Author: R. V. BudnyPublisher:
ISBN:
Category :
Languages : en
Pages : 16
Book Description
Evolution of TFTR Scrape-off Plasmas with Neutral Beam Injection
Author: R. V. BudnyEnergy Research Abstracts
Author: Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 1032
Book Description
Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
INIS Atomindex
Author: Calculations of TFTR Neutral Beam Injection
Author: Douglass Edmund PostPhysics Briefs
Author: Proceedings
Author: Fusion-neutron Production in the TFTR with Deuterium Neutral Beam Injection
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
We report measurements of the fusion reaction rate in the Tokamak Fusion Test Reactor (TFTR) covering a wide range of plasma conditions and injected neutral beam powers up to 6.3 MW. The fusion-neutron production rate in beam-injected plasmas decreases slightly with increasing plasma density n/sub e/, even though the energy confinement parameter n/sub e/tau/sub E/ generally increases with density. The measurements indicate and Fokker-Planck simulations show that with increasing density the source of fusion neutrons evolves from mainly beam-beam and beam-target reactions at very low n/sub e/ to a combination of beam-target and thermonuclear reactions at high n/sub e/. At a given plasma current, the reduction in neutron source strength at higher n/sub e/ is due to both a decrease in electron temperature and in beam-beam reaction rate. The Fokker-Planck simulations also show that at low n/sub e/, plasma rotation can appreciably reduce the beam-target reaction rate for experiments with co-injection only. The variation of neutron source strength with plasma and beam parameters is as expected for beam-dominated regimes. However, the Fokker-Planck simulations systematically overestimate the measured source strength by a factor of 2 to 3; the source of this discrepancy has not yet been identified.
Fusion Energy Update
Author: Scientific and Technical Aerospace Reports
Author: Neutral Beam Heating of Detached Plasmas in TFTR.
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Detached plasmas on TFTR have been heated with neutral beam auxiliary power for the first time. At beam powers above 2 MW the detached plasmas in TFTR expand and reattach to the limiters. Deuterium and/or impurity gas puffing can be used to maintain plasmas in the detached state at powers of over 5 MW. Transient events were observed in a number of these plasmas, including a confinement-related delay in evolution of the edge emissivity and some phenomena which appear similar to those seen in the H-mode. 16 refs., 5 figs.