Thermal ionization of an aluminum surface by pulsed megagauss field

Author

Bauer, B.S. ; Awe, T.J. ; Angelova, M.A. ; Fuelling, S. ; Goodrich, T.S. ; Le Galloudec, B. ; Lindemuth, I.R. ; Siemon, R.E. ; Makhin, V. ; Atchison, W.L. ; Garanin, S.F.

Author_Institution

Univ. of Nevada, Reno, NV, USA

fYear

2009

fDate

1-5 June 2009

Firstpage

1

Lastpage

1

Abstract

The thermal ionization of the surface of thick metal, in response to a pulsed multi-megagauss magnetic field, is investigated experimentally and theoretically. Time-resolved imaging, pyrometry, spectroscopy, and laser shadowgraphy are used for characterization. Radiation-magnetohydrodynamic simulations are also used, which include the Eulerian MHRDR code and the Lagrangian RAVEN UP codes. An analytic calculation indicates ohmic heating that must produce plasma, which is consistent with numerical and experimental observations.

Keywords

aluminium; ionisation; plasma magnetohydrodynamics; plasma simulation; pyrometers; Au; Eulerian MHRDR code; Lagrangian RAVEN code; UP code; aluminum surface; laser shadowgraphy; pulsed megagauss field; pyrometry; radiation-magnetohydrodynamic simulations; thermal ionization; time-resolved imaging; Aluminum; Ionization; Laboratories; Magnetic field measurement; Magnetic fields; Plasma measurements; Plasma simulation; Plasma temperature; Predictive models; Thermal conductivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science - Abstracts, 2009. ICOPS 2009. IEEE International Conference on

Conference_Location

San Diego, CA

ISSN

0730-9244

Print_ISBN

978-1-4244-2617-1

Type

conf

DOI

10.1109/PLASMA.2009.5227653

Filename

5227653