Accession Number:

ADA143966

Title:

Nonlocal Effects on the Convective Properties of the Electrostatic Current Driven Ion Cyclotron Instability.

Descriptive Note:

Memorandum rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC

Personal Author(s):

Report Date:

1984-07-27

Pagination or Media Count:

21.0

Abstract:

Nonlocal effects due to magnetic shear and finite current channel width on the convective characteristics of the current driven ion cyclotron instability have been investigated. When the magnetic shear length L sub s is smaller than the current channel width L sub c, the group velocity parallel to the external magnetic field at the origin V sub gz vanishes, and there is a reduction in the group velocity perpendicular to the external magnetic field V sub gy. For L sub c approx. 1100 L sub s the values of V sub gz and V sub gy as given by local theory are recovered. When L sub c or approx Rho sub i is the mean ion Larmor radius, both V sub gz and V sub gy change sign, indicating a reversal of the direction of propagation. Author

Subject Categories:

  • Particle Accelerators

Distribution Statement:

APPROVED FOR PUBLIC RELEASE