Proceedings of the 19th IEEE/IPSS Symposium on Fusion Engineering. 19th SOFE (Cat. No.02CH37231)
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Determination of the CICC joint length by transposition of the cable strands
- Trang 380-383
In an integrated structure low resistance CICC Joint, current is conducted by
outer cable strands coming into touch with the conductive Cu sole. So it is an
important condition for the satisfying joint performance that each strand of the
cable inside the joint is able to come to the outermost of the cable by
transposition. This paper presents analysis, calculation and figures for the
strand transp...
#Spirals #Superconducting cables #Coils #Conductors #Equations #Plasmas #Contracts #Superconductivity #Steel #Wrapping
Toroidal Field Model Coil geometry survey
- Trang 213-216
The Toroidal Field Model Coil (TFMC) is a 36 tons "race-track" shaped coil about
4 m high and 3 m wide scaled with respect to the full-size ITER TF coils and
including the key technical features and manufacturing approaches foreseen for
the actual ITER TF coils. The objective of the TFMC Project is to develop and
demonstrate the superconducting magnet technology to a level that will allow the
ITER...
#Solid modeling #Geometry #Assembly #Superconducting coils #Virtual manufacturing #Superconducting magnets #Steel #Computer simulation #Laser modes #Information retrieval
Progress of the KSTAR tokamak engineering
- Trang 448-453
The KSTAR tokamak is under construction with aim of establishing a scientific
and technological basis for an attractive fusion reactor. The KSTAR tokamak
system consists of a vacuum vessel, magnet systems, in-vessel components, a
cryostat, thermal shields, a vacuum pumping system, and ancillary systems. These
systems are in the final stage of engineering design and prototype manufacturing
with ind...
#Tokamaks #Vacuum systems #Prototypes #Fusion reactor design #Magnetic shielding #Design engineering #Magnetic analysis #Fusion reactors #Manufacturing industries #Performance analysis
Compact flexible pellet injection system for plasma fueling experiments
- Trang 76-79
A compact pellet injection system has been designed and constructed at the Oak
Ridge National Laboratory to provide a flexible fueling system for studies in
magnetic confinement fusion devices. The system, referred to as a "pellet
injector in a suitcase," is a pipe gun device with a four-barrel capability (1-
to 4-mm bore), and it uses a cryogenic refrigerator for in-situ hydrogen pellet
formation...
#Plasma confinement #Instruments #Plasma devices #Laboratories #Magnetic confinement #Boring #Cryogenics #Refrigeration #Hydrogen #Acceleration
Boronization using deuterated-decaborane in JT-60U
- Trang 388-391
In JT-60U, boronization using hydride-decaborane (B/sub 10/H/sub 14/)
vaporization has been conducted for the first wall conditioning. Compared to
other discharge cleaning, boronization is claimed to be efficient in reduction
of both oxygen impurities and hydrogen recycling in plasma. However, there are a
few issues for reducing of hydrogen included in boron film and for stabilizing
of DC glow dis...
#Helium #Boron #Hydrogen #Plasmas #Tokamaks #Cleaning #Impurities #Recycling #Isotopes #Weight control
Effects of operating parameters on the beam species of DIII-D neutral beam ion sources
- Trang 40-43
The DIII-D fusion science research facility employs positive-ion based neutral
beam ion sources for plasma heating and current drive experiments. Ion species
produced inside the arc chamber of an ion source determine the composition of
the neutral beams injected into the plasma and in turn affect the energy
deposition along the cross section of the plasma. Arc chamber design and
operation schemes ...
#Ion beams #Ion beam effects #Ion sources #Plasma sources #Particle beams #Arc discharges #Deuterium #Plasma temperature #Nuclear and plasma sciences #Heating
Computer and network infrastructure of the National Spherical Torus Experiment
- Trang 238-241
The National Spherical Torus Experiment (NSTX) began acquiring data in February
1999. From the beginning it utilized a heterogeneous collection of computer
platforms for control, data acquisition, analysis and. security. Computer
processing, data acquisition and storage, and network capacity have been
subsequently increased. The variety of platforms used for data acquisition and
analysis, as well ...
#Computer networks #Data acquisition #Data analysis #Videoconference #Communication system control #Computer security #Data security #National security #Protocols #Ethernet networks
Proceedings of the 19th IEEE/IPSS Symposium on Fusion Engineering. 19th SOFE (Cat. No.02CH37231)
- 2002
Presents the front cover of the proceedings record.
Thermal design of GA ECH launcher mirror for long pulse operation
- Trang 137-139
Each GA ECH launcher mirrors is used to transmit 800 kW of power to the plasma.
Until 2000, the pulse length for use of these mirrors was limited to 2 s due to
temperatures of the mirrors resulting from 1) a high ratcheted bulk temperature
and 2) a large increase in temperature of the mirror during the pulse. A new
design was proposed and implemented which has extended the capability of the
mirror...
#Mirrors #Plasma temperature #Plasma measurements #Propagation losses #Plasma waves #Tokamaks #Cooling #Conductivity #Finite element methods #Length measurement
Recent results and future plan on JT-60U
- Trang 276-281
Recently, JT-60U has intensively addressed enhancement and long sustainment of
steady state performance in the use of negative-ion based neutral beam injection
(N-NBI) and electron cyclotron (EC) wave injection. The N-NBI increased the
current drive efficiency up to 1.55/spl times/10/sup 19/ A/m/sup 2//W at 360 keV
and enhanced the fusion triple product up to n/sub i/(0)/spl tau//sub E/T/sub
l/(0)...
#Plasma temperature #Plasma waves #Plasma confinement #Plasma materials processing #Steady-state #Tokamaks #Inductors #Electron beams #Cyclotrons #Heating