R. Piovan

TL;DR: In this paper, the evolution of a reversed-field-pinch plasma towards a self-organized single-helicity state suggests that instability problems, which have previously hindered the development of these devices, could now be overcome.

TL;DR: In this paper, the authors present a general overview of the test facility and of the status of development of the main components at this important stage of the overall development, focusing on the latest and most critical issues, regarding both physics and technology, describing the identified solutions.

TL;DR: Clean mode control (CMC) as mentioned in this paper was proposed to correct the aliasing of the sideband harmonics generated by the discrete saddle coils in real time, which leads to a smoother (i.e. more axisymmetric) boundary.

TL;DR: The present paper gives an account of the status of the procurements, of the timeline, and of the voltage holding tests and experiments for MITICA, the full-scale prototype of the entire injector, devoted to the issues related to the accelerator, including voltage holding at low gas pressure.

TL;DR: In this article, the full-scale NBI prototype with 1'MeV particle energy was tested and optimised at Consorzio RFX (Italy) to obtain beam uniformity, negative ion current density (for one hour) and beam optics.