Laser initiated hollow gas-embedded Z-pinch

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dc.contributor.authorChuaqui Kettlun, Hernán
dc.contributor.authorAliaga Rossel, Raul
dc.contributor.authorVeloso Espinosa, Felipe
dc.contributor.authorPavez Morales, Cristian Arturo
dc.contributor.authorFavre Domínguez, Mario
dc.contributor.authorMitchell, Ian H.
dc.contributor.authorWyndham Hodder, Edmund Sydenham
dc.date.accessioned2022-05-11T20:05:41Z
dc.date.available2022-05-11T20:05:41Z
dc.date.issued2004
dc.description.abstractResults of new optical method of generating a precursor plasma for a shell gas embedded Z-pinch are presented. Experiments were performed on a pulse power generator using a peak current up to 150 kA with a rise time of 70 ns, 120 ns pulse length. The optical precursor plasma was generated by using a Nd-Y AG laser, 200 ml, 8 ns at 1.06 μm. Two different optical schemes were used, one consists of a combination of lenses capable of producing a hollow beam; while the other uses an axicon to generate the hollow beam. In both cases the hollow beam was focused at the cathode surface where metallic ring plasma, of either 2 or 6 mm diameter, is created. The annular preionization is created immediately before or during the first 30 ns after the line voltage is applied. The discharge was carried out in a chamber filled with hydrogen gas at 1/3 atm. Flat electrodes were used with 10 mm separation. The anode has a 6 mm diameter central hole to allow the passage of the preionizing laser. Optical diagnostics (schlieren, shadowgraphy and interferometry) were performed using the second harmonics of the same laser used to preionize. Preionizing using an axicon results in better formed hollow discharges.
dc.fuente.origenIEEE
dc.identifier.doi10.1063/1.1531322
dc.identifier.isbn978-5879110883
dc.identifier.urihttps://doi.org/10.1063/1.1531322
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6220682
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/63747
dc.information.autorucInstituto de física ; Chuaqui Kettlun, Hernán ; S/I ; 98761
dc.information.autorucInstituto de física ; Aliaga Rossel, Raul ; S/I ; 50868
dc.information.autorucInstituto de física ; Veloso Espinosa, Felipe ; S/I ; 14943
dc.information.autorucInstituto de física ; Pavez Morales, Cristian Arturo ; S/I ; 92840
dc.information.autorucInstituto de física ; Favre Domínguez, Mario Benjamín ; S/I ; 99732
dc.information.autorucInstituto de física ; Mitchell, Ian Hendry ; S/I ; 100503
dc.information.autorucInstituto de física ; Wyndham Hodder, Edmund Sydenham ; S/I ; 100407
dc.language.isoen
dc.nota.accesoContenido parcial
dc.publisherIEEE
dc.relation.ispartofInternational Conference on High-Power Particle Beams (15° : 2004)
dc.rightsacceso restringido
dc.subjectPower transmission lines
dc.subjectMirrors
dc.titleLaser initiated hollow gas-embedded Z-pinches_ES
dc.typecomunicación de congreso
sipa.codpersvinculados98761
sipa.codpersvinculados50868
sipa.codpersvinculados14943
sipa.codpersvinculados92840
sipa.codpersvinculados99732
sipa.codpersvinculados100503
sipa.codpersvinculados100407
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