Optical measurements in an exploding wire experiment

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: Pouzo, Jorge O., Bilbao, Luis Ernesto
Publicado: 1997
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004640X_v256_n1-2_p467_Bibbo
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
id paper:paper_0004640X_v256_n1-2_p467_Bibbo
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spelling paper:paper_0004640X_v256_n1-2_p467_Bibbo2023-06-08T14:29:28Z Optical measurements in an exploding wire experiment Pouzo, Jorge O. Bilbao, Luis Ernesto 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. 1997 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004640X_v256_n1-2_p467_Bibbo 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.
author Pouzo, Jorge O.
Bilbao, Luis Ernesto
spellingShingle Pouzo, Jorge O.
Bilbao, Luis Ernesto
Optical measurements in an exploding wire experiment
author_facet Pouzo, Jorge O.
Bilbao, Luis Ernesto
author_sort Pouzo, Jorge O.
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
publishDate 1997
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_0004640X_v256_n1-2_p467_Bibbo
http://hdl.handle.net/20.500.12110/paper_0004640X_v256_n1-2_p467_Bibbo
work_keys_str_mv AT pouzojorgeo opticalmeasurementsinanexplodingwireexperiment
AT bilbaoluisernesto opticalmeasurementsinanexplodingwireexperiment
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