| dc.contributor | Universidade Estadual Paulista (UNESP) | |
| dc.creator | Kayama, Milton Eiji | |
| dc.creator | Clemente, Roberto Antonio | |
| dc.creator | Honda, Roberto Yzumi | |
| dc.creator | Dobrowolsky, Marcelo Schubert | |
| dc.date | 2014-05-20T13:27:44Z | |
| dc.date | 2016-10-25T16:47:38Z | |
| dc.date | 2014-05-20T13:27:44Z | |
| dc.date | 2016-10-25T16:47:38Z | |
| dc.date | 2009-11-01 | |
| dc.date.accessioned | 2017-04-05T20:09:23Z | |
| dc.date.available | 2017-04-05T20:09:23Z | |
| dc.identifier | IEEE Transactions on Plasma Science. Piscataway: IEEE-Inst Electrical Electronics Engineers Inc, v. 37, n. 11, p. 2186-2190, 2009. | |
| dc.identifier | 0093-3813 | |
| dc.identifier | http://hdl.handle.net/11449/9184 | |
| dc.identifier | http://acervodigital.unesp.br/handle/11449/9184 | |
| dc.identifier | 10.1109/TPS.2009.2031868 | |
| dc.identifier | WOS:000271592300010 | |
| dc.identifier | http://dx.doi.org/10.1109/TPS.2009.2031868 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/857369 | |
| dc.description | Plasma dynamic and confinement characteristics were investigated with magnetic probes in a theta pinch operating with oscillatory current waveform and hydrogen gas at pressure between 45 and 150 mtorr. Current-sheath implosion was evident after the third half cycle until sixth half cycle when the external current has practically decayed. Each cycle starts with a trapped reversed magnetic field residual from the previous half cycle. Probe-signal fluctuations due to radial hydromagnetic oscillations were also observed. A modified snowplow model including an initial bias field and a flux-loss term gives a reasonable description of the experimental results for plasma radial dynamic and internal trapped field. Typical equilibrium-density profiles are of a hollow type with maximum density around one-third of the discharge-tube radius. Estimations from these profiles show small variation of temperature and density among half cycles in discharges at low pressure. At high-pressure regime, the temperature strongly drops in subsequent half cycles, while the density increases. | |
| dc.description | Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) | |
| dc.description | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
| dc.language | eng | |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | |
| dc.relation | IEEE Transactions on Plasma Science | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | Magnetic-field measurement | |
| dc.subject | modeling | |
| dc.subject | plasma generation | |
| dc.subject | plasma pinch | |
| dc.title | Radial Plasma Dynamic in Sequential Pinches | |
| dc.type | Otro | |
