Speaker
Mr
Riccardo Agnello
(Swiss Plasma Center)
Description
The Neutral Beam (NB) system for ITER will deliver an ion beam with energy of 1 MeV and current of 40 A. Only NB systems based on negative ions can attain the neutralization efficiency required for the NB system in ITER. Helicon plasmas are a promising candidate for the production of negative ions. The RAID (Resonant Antenna Ion Device) at the Swiss Plasma Center represents a crucial step in understanding helicon plasma physics and negative ions production through volume processes. In this talk the last advances on RAID will be presented including the preliminary measurements of $\mathrm{H^-}$ density by means of Cavity Ring-Down Spectroscopy and microwave interferometry measurements.
Authors
Prof.
Ivo Furno
(Swiss Plasma Center)
Dr
Marco Barbisan
(Consorzio RFX, Euratom-ENEA Association,)
Mr
Riccardo Agnello
(Swiss Plasma Center)
Dr
Roberto Pasqualotto
(Consorzio RFX)
Co-authors
Dr
Alan Howling
Dr
Gennady Pluyshev
(Swiss Plasma Center - EPFL)
Mr
Rémy Jaquier
(Swiss Plasma Center - EPFL)
