B. Zaniol
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View article: RFX-mod2 diagnostic capability enhancements for the exploration of multi-magnetic-configurations
RFX-mod2 diagnostic capability enhancements for the exploration of multi-magnetic-configurations Open
The RFX-mod2 device, the upgraded version of the previous RFX-mod with a modified magnetic boundary, is presently under realization and will start to be operated in 2025. Significant upgrades of the diagnostic capabilities have been propos…
View article: RFX-mod2 as a flexible device for reversed-field-pinch and low-field tokamak research
RFX-mod2 as a flexible device for reversed-field-pinch and low-field tokamak research Open
The RFX-mod2 installation is planned to be completed by 2024 and the start of operations is expected in 2025. The high flexibility of the machine (already tested in the previous RFX-mod experiment) allows operation in Reversed Field Pinch …
View article: Optimizing the ITER NBI ion source by dedicated RF driver test stand
Optimizing the ITER NBI ion source by dedicated RF driver test stand Open
The experimental fusion reactor ITER will feature two (or three) heating neutral beam injectors (NBI) capable of delivering 33(or 50) MW of power into the plasma. A NBI consists of a plasma source for production of negative ions (extracted…
View article: Correlation of source parameters and beam properties in the early operation of the full size ITER negative ion beam source
Correlation of source parameters and beam properties in the early operation of the full size ITER negative ion beam source Open
One of the requirements of Heating and current drive Neutral Beam injectors for ITER is a beam homogeneity greater than 90%, to achieve an optimal beam transmission while keeping the heat load consistently low on the acceleration electrode…
View article: Characterization of plasmas in negative ion sources using a Cs-H Collisional Radiative model
Characterization of plasmas in negative ion sources using a Cs-H Collisional Radiative model Open
SPIDER, hosted at the Neutral Beam Test Facility (NBTF) in Padova, Italy, is the full scale prototype for the ITER Heating Neutral Beam (HNB) source. Another smaller compact RF ion source, NIO1, hosted by Consorzio RFX, was built to study …
View article: Continuous pulse advances in the negative ion source NIO1
Continuous pulse advances in the negative ion source NIO1 Open
Consorzio RFX and INFN-LNL have designed, built and operated the compact radiofrequency negative ion source NIO1 (Negative Ion Optimization phase 1) with the aim of studying the production and acceleration of H - ions. In particular, NIO1 …
View article: Highlights of recent SPIDER results and improvements
Highlights of recent SPIDER results and improvements Open
Three years of experiments on SPIDER allowed characterization of the main features of the source plasma and of the negative ion beam, in the original design configuration. For the large dimensions of the source chamber, and of the extracti…
View article: Use of electrical measurements for non-invasive estimation of plasma electron density in the inductively coupled SPIDER ion source
Use of electrical measurements for non-invasive estimation of plasma electron density in the inductively coupled SPIDER ion source Open
SPIDER (source for the production of ions of deuterium extracted from RF plasma) is the full-scale prototype of the ITER neutral beam injector ion source. The plasma heating takes place inside eight drivers via inductive coupling, through …
View article: 2D electromagnetic simulations of RF heating via inductive coupling in the SPIDER device
2D electromagnetic simulations of RF heating via inductive coupling in the SPIDER device Open
SPIDER is the prototype ion source of MITICA, the full-size neutral beam heating system conceived for the ITER tokamak. It includes eight drivers to heat and sustain the inductively coupled plasma (ICP). Owing to their near cylindrical sym…
View article: Continuous pulse advances in the negative ion source NIO1
Continuous pulse advances in the negative ion source NIO1 Open
Consorzio RFX and INFN-LNL have designed, built and operated the compact radiofrequency negative ion source NIO1 (Negative Ion Optimization phase 1) with the aim of studying the production and acceleration of H- ions. In particular, NIO1 w…
View article: Physics of tearing mode rotation and slow-down in the RFX-mod tokamak
Physics of tearing mode rotation and slow-down in the RFX-mod tokamak Open
We present a study of the fast, spontaneous rotation regime of tearing modes (TM) in the RFX-mod circular tokamak discharges. Integrated analyses of magnetic, flow and kinetic measurements, are discussed. This analysis of rotation frequenc…
View article: Spatially resolved diagnostics for optimization of large ion beam sources
Spatially resolved diagnostics for optimization of large ion beam sources Open
Giant negative ion sources for neutral beam injectors deliver huge negative ion currents, thanks to their multi-beamlet configuration. As the single-beamlet optics defines the transmission losses along the beamline, the extraction of a sim…
View article: Development of a Collisional Radiative Model for Hydrogen-Cesium Plasmas and Its Application to SPIDER
Development of a Collisional Radiative Model for Hydrogen-Cesium Plasmas and Its Application to SPIDER Open
SPIDER is the full scale prototype for the ITER Heating Neutral Beam (HNB) source. The production of negative ions in the source mostly relies on the conversion of H/D atoms and positive ions on a 1.6 m x 0.8 m converter surface, which is …
View article: Study of Negative Ion Beamlets Produced in SPIDER by Beam Emission Spectroscopy
Study of Negative Ion Beamlets Produced in SPIDER by Beam Emission Spectroscopy Open
Among the beam diagnostics routinely employed in source for production of ion of deuterium (SPIDER), beam emission spectroscopy (BES) provides valuable information for beam characterization, thus driving source optimization methods. In par…
View article: First operations with caesium of the negative ion source SPIDER
First operations with caesium of the negative ion source SPIDER Open
The negative-ion based neutral beam injector for heating and current drive of the ITER plasma (ITER HNB) is under development, at present focusing on the optimization of the full-scale plasma source in the SPIDER test stand. The production…
View article: Dynamics of ultralow-q plasmas in the RFX-mod device
Dynamics of ultralow-q plasmas in the RFX-mod device Open
The results are presented of an experimental activity performed in the RFX-mod device aimed at characterizing plasma dynamics in the so-called Ultralow-q (ULq) magnetic configuration, which corresponds to edge safety factor values below 1.…
View article: First results from beam emission spectroscopy in SPIDER negative ion source
First results from beam emission spectroscopy in SPIDER negative ion source Open
The SPIDER experiment, part of the neutral beam test facility at Consorzio RFX (Padua, Italy), is the prototype of the negative ion source for the ITER neutral beam injectors; the source is coupled to a 100 kV three-grid acceleration syste…
View article: Turbulent filament properties in L and H-mode regime in the RFX-mod operating as a tokamak
Turbulent filament properties in L and H-mode regime in the RFX-mod operating as a tokamak Open
The dynamics of turbulent filaments in L and ELM-free H-mode in the RFX-mod device operating as a tokamak is discussed in the present work. L-H transition and sustained H-mode have been achieved in the RFX-mod with the aid of an external e…
View article: First operation in SPIDER and the path to complete MITICA
First operation in SPIDER and the path to complete MITICA Open
The requirements of ITER neutral beam injectors (1 MeV, 40 A negative deuterium ion current for 1 h) have never been simultaneously attained; therefore, a dedicated Neutral Beam Test Facility (NBTF) was set up at Consorzio RFX (Padova, Ita…
View article: Progress in the ITER neutral beam test facility
Progress in the ITER neutral beam test facility Open
Heating neutral beam (HNB) injectors, necessary to achieve burning conditions and to control plasma instabilities in ITER, are characterized by such demanding parameters that a neutral beam test facility (NBTF) dedicated to their developme…
View article: Progress in the ITER neutral beam test facility
Progress in the ITER neutral beam test facility Open
Heating neutral beam (HNB) injectors, necessary to achieve burning conditions and to control plasma instabilities in ITER, are characterized by such demanding parameters that a neutral beam test facility (NBTF) dedicated to their developme…
View article: On the Electrical and Optical Features of the Plasma Coagulation Controller Low Temperature Atmospheric Plasma Jet
On the Electrical and Optical Features of the Plasma Coagulation Controller Low Temperature Atmospheric Plasma Jet Open
We report on the electrical and optical characterization of the Plasma Coagulation Controller (PCC) device, a low temperature atmospheric plasma source for biomedical applications. This device, designed for the study of plasma-induced bloo…
View article: Issue Information: Plasma Process. Polym. 11/2018
Issue Information: Plasma Process. Polym. 11/2018 Open
Front Cover: The development of multifunctional nanocomposite materials is of great interest for various biomedical applications.A popular approach to produce tailored nanocomposites is to incorporate functional nanoparticles into hydrogel…
View article: Removal of persistent organic pollutants from water using a newly developed atmospheric plasma reactor
Removal of persistent organic pollutants from water using a newly developed atmospheric plasma reactor Open
A new bench‐top reactor employing a streamer discharge in air was developed and tested for potential use in an advanced oxidation stage in water treatment processes. The complex heterogeneous system and the ensuing chemical processes were …