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Negative ion sources for neutral beam systems [PDF]
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, 1983 Neutral beams to heat the plasmas of controlled fusion experiments are generated by neutralizing the charge of positive ions after they have been focused and accelerated. The efficiency of this system decreases with ion velocity and for D+ the system is practical only at ion energies of less than about 150 keV,which is less than the energies expected ...
Ehlers K W
exaly +4 more sources
Conceptual design of the beam source for the DEMO Neutral Beam Injectors
New Journal of Physics, 2016 DEMO (DEMOnstration Fusion Power Plant) is a proposed nuclear fusion power plant that is intended to follow the ITER experimental reactor. The main goal of DEMO will be to demonstrate the possibility to produce electric energy from the fusion reaction ...
P Sonato +6 more
doaj +3 more sources
RAMI evaluation of the beam source for the DEMO neutral beam injectors [PDF]
Fusion Engineering and Design, 2020 DEMO is a first-of-a-kind DEMOnstration Fusion Power Plant [1] and is intended to follow the ITER experimental reactor. The main goal of DEMO will be to demonstrate the possibility to produce electric energy for the grid from the fusion reaction early in the second half of the century.
Agostinetti P +5 more
openaire +7 more sources
Neutral Beams for Neutron Generation in Fusion Neutron Sources
Atoms, 2022 Neutral beam injection is supposed to be the main source of high-energy particles, driving non-inductive current and generating primary neutrons in fusion neutron sources design based on tokamaks.
Eugenia Dlougach +2 more
doaj +1 more source
Operation of Large RF Driven Negative Ion Sources for Fusion at Pressures below 0.3 Pa
Plasma, 2021 The large (size: 1 m × 2 m) radio frequency (RF) driven negative ion sources for the neutral beam heating (NBI) systems of the future fusion experiment ITER will be operated at a low filling pressure of 0.3 Pa, in hydrogen or in deuterium.
Dirk Wünderlich +4 more
doaj +1 more source
Single-Source, Collinear Merged-Beam Experiment for the Study of Reactive Neutral–Neutral Collisions [PDF]
The Journal of Physical Chemistry A, 2020 30 pages, 9 ...
Katrin Dulitz +2 more
openaire +4 more sources
Characteristics of the pressure profile in the accelerator on the RF negative ion source at ASIPP
Nanotechnology and Precision Engineering, 2023 Neutral beam injection (NBI) systems based on negative hydrogen ion sources—rather than the positive ion sources that have typically been used to date—will be used in the future magnetically confined nuclear fusion experiments to heat the plasma.
Wu Mingshan +4 more
doaj +1 more source
Negative Hydrogen Ion Sources for Fusion: From Plasma Generation to Beam Properties
Frontiers in Physics, 2021 The neutral beam injection systems for the international fusion experiment ITER used for heating, current drive, and diagnostic purposes are based on RF-driven negative hydrogen ion sources with a source area of roughly 0.9 m × 1.9 m. The sources operate
U. Fantz +4 more
doaj +1 more source
Design and Operation of an Intense Neutral Beam Source
Journal of Vacuum Science and Technology, 1973 We describe a neutral beam source capable of producing pulsed deuterium beams of up to 15 A equivalent current at 20 keV for heating and sustaining fusion plasmas. It consists of a large-area plasma source, multiple-aperture accel-decel extractor, and closely coupled charge-exchange cell.
Ehlers, K.W. +6 more
openaire +2 more sources
The Influence of Fast Particles on Plasma Rotation in the TUMAN-3M Tokamak
Atoms, 2022 In most present-day tokamaks, the majority of the heating power comes from sources such as neutral-beam injection (NBI) and other types of auxiliary heating which allow for the transfer of energy to the plasma by a small population of externally ...
Alexander Yashin +5 more
doaj +1 more source