Transformation of the magnetic energy of a rotating relativistic beam into plasma energy
- 1 April 1975
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 26 (7), 368-370
- https://doi.org/10.1063/1.88182
Abstract
An intense rotating relativistic electron beam of energy 500 kV and current 40−50 kA is injected into neutral gas of pressure 200−700 mTorr, in the presence of an external magnetic field B0≃800 G. It is observed that the ratio of the magnetic field on axis ΔBz(r=0) to B0 is ΔBz(r=0)/B0≃2.2. The average magnetic energy density is about 2.5×1016 eV cm−3. Spectroscopic results show that most of this energy is transferred to the plasma through Joule heating.Keywords
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