Overview
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Read the articleAUTHORS
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Aurélien HOUARD
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Yves-Bernard ANDRÉ
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André MYSYROWICZ
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Michel PELLET
INTRODUCTION
At a time when high-speed trains are booming, electrical collection by means of a pantograph rubbing against a catenary remains one of the Achilles' heels of their high-speed operation. We have tested an innovative idea that could eventually provide a solution to this problem. The idea is to capture the current without mechanical contact. The catenary-pantograph link would be made via a conductive plasma created by a laser emitting ultra-short, intense laser pulses. An initial series of experiments at the SNCF test center in Vitry has produced promising results.
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High-current electrical discharge induced in air by laser filamentation
Alternative to capturing high currents by mechanical contact
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