Publication

Dynamical plasma response during driven magnetic reconnection

Ambrogio Fasoli
2003
Journal Articles

Abstract

Direct measurements of a collisionless current channel during driven magnetic reconnection are obtained for the first time on the Versatile Toroidal Facility. The size of the diffusion region is found to scale with the electron drift orbit width, independent of the ion mass and plasma density. Based on experimental observations, analytic expressions governing the dynamical evolution of the current profile and the formation of the electrostatic potential that develops in response to the externally imposed reconnection drive are established. This time response is closely linked to the presence of ion polarization currents.

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https://infoscience.epfl.ch/entities/publication/c94fdcbb-90aa-49f2-a760-d2a752503f9a

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Ambrogio Fasoli
2003
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/c94fdcbb-90aa-49f2-a760-d2a752503f9a

About this result

Related concepts (32)

Impulse response

In signal processing and control theory, the impulse response, or impulse response function (IRF), of a dynamic system is its output when presented with a brief input signal, called an impulse (δ(t)). More generally, an impulse response is the reaction of any dynamic system in response to some external change. In both cases, the impulse response describes the reaction of the system as a function of time (or possibly as a function of some other independent variable that parameterizes the dynamic behavior of the system).

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