Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Theory of Neutral Beam Injection Into a Tokamak
Author: Neutral Beam Injection Into a Tokamak
Author: Calculation of the Fast Ion Source Distribution from Neutral Beam Injection Into a Tokamak Plasma
Author: Daniel J. BeckettPublisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 52
Book Description
Neutral Beam Injection System for the Tokamak Fusion Test Reactor
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The Tokamak Fusion Test Reactor will be installed at the Princeton Plasma Physics Laboratory facility. This is a major step to reach the goal of fusion power using toroidal magnetic fields for plasma confinement. A major part of this test reactor will be four neutral beam injection systems. These systems will inject 20 MW of 120 kV neutral deuterium atoms into the plasma for 0.5 seconds. In order to achieve the required power input to the plasma, several systems are required within the neutral beam line. These are the source, neutralizer, ion deflection magnet, calorimeter and retraction system, ion dump, cryopumps and vacuum enclosure. All of these systems have constraints imposed which increase the complexity of their designs. Since all systems must operate in a tritium environment, remote handling capabilities must be incorporated into the design. An overview is presented of the Lawrence Livermore Laboratory/Lawrence Berkeley Laboratory Neutral Beam Injection System design. Specifications for the machine and a general description of the total system are presented.
Timing System for Neutral Beam Injection on the DIII-D Tokamak
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
Eight neutral beam (NB) long pulse sources mounted on four beamlines are in use on the D3-D tokamak, a magnetic confinement fusion experiment at General Atomics. The main purpose of NB injection is to heat the bulk plasma with high energy injected neutral particles which undergo ionizing collisions with plasma ions and electrons. NB injection is also used as a diagnostic tool for charge exchange recombination spectrometry to determine ion temperatures and rotation velocities and for neutral particle exchange spectrometry to determine spatial distributions of beam ions. This paper describes recent modifications to the D3-D central timing system hardware and software to allow more flexible and complex timing waveforms than previously available to control NB injection. In the past, for each plasma discharge, the start time and the pulse duration for each NB source could be set. The new NB timing system allows the experimental session leader to specify more than one pulse for each NB source to make efficient use of multiple physics experiments in a single discharge. Also, pulse trains with programmable duty cycles can be independently specified for each NB source to make NB injection a more useful diagnostic tool. Experimental results using features of the new NB timing system are presented. 5 refs., 3 figs.
Rotation and Impurity Transport in a Tokamak Plasma with Directed Neutral Beam Injection
Author: W. M. Stacey (Jr)The Effects of Neutral Beam Injection on Impurity Transport in Tokamaks
Author: Weston M. StaceyPublisher:
ISBN:
Category : Fusion reactors
Languages : en
Pages : 22
Book Description
Impurity Transport During Neutral Beam Injection in the ISX-B Tokamak
Author: Fusion-Reaction-Injected and Neutral-Beam-Injected Suprathermal Ions in the Tokamak
Author: D. L. JassbyRotation and Impurity Transport in a Tokamak Plasma with Directed Neutral Beam Injection
Author: Weston M. StaceyPublisher:
ISBN:
Category : Fusion reactors
Languages : en
Pages : 25
Book Description