Characterization of 1 MW, 40 keV, 1 s neutral beam for plasma heating

2010 ◽  
Vol 81 (2) ◽  
pp. 02B108 ◽  
Author(s):  
A. Sorokin ◽  
V. Belov ◽  
V. Davydenko ◽  
P. Deichuli ◽  
A. Ivanov ◽  
...  
Keyword(s):  
Plasma Heating ◽  
Neutral Beam

Study of plasma heating in discharges with neutral beam injection in the Globus-M spherical tokamak

2008 ◽  
Vol 34 (2) ◽  
pp. 81-94 ◽  
Author(s):  
B. B. Ayushin ◽  
A. G. Barsukov ◽  
V. K. Gusev ◽  
L. A. Esipov ◽  
E. G. Zhilin ◽  
...  
Keyword(s):  
Plasma Heating ◽  
Neutral Beam Injection ◽  
Neutral Beam ◽  
Spherical Tokamak ◽  
Beam Injection

scholarly journals Concept of plasma heating and current drive neutral beam system for fusion neutron source “DEMO-FNS”

2018 ◽  
Author(s):  
S. S. Ananyev ◽  
A. A. Panasenkov ◽  
A. I. Krylov ◽  
E. D. Dlougach ◽  
B. V. Kuteev
Keyword(s):  
Neutron Source ◽  
Plasma Heating ◽  
Current Drive ◽  
Neutral Beam ◽  
Fusion Neutron ◽  
Beam System ◽  
Fusion Neutron Source

The DITE tokamak experiment

1981 ◽  
Vol 300 (1456) ◽  
pp. 535-545 ◽  
Keyword(s):  
Boundary Layer ◽  
Plasma Heating ◽  
Neutral Beam ◽  
Spent Fuel ◽  
Neutral Atoms ◽  
Fusion Reactions ◽  
Energetic Neutral Atoms ◽  
Hot Plasma

The expectation of power from fusion reactions currently involves magnetic containment of hot plasma in the tokamak toroidal configuration, and plasma heating by injection of energetic neutral atoms. Isolation of the plasma from the walls, to maintain the required purity, and exhaust of the spent fuel both involve the use of a divertor. This removes plasma from the boundary layer into a separate chamber. We report tests of these concepts in the Divertor Injection Tokamak Experiment (DITE) at Culham Laboratory. We also present the first measurements in a tokamak of the neutral-beam driven current. This demonstrates the principle of a continuously operating tokamak, with possible advantages for a reactor.

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.

Role of impurities and electric field in plasma heating by an injected neutral beam in tokamaks

1977 ◽  
Vol 17 (3) ◽  
pp. 433-442 ◽  
Author(s):  
Yu. N. Dnestrovskij ◽  
D.P. Kostomarov ◽  
A.P. Smirnov
Keyword(s):  
Electric Field ◽  
Plasma Heating ◽  
Neutral Beam

scholarly journals RF wave coupling, plasma heating and characterization of induced plasma-material interactions in WEST L-mode discharges

2021 ◽  
Author(s):  
Guillaume Urbanczyk ◽  
Laurent Colas ◽  
Julien Hillairet ◽  
Ernesto A Lerche ◽  
Nicolas Fedorczak ◽  
...  
Keyword(s):  
Plasma Heating ◽  
Wave Coupling ◽  
Plasma Material Interactions

Surface characterization of silica fine powder prepared by microwave cold plasma heating

1995 ◽  
Vol 5 (3) ◽  
pp. 527 ◽  
Author(s):  
Yasushi Nakano ◽  
Kazuo Sugiyama ◽  
Sanae Ogasawara ◽  
Katsuko Enomoto ◽  
Tsuneo Matsuda
Keyword(s):  
Cold Plasma ◽  
Surface Characterization ◽  
Plasma Heating ◽  
Fine Powder

Characterization of RUDI Neutral Beam Parameters by Optical Diagnostics

2011 ◽  
Vol 59 (1T) ◽  
pp. 274-276 ◽  
Author(s):  
A. Listopad ◽  
V. Davydenko ◽  
S. Freutel ◽  
A. Ivanov ◽  
B. Schweer ◽  
...  
Keyword(s):  
Optical Diagnostics ◽  
Neutral Beam ◽  
Beam Parameters

Initial long-pulse plasma heating at reduced power with negative-ion-based neutral beam injector in large helical device

1999 ◽  
Vol 70 (11) ◽  
pp. 4260-4265 ◽  
Author(s):  
Y. Takeiri ◽  
N. Noda ◽  
Y. Nakamura ◽  
Y. Oka ◽  
M. Osakabe ◽  
...  
Keyword(s):  
Plasma Heating ◽  
Negative Ion ◽  
Neutral Beam ◽  
Pulse Plasma ◽  
Neutral Beam Injector ◽  
Long Pulse
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