Title :
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
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;
Conference_Titel :
Plasma Science - Abstracts, 2009. ICOPS 2009. IEEE International Conference on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2617-1
DOI :
10.1109/PLASMA.2009.5227653
