Threshold for Thermal Ionization of an Aluminum Surface by Pulsed Megagauss Magnetic Field

Journal Article · Fri Jan 22 00:00:00 EST 2010 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.104.035001· OSTI ID:21386754

Awe, T J; Bauer, B S; Fuelling, S; Siemon, R E ^[1]

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1. University of Nevada, Reno, 5625 Fox Avenue, Reno, Nevada 89506 (United States)

The first measurement of the threshold for thermal ionization of the surface of thick metal by pulsed magnetic field (B) is reported. Thick aluminum - with depth greater than the magnetic skin layer - was pulsed with partial derivB/partial derivt from 30-80 MG/mus. Novel loads avoided nonthermal plasma (from electron avalanche, or energetic particles or photons from arcs). Thermal plasma forms from 6061-alloy aluminum when the surface magnetic field reaches 2.2 MG, in qualitative agreement with numerical simulation results by Garanin et al.[J. Appl. Mech. Tech. Phys. 46, 153 (2005)].

• OSTI ID: 21386754
• Journal Information: Physical Review Letters, Vol. 104, Issue 3; Other Information: DOI: 10.1103/PhysRevLett.104.035001; (c) 2010 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
ALUMINIUM
ALUMINIUM ALLOYS
AVALANCHE QUENCHING
COMPUTERIZED SIMULATION
ELECTRONS
HOT PLASMA
IONIZATION
LAYERS
MAGNETIC FIELDS
PHOTONS
SURFACES
ALLOYS
BOSONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
LEPTONS
MASSLESS PARTICLES
METALS
PLASMA
SIMULATION