Results 11 to 20 of about 161,882 (329)

Interpretation of suprathermal emission at deuteron cyclotron harmonics from deuterium plasmas heated by neutral beam injection in the KSTAR tokamak [PDF]

open access: yesNuclear Fusion, 2019
Intense bursts of suprathermal radiation, with spectral peaks at frequencies corresponding to the deuteron cyclotron frequency in the outer midplane edge region, are often detected from deuterium plasmas in the KSTAR tokamak that are heated by tangential
B. Chapman   +6 more
semanticscholar   +3 more sources

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

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

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

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

SIMULATION OF NEUTRAL BEAM INJECTION IN POSITIVE AND NEGATIVE TRIANGULARITY TOKAMAKS

open access: yesAnales (Asociación Física Argentina), 2023
In this paper the dynamics of high energy charged particles in negative and positive triangularity tokamaks is studied through the simulation of a neutral beam injection on analytical MHD equilibria using the exact orbit code FOCUS.
F. Sheffield, R. Farengo
doaj   +1 more source

PLT neutral beam injection systems [PDF]

open access: yes, 1979
A brief description of the Princeton Large Torus (PLT) neutral beam injection system is given and its performance characteristics are outlined. A detailed operational procedure is included, as are some tips on troubleshooting. Proper operation of the source is shown to be a crucial factor in system performance.
Menon, M. M., Barber, G. C., Blue, C. W.
openaire   +2 more sources

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