Results 11 to 20 of about 89,460 (299)

Fast forward modeling of neutral beam injection and halo formation including full Balmer-α emission prediction at W7-X

open access: yesJournal of Instrumentation, 2023
A full collisional-radiative (CR) neutral beam injection model based on Gaussian pencil (Gausscil) beams and a diffusive CR neutral halo model are presented. The halo is a neutral cloud around the neutral beam forming due to multiple charge exchange (CX)
A. Zocco   +15 more
semanticscholar   +1 more source

Design of ion beam source for a sample tokamak neutral beam injection heating system [PDF]

open access: yesمجله علوم و فنون هسته‌ای, 2020
In this paper, the design and simulation of ion source based on a helicon plasma generator and its corresponding extraction system for design of the neutral beam injection heating system of a sample tokamak like Damavand tokamak using COMSOL software ...
S. Fazelpour, A. Chakhmachi, H. Sadeghi
doaj   +1 more source

Neutral beam injection for fusion reactors: technological constraints versus functional requirements

open access: yesNuclear Fusion, 2021
In this paper we look at the technological constraints of neutral beam injection (NBI) systems and compare them with the functional requirements that NBI has in the various envisaged plasma scenarios for tokamak fusion reactors of the DEMO and fusion ...
C. Hopf   +3 more
semanticscholar   +1 more source

Neutral-beam injection calculations for torsatrons [PDF]

open access: yesNuclear Fusion, 1980
A numerical investigation of the effectiveness of neutral-beam heating in two torsatron-type devices has been undertaken. A modified version of a well-known deposition and orbit code was used for this purpose. It was found that, for beam currents within the applicable range of the model, neutral beams can efficiently heat either a 'classical' torsatron
Anderson, D.   +3 more
openaire   +2 more sources

Optimization-oriented modelling of neutral beam injection for EU pulsed DEMO

open access: yesPlasma Physics and Controlled Fusion, 2021
Neutral beam injection (NBI) is one of the auxiliary power systems considered for the EU DEMO pulsed plasma (‘DEMO1’). In this paper, we discuss the characteristics of optimized NBI in terms of the DEMO1 requirements, relating physics and engineering ...
P. Vincenzi   +7 more
semanticscholar   +1 more source

Neutral Beams for Neutron Generation in Fusion Neutron Sources

open access: yesAtoms, 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

Neutral beam injection for DEMO alternative scenarios

open access: yes, 2021
Within the current EU pre-conceptual design activities, the reference demonstrative fusion power plant concept relies on ITER-like, pulsed H-mode plasmas (“DEMO1”). Simultaneously, alternative design options are being considered.
P. Vincenzi   +5 more
semanticscholar   +1 more source

Neutral Particle Beam Production and Injection [PDF]

open access: yes, 1983
Intense neutral beams are used to heat, fuel, adjust electric potentials, and diagnose fusion plasmas. They may be used to sustain currents in plasmas. We shall comment on some of the ways that atomic physics enters into the design, diagnosis, and application of neutral beam systems.
Post, D., Pyle, R.
openaire   +2 more sources

Gyro orbit simulations of neutral beam injection in Wendelstein 7-X

open access: yesNuclear Fusion, 2023
Simulations exploring neutral beam operation in Wendelstein 7-X (W7-X) at reduced magnetic field are performed using a newly implemented gyro orbit model in the BEAMS3D code.
Samuel A. Lazerson   +5 more
doaj   +1 more source

Ion cyclotron emission driven by deuterium neutral beam injection and core fusion reaction ions in EAST

open access: yesNuclear Fusion, 2020
Ion cyclotron emissions (ICE) driven by high energy ions in the Experimental Advanced Superconducting Tokamak (EAST) are reported. The classic edge emissions driven by energetic neutral beam injection (NBI) deuterium ions at low magnetic field side, near
Lunan Liu   +11 more
semanticscholar   +1 more source

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