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1. (WO2001031672) METHOD FOR CONTROLLING A STRUCTURE COMPRISING A SOURCE OF FIELD EMITTING ELECTRONS

Pub. No.:    WO/2001/031672    International Application No.:    PCT/FR2000/003005
Publication Date: Fri May 04 01:59:59 CEST 2001 International Filing Date: Sat Oct 28 01:59:59 CEST 2000
IPC: H01J 9/50
Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE
LEVY, François
SARRASIN, Denis
Inventors: LEVY, François
SARRASIN, Denis
Title: METHOD FOR CONTROLLING A STRUCTURE COMPRISING A SOURCE OF FIELD EMITTING ELECTRONS
Abstract:
The invention concerns a method for controlling a structure comprising field emitting elements. The structure comprises a cathode (1) provided with field emitting elements, an anode (2), an extraction grid (7) and a supplementary grid (14). The method comprises at least a step which consists in emitting electrons by the field emitting elements, towards the anode, and at least a regeneration phase wherein the electrons derived from the elements are not transmitted to the anode. The regeneration phase is carried out by applying on the supplementary grid (14) a potential (VB) blocking the electrons which return to the cathode. The invention is applicable to flat image display screens and to any device comprising a field emitting cathode (X-ray tube, and the like).