J. Phys. IV France
Volume 133, June 2006
Page(s) 537 - 541
Publié en ligne 16 juin 2006
Inertial Fusion Sciences and Applications 2005
J.-C. Gauthier, et al.
J. Phys. IV France 133 (2006) 537-541

DOI: 10.1051/jp4:2006133111

Diagnosing the dynamics of fast electron transport with self induced magnetic fields

A.S. Sandhu1, 0, S. Kahaly1, G.R. Kumar1, S. Sengupta1, A. Das1 and  P.K. Kaw2

1  Tata Institute of Fundamental Research, 1 Homi Bhabha Road, Mumbai 400005, India
2  Institute for Plasma Research, Bhat, Gandhinagar 382428, India

We offer a new method to study the transport of fast electrons in dense, hot media. The technique relies on temporal profiling of the laser induced magnetic fields and offers a unique capability to map the hot electron currents and their neutralization (or lack of it) by the return currents in the plasma. We report direct quantitative measurements of strong electric inhibition in insulators and turbulence induced anomalous stopping of hot electrons in conductors.

© EDP Sciences 2006