Mode coupling between ICRF waves propagating outside the B- Delta B plane


Research output: Contribution to journalArticlepeer-review


The conductivity tensor is obtained directly from the perturbed Vlasov equation for a plasma in an inhomogeneous magnetic field. The conductivity tensor elements are obtained consistently to all orders in the "perpendicular wavenumbers" and to first order in the equilibrium magnetic field gradient. Conditions on the parallel wavenumber and the magnetic field gradient for which such a method is valid are given. The wave differential operator is obtained from the conductivity tensor using Maxwell's equations. The coupled differential equations are then truncated to second order to model the case of minority and second harmonic ion cyclotron heating.

The forms of the electromagnetic and kinetic power flows and the minority and majority cyclotron damping are obtained simply.

The differential equations are solved numerically as a linear combination of boundary value problems for the perturbing electric fields using standard NAG library routines, and the transmission, reflection and mode conversion are calculated for a range of k(y) and k(z) values.

On setting k(y) to zero, excellent agreement is found between the results obtained from our code and published results from codes by other authors.

Original languageEnglish
Pages (from-to)41-60
Number of pages20
JournalPlasma Physics and Controlled Fusion
Issue number1
Publication statusPublished - Jan 1991


Dive into the research topics of 'Mode coupling between ICRF waves propagating outside the B- Delta B plane'. Together they form a unique fingerprint.

Cite this