EMPLOYMENT OF PLASMA BEAT WAVES IN STOCHASTIC CURRENT DRIVE
We propose to utilize a high phase-velocity wave driven indirectly within the plasma via a nonlinear beat interaction of two high frequency laser pump waves. This wave can be advantageously combined with a lower-hybrid wave having a slower phase velocity to generate a stochastic band in phase space due to a nonlinear interaction of resonances which results in a raised plateau in the electron velocity distribution function, leading to the generation of a current in the plasma. The threshold for onset of stochasticity is evaluated for the relativistic motion of electrons in a two electrostatic wave system and the dynamics of the electrons described drive as compared to the one obtained in the accessibility domain is found. The dependency of this efficiency ratio on the parameters of the system is investigated.
Bibliographic Reference: WRITE TO CEA MENTIONING REPORT EUR-CEA-FC-1230 EN, 1984
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Record Number: 1989123048900 / Last updated on: 1987-01-01
Available languages: en