Experimental investigations of hotspots in a low energy plasma focus operating in hydrogen-argon mixtures

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dc.contributor.authorFavre Domínguez, Mario
dc.contributor.authorSilva, P.
dc.contributor.authorChoi, P.
dc.contributor.authorChuaqui, Hernán
dc.contributor.authorDumitrescu-Zoita, C.
dc.contributor.authorWyndham, Edmund
dc.date.accessioned2022-05-18T14:04:55Z
dc.date.available2022-05-18T14:04:55Z
dc.date.issued1998
dc.description.abstractWe present experimental results on the investigation of hotspot formation in PFP-I, a small 3.8 kJ plasma focus device operating in hydrogen-argon mixtures, at pressures from below 0.2 torr upward. A combination of multipinhole and slit-wire X-ray photography is used to measure the characteristic size and temperature of the hotspots, over a range of pressure and gas mixing ratios. Filtered p-i-n diodes and a beam-target detector are used to investigate the time evolution of the hotspots. Typical size for the hottest emitting region, at temperatures between 200 and 400 eV, is found to be around 150 /spl mu/m, with a typical duration of the high temperature phase of the order of 10 ns. In general, the temperature in the final phase of the time evolution of the hotspots reaches values which are nearly twice those of the plasma column where they are formed. Characteristic size of the hotspots is about half of that of the initial plasma column.
dc.fuente.origenIEEE
dc.identifier.doi10.1109/27.725145
dc.identifier.eissn1939-9375
dc.identifier.issn0093-3813
dc.identifier.urihttps://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=725145
dc.identifier.urihttps://doi.org/10.1109/27.725145
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/64141
dc.information.autorucInstituto de física ; Favre Domínguez, Mario ; S/I ; 99732
dc.information.autorucInstituto de física ; Chuaqui, Hernán, 1943- ; S/I ; 98761
dc.information.autorucInstituto de física ; Wyndham, Edmund. ; S/I ; 100407
dc.issue.numero4
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final1161
dc.pagina.inicio1154
dc.publisherIEEE
dc.revistaIEEE Transactions on Plasma Science
dc.rightsacceso restringido
dc.subjectPlasma temperature
dc.subjectPlasma properties
dc.subjectPlasma measurements
dc.subjectPlasma devices
dc.subjectPlasma x-ray sources
dc.subjectPhotography
dc.subjectPressure measurement
dc.subjectSize measurement
dc.subjectTemperature distribution
dc.subjectP-i-n diodes
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.subject.otherPlasma - Dianósticoes_ES
dc.subject.otherEfecto Pinch (Física)es_ES
dc.subject.otherPlasma Diapositivoses_ES
dc.titleExperimental investigations of hotspots in a low energy plasma focus operating in hydrogen-argon mixtureses_ES
dc.typeartículo
dc.volumen26
sipa.codpersvinculados99732
sipa.codpersvinculados98761
sipa.codpersvinculados100407
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