Laser-induced photodetachment diagnostic for interrogating pulsed ECR-driven plasmas: Application to H- and D- negative ions
Résumé
Discharges sustained in the pulsed mode of operation are of great interest on a fundamental level as they may unveil important information on the plasma kinetics. The present work is devoted to an experimental setup tailored to study time-resolved processes relative to negative ion formation in ECR-driven plasmas. It refers to a laser-induced electron photo-detachment system synchronized with H 2 and D 2 ECR-plasmas, sustained by 2.45 GHz bursts in the kHz range. The system is combined with electrostatic probe time-resolved measurements and information is obtained both on the formation path and the yield enhancement of H − and D − negative ions.
Domaines
Plasmas
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