Theory for a direct magnetic-field measurement of microturbulence enhanced electron collisionality

A theoretical framework is established for the description of anchored field-line distortion by a flowing resistive magnetofluid. The Hall effect is included and significantly influences field-line deformation in two dimensions when the electron magnetization parameter, ωce/νe approx-gt 1. Moreover, the formalism described herein provides for a direct and local magnetic-field determination of the effective electron collisionality, which may then be gauged against microturbulence descriptions of enhanced transport. copyright 1995 American Institute of Physics