Wire array experiments in a low impedance and low current generator

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dc.contributor.authorCabrini, Nibaldo
dc.contributor.authorPavez, Cristian
dc.contributor.authorAvaria, Gonzalo
dc.contributor.authorSan Martin, Patricio
dc.contributor.authorVeloso, Felipe
dc.contributor.authorZúñiga, Barbara
dc.contributor.authorSepúlveda, Adolfo
dc.contributor.authorSoto, Leopoldo
dc.date.accessioned2023-06-22T21:50:24Z
dc.date.available2023-06-22T21:50:24Z
dc.date.issued2015-03
dc.descriptionIndexación: Scopus.es
dc.description.abstractIn this work, a preliminary study about the behavior of a low impedance generator on different wire array configurations is reported. The experimental measurements were carried out on a small multi-purpose generator (1.2μF, 345J, 47.5nH, T/4=375 ns and Z=0.2 in short circuit) which produces currents up to 122 kA with 500 ns quarter period, when a charging voltage of 24kV and a wire load are used. Two types of configurations were tested: parallel wires (two and four) and X-pinch configurations. The experiments were carried out on W, Al, and Cu wires with different diameters. The discharge was characterized by means of a set of diagnostics which included: Rogowski coil; filtered PCD detector; filtered PIN diode; gated VUV/soft X-ray pinhole camera, Shadow diagnostic and dark field Schlieren technique. From the set of experimental results, the following observations can be established: (i) The generator is highly sensitive to the changes of load impedance due to its low impedance design. (ii) Every shot shows a dip in the current derivative signal shortly after the discharge onset time (from 6 to 40 ns), which is inversely related to the load resistance. (iii) Both configurations show a similar dynamic to those observed in experiments of higher current and shorter quarter period. (iv) At the X-pinch experiments, two or more hard X-ray bursts are detected, around 200 ns from the current onset time. These X-ray bursts are correlated with the dips observed in the current derivative signal.es
dc.description.urihttps://iopscience-iop-org.recursosbiblioteca.unab.cl/article/10.1088/1742-6596/591/1/012026
dc.identifier.citationJournal of Physics: Conference Series. Volume 591, Issue 1. 24 March 2015. Article number 01202615th Latin American Workshop on Plasma Physics, LAWPP 2014 and 21st IAEA TM on Research Using Small Fusion Devices, RUSFD 2014. San Jose. 27 January 2014through 31 January 2014. Code 113197es
dc.identifier.doi10.1088/1742-6596/591/1/012026
dc.identifier.issn1742-6588
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/51005
dc.language.isoenes
dc.publisherInstitute of Physics Publishinges
dc.rights.licenseAtribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/deed.es
dc.subjectLow Impedance Generatores
dc.subjectLow Currentes
dc.subjectMulti-Purpose Generatores
dc.titleWire array experiments in a low impedance and low current generatores
dc.typeArtículoes
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