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Confinement of fusion reaction products during the fishbone instability

Technical Report ·
DOI:https://doi.org/10.2172/6440345· OSTI ID:6440345
; ;
The presence of fishbone events in the PDX tokamak is correlated with a reduction in the burnup of 0.8 MeV /sup 3/He ions. This reduction is probably caused by distortion of the /sup 3/He drift orbits in the helical magnetic fields associated with the instability, resulting in the loss of about 70% of the confined /sup 3/He ions in a moderately strong fishbone. Such a nonresonant loss of particles with large orbits indicates that fishbone events may influence 3.5 MeV alphas in ignition experiments.
Research Organization:
Princeton Univ., NJ (USA). Plasma Physics Lab.
DOE Contract Number:
AC02-76CH03073
OSTI ID:
6440345
Report Number(s):
PPPL-2135; ON: DE85002123
Country of Publication:
United States
Language:
English

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Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700107* -- Fusion Energy-- Plasma Research-- Instabilities
CHARGED PARTICLES
CLOSED PLASMA DEVICES
ENERGY LOSSES
EVEN-ODD NUCLEI
FISHBONE INSTABILITY
HELIUM 3
HELIUM IONS
HELIUM ISOTOPES
INSTABILITY
IONS
ISOTOPES
LIGHT NUCLEI
LOSSES
NUCLEI
ORBITS
PDX DEVICES
PLASMA INSTABILITY
PLASMA MACROINSTABILITIES
STABLE ISOTOPES
THERMONUCLEAR DEVICES
THERMONUCLEAR IGNITION
TOKAMAK DEVICES