Overview on electrical issues faced during the SPIDER experimental campaigns
Abstract
SPIDER is the full-scale prototype of the ion source of the ITER Heating Neutral Beam Injector, where negative ions of Hydrogen or Deuterium are produced by a RF generated plasma and accelerated with a set of grids up to ~100 keV. The Power Supply System is composed of high voltage dc power supplies capable of handling frequent grid breakdowns, high current dc generators for the magnetic filter field and RF generators for the plasma generation. During the first 3 years of SPIDER operation different electrical issues were discovered, understood and addressed thanks to deep analyses of the experimental results supported by modelling activities. The paper gives an overview on the observed phenomena and relevant analyses to understand them, on the effectiveness of the short-term modifications provided to SPIDER to face the encountered issues and on the design principle of long-term solutions to be introduced during the currently ongoing long shutdown.
Keywords
Cite
@article{arxiv.2304.02294,
title = {Overview on electrical issues faced during the SPIDER experimental campaigns},
author = {Alberto Maistrello and Matteo Agostini and Marco Bigi and Matteo Brombin and Mattia Dan and Riccardo Casagrande and Marco De Nardi and Alberto Ferro and Elena Gaio and Palak Jain and Francesco Lunardon and Nicolò Marconato and Diego Marcuzzi and Mauro Recchia and Tommaso Patton and Mauro Pavei and Francesco Santoro and Vanni Toigo and Loris Zanotto and Marco Barbisan and Lucio Baseggio and Marco Bernardi and Giovanni Berton and Marco Boldrin and Samuele Dal Bello and Daniele Fasolo and Luca Franchin and Raffaele Ghiraldelli and Luca Grando and Ruggero Milazzo and Antonio Pimazzoni and Andrea Rigoni and Emanuele Sartori and Gianluigi Serianni and Alastair Shepherd and Margherita Ugoletti and Barbara Zaniol and Daniele Zella and Enrico Zerbetto and Hans Decamps and Chandramouli Rotti and Pierluigi Veltri},
journal= {arXiv preprint arXiv:2304.02294},
year = {2023}
}
Comments
8 pages, 12 figures. Presented at SOFT 2022