NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
force-free electromagnetic pulses in a laboratory plasmaA short, intense current pulse is drawn from an electrode immersed in a magnetized afterglow plasma. The induced magnetic field B(r,t) assumes the shape of a helical double vortex which propagates along B(0) through the uniform plasma as a whistler mode. The observations support a prediction of force-free (J x B + neE = 0) electromagnetic fields and solitary waves. Energy and helicity are approximately conserved.
Document ID
19910025995
Document Type
Reprint (Version printed in journal)
Authors
Stenzel, R. L.
(California Univ. Los Angeles, CA, United States)
Urrutia, J. M.
(California, University Los Angeles, United States)
Date Acquired
August 14, 2013
Publication Date
October 15, 1990
Publication Information
Publication: Physical Review Letters
Volume: 65
ISSN: 0031-9007
Subject Category
PLASMA PHYSICS
Funding Number(s)
CONTRACT_GRANT: NSF ATM-87-02793
CONTRACT_GRANT: NAGW-1570
CONTRACT_GRANT: NSF PHY-87-13829
Distribution Limits
Public
Copyright
Other