Experimental observation in a high current capillary discharge

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dc.contributor.authorWyndham, Edmund
dc.contributor.authorChuaqui, Hernán
dc.contributor.authorFavre Domínguez, Mario
dc.contributor.authorMitchell, Ian H.
dc.contributor.authorAliaga R., Raúl
dc.contributor.authorChoi, Peter
dc.date.accessioned2022-05-11T20:05:41Z
dc.date.available2022-05-11T20:05:41Z
dc.date.issued2002
dc.description.abstractExperimental observations of the soft X-ray emission from a 5 mm diameter, 60 mm length capillary discharge in an initial vacuum show the effectiveness of transient hollow cathode mechanisms in establishing the initial plasma conditions for a 120 kA Z-pinch. Hollow cathode geometry is used. A laser spark behind the cathode orifice initiates an axial electron beam when an external bias provides a current-limited preionizing current in the capillary. These beams intensify during the first few ns of the main discharge. The Z-pinch dynamics are measured using time-resolved soft X-ray spectroscopy and filtered pinhole photography. These are found to vary according to the rate of rise of the current, 1.5 and 3.0 × 1012 A/s, the polarity and level of the prionizing current. A stable pinch is formed with a preionizing current of ∼50A as an e-beam from the hollow cathode and with the higher value of di/dt. With higher values of preionizing current the e-beams show diode rather than hollow cathode origin and the stability of the following Z-pinch deteriorates notably. The pinched plasma is predominantly of wall material at ∼100 eV.
dc.fuente.origenIEEE
dc.identifier.doi10.1063/1.1531324
dc.identifier.isbn978-0735401075
dc.identifier.urihttps://doi.org/10.1063/1.1531324
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=6219555
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/63746
dc.information.autorucInstituto de física ; Wyndham, Edmund ; S/I ; 100407
dc.information.autorucInstituto de física ; Chuaqui, Hernán, 1943- ; S/I ; 98761
dc.information.autorucInstituto de física ; Favre Domínguez, Mario ; S/I ; 53560
dc.information.autorucInstituto de física ; Mitchell, Ian H. ; S/I ; 100503
dc.information.autorucInstituto de física ; Aliaga R., Raúl ; S/I ; 50868
dc.issue.numero1
dc.language.isoen
dc.nota.accesoContenido parcial
dc.publisherIEEE
dc.relation.ispartofInternational Conference on High-Power Particle Beams (14° : 2002)
dc.rightsacceso restringido
dc.subjectArtificial intelligence
dc.subjectDiscrete wavelet transforms
dc.titleExperimental observation in a high current capillary dischargees_ES
dc.typecomunicación de congreso
dc.volumen651
sipa.codpersvinculados100407
sipa.codpersvinculados98761
sipa.codpersvinculados53560
sipa.codpersvinculados100503
sipa.codpersvinculados50868
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