evolution can be reconstructed from the pictures. The pictures were taken during the dark phase (zero current) and the plasma phase. Although the electrical signals are quite reproducible from shot to shot (allowing a good time correlation and indicating that the global dynamics is reproducible) we observed that the individual details are quite different, probably due to the non-uniformity of the wire. We observed a uniform expansion (the volume increases almost linearly with time) with the presence of surface instabilities and there is no evident difference in the density distribution between the dark and the plasma phases. Finally, we derive a mean radius and velocity evolution with time and an approximate energy balance. Fil:Pouzo, J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bilbao, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_0004640X_v256_n1-2_p467_Bibbo
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description We present optical measurements (Shadow and Schlieren pictures) of a 12.5 Joule exploding wire experiment. After performing a large number of shots some sort of time evolution can be reconstructed from the pictures. The pictures were taken during the dark phase (zero current) and the plasma phase. Although the electrical signals are quite reproducible from shot to shot (allowing a good time correlation and indicating that the global dynamics is reproducible) we observed that the individual details are quite different, probably due to the non-uniformity of the wire. We observed a uniform expansion (the volume increases almost linearly with time) with the presence of surface instabilities and there is no evident difference in the density distribution between the dark and the plasma phases. Finally, we derive a mean radius and velocity evolution with time and an approximate energy balance.
format JOUR
author Bibbo, L.
Giovambatista, N.
Gómez, P.
Olivieri, M.
Tibaldi, C.
Bernal, L.
Pouzo, J.
Bilbao, L.
spellingShingle Bibbo, L.
Giovambatista, N.
Gómez, P.
Olivieri, M.
Tibaldi, C.
Bernal, L.
Pouzo, J.
Bilbao, L.
Optical measurements in an exploding wire experiment
author_facet Bibbo, L.
Giovambatista, N.
Gómez, P.
Olivieri, M.
Tibaldi, C.
Bernal, L.
Pouzo, J.
Bilbao, L.
author_sort Bibbo, L.
title Optical measurements in an exploding wire experiment
title_short Optical measurements in an exploding wire experiment
title_full Optical measurements in an exploding wire experiment
title_fullStr Optical measurements in an exploding wire experiment
title_full_unstemmed Optical measurements in an exploding wire experiment
title_sort optical measurements in an exploding wire experiment
url http://hdl.handle.net/20.500.12110/paper_0004640X_v256_n1-2_p467_Bibbo
work_keys_str_mv AT bibbol opticalmeasurementsinanexplodingwireexperiment
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AT gomezp opticalmeasurementsinanexplodingwireexperiment
AT olivierim opticalmeasurementsinanexplodingwireexperiment
AT tibaldic opticalmeasurementsinanexplodingwireexperiment
AT bernall opticalmeasurementsinanexplodingwireexperiment
AT pouzoj opticalmeasurementsinanexplodingwireexperiment
AT bilbaol opticalmeasurementsinanexplodingwireexperiment
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