scholarly journals Formation and acceleration of high-energy neutral beams for magnetic fusion

1981 ◽  
Author(s):  
H. S. Staten ◽  
J. H. Fink ◽  
P. Kortman
Keyword(s):  
High Energy ◽  
Magnetic Fusion ◽  
Neutral Beams

Interaction of high-energy neutral beams with crystals

1983 ◽  
Vol 69 (3-4) ◽  
pp. 247-251
Author(s):  
M. A. Kumakhov ◽  
F. F. Komarov
Keyword(s):  
High Energy ◽  
Neutral Beams

scholarly journals Energy composition of high-energy neutral beams on the COMPASS tokamak

Nukleonika ◽  
2016 ◽  
Vol 61 (4) ◽  
pp. 419-423
Author(s):  
Klara Mitosinkova ◽  
Jan Stöckel ◽  
Jozef Varju ◽  
Vladimir Weinzettl
Keyword(s):  
Plasma Heating ◽  
High Energy ◽  
Ion Source ◽  
Neutral Beam ◽  
Beam Power ◽  
Neutral Beams ◽  
Before And After ◽  
Copper Shield ◽  
Single Aperture ◽  
Energy Components

Abstract The COMPASS tokamak is equipped with two identical neutral beam injectors (NBI) for additional plasma heating. They provide a beam of deuterium atoms with a power of up to ~(2 × 300) kW. We show that the neutral beam is not monoenergetic but contains several energy components. An accurate knowledge of the neutral beam power in each individual energy component is essential for a detailed description of the beam- -plasma interaction and better understanding of the NBI heating processes in the COMPASS tokamak. This paper describes the determination of individual energy components in the neutral beam from intensities of the Doppler-shifted Dα lines, which are measured by a high-resolution spectrometer viewing the neutral beam-line at the exit of NBI. Furthermore, the divergence of beamlets escaping single aperture of the last accelerating grid is deduced from the width of the Doppler-shifted lines. Recently, one of the NBI systems was modified by the removal of the Faraday copper shield from the ion source. The comparison of the beam composition and the beamlet divergence before and after this modification is also presented.

RF Accelerated High Energy (1-3 MeV) Neutral Beams for Tokamak Plasma Heating, Current Drive and Alpha Diagnostics

1989 ◽  
Vol 15 (2P2A) ◽  
pp. 734-739 ◽  
Author(s):  
W. R. Becraft ◽  
† J.H. Whealton ◽  
T.P. Wangler ◽  
‡ A. Schempp ◽  
** G.E. McMichael ◽  
...  
Keyword(s):  
Plasma Heating ◽  
High Energy ◽  
Current Drive ◽  
Tokamak Plasma ◽  
Heating Current ◽  
Neutral Beams

scholarly journals Magnetic fusion with high energy self-colliding ion beams

1993 ◽  
Vol 70 (12) ◽  
pp. 1818-1821 ◽  
Author(s):  
N. Rostoker ◽  
F. Wessel ◽  
H. Rahman ◽  
B. C. Maglich ◽  
B. Spivey ◽  
...  
Keyword(s):  
High Energy ◽  
Ion Beams ◽  
Magnetic Fusion

scholarly journals New scheme to trigger fusion in a compact magnetic fusion device by combining muon catalysis and alpha heating effects

2016 ◽  
Vol 4 ◽  
Author(s):  
S.D. Moustaizis ◽  
P. Lalousis ◽  
H. Hora ◽  
Z. Henis ◽  
S. Eliezer ◽  
...  
Keyword(s):  
Nuclear Reactions ◽  
Clean Energy ◽  
Laser Pulses ◽  
High Energy ◽  
High Repetition Rate ◽  
Fusion Process ◽  
Muon Catalyzed Fusion ◽  
Magnetic Fusion ◽  
Fusion Device ◽  
High Efficient

The application of laser pulses with psec or shorter duration enables nonthermal efficient ultrahigh acceleration of plasma blocks with homogeneous high ion energies exceeding ion current densities of $10^{12}~\text{A}~\text{cm}^{-2}$ . The effects of ultrahigh acceleration of plasma blocks with high energy proton beams are proposed for muon production in a compact magnetic fusion device. The proposed new scheme consists of an ignition fusion spark by muon catalyzed fusion ( $\unicode[STIX]{x03BC}$ CF) in a small mirror-like configuration where low temperature D–T plasma is trapped for a duration of $1~\unicode[STIX]{x03BC}\text{s}$ . This initial fusion spark produces sufficient alpha heating in order to initiate the fusion process in the main device. The use of a multi-fluid global particle and energy balance code allows us to follow the temporal evolution of the reaction rate of the fusion process in the device. Recent progress on the ICAN and IZEST projects for high efficient high power and high repetition rate laser systems allows development of the proposed device for clean energy production. With the proposed approaches, experiments on fusion nuclear reactions and $\unicode[STIX]{x03BC}$ CF process can be performed in magnetized plasmas in existing kJ $/$ PW laser facilities as the GEKKO-LFEX, the PETAL and the ORION or in the near future laser facilities as the ELI-NP Romanian pillar.

Efficient High-Power High-Energy Neutral Beams for the Reference Mirror Reactor

1979 ◽  
Vol 7 (1) ◽  
pp. 21-34 ◽  
Author(s):  
J. H. Fink ◽  
W. L. Barr ◽  
G. W. Hamilton
Keyword(s):  
High Power ◽  
High Energy ◽  
Reference Mirror ◽  
Neutral Beams
Sign in / Sign up

Export Citation Format

Share Document