Ionization of xenon to the nickel-like stage and beyond in micro-capillary plasma columns heated by ultrafast current pulses

G. Avaria, M. Grisham, J. Li, F. G. Tomasel, V. N. Shlyapstsev, M. Busquet, M. Woolston, J. J. Rocca

Resultado de la investigación: Contribución a los tipos de informe/libroContribución a la conferenciarevisión exhaustiva

Resumen

Homogeneous plasma columns with ionization levels typical of MA discharges were created by rapidly heating gas-filled 520 μm diameter channels with ns rise-time current pulses of unusually low amplitude, 40 kA. These conditions allow the generation of high aspect ratio (eg.>300:1) plasma columns with very high degrees of ionization (e.g. Ni-like Xenon) of interest for soft x-ray lasers below λ =10 nm. Spectra and simulations of plasmas generated in 520 μm diameter alumina capillaries driven by 35–40 kA current pulses with 4 ns rise time were obtained for discharges in Xenon and Neon discharges. The first shows the presence of lines corresponding to ionization stages up to Fe-like Xe. The latter show that Al impurities from the walls are ionized to the H-like and He-like stages. He-like Al spectra containing the resonance line significantly broaden by opacity, the intercombination line, and Li-like satellites are analyzed. For Xenon discharges, the spectral lines from the Ni-like transitions the 3d94d (3/2, 3/2)J=0 to the 3d94p(5/2, 3/2)J=1 and to 3d94p(3/2, 1/2)J=1 are observed.

Idioma originalInglés
Título de la publicación alojadaX-Ray Lasers 2014 - Proceedings of the 14th International Conference on X-Ray Lasers
EditoresJorge Rocca, Carmen Menoni, Mario Marconi
EditorialSpringer Science and Business Media, LLC
Páginas147-153
Número de páginas7
ISBN (versión impresa)9783319195209
DOI
EstadoPublicada - 2016
Publicado de forma externa
Evento14th International Conference on X-Ray Lasers, 2014 - Fort Collins, Estados Unidos
Duración: 26 may 201430 may 2014

Serie de la publicación

NombreSpringer Proceedings in Physics
Volumen169
ISSN (versión impresa)0930-8989
ISSN (versión digital)1867-4941

Conferencia

Conferencia14th International Conference on X-Ray Lasers, 2014
País/TerritorioEstados Unidos
CiudadFort Collins
Período26/05/1430/05/14

Áreas temáticas de ASJC Scopus

  • Física y astronomía (todo)

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