Charged fusion product and fast ion loss in TFTR
Several different fusion product and fast ion loss processes have been observed in TFTR using an array of pitch angle, energy and time resolved scintillator detectors located near the vessel wall. For D-D fusion products (3 MeV protons and 1 MeV tritons) the observed loss is generally consistent with expected first-orbit loss for Ip < 1.4 MA, except near the outer midplane where stochastic TF ripple loss dominates when Ip > I MA. However, at higher currents, Ip = 1.4--2.5 MA, an NM induced D-D fusion product loss can be up to 3-4 times larger than the first-orbit loss, particularly at high beam powers, P [ge] 25 MW. The MHD induced loss of 100 KeV neutron beam ions and [approximately]0.5 MeV ICRF minority tail tons has also been measured [le] 459 below the outer midplane. be potential implications of these results for D-T alpha particle experiments in TFTR and ITER are described.
- Research Organization:
- Princeton Univ., NJ (United States). Plasma Physics Lab.
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 6495847
- Report Number(s):
- PPPL-2891; IAEA-CN-56/A-6-3; CONF-920913-29; ON: DE93011494
- Resource Relation:
- Conference: 14. international conference on plasma physics and controlled nuclear fusion research, Wuerzburg (Germany), 30 Sep - 7 Oct 1992
- Country of Publication:
- United States
- Language:
- English
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Measurements of charged fusion product diffusion in TFTR
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Related Subjects
ALPHA PARTICLES
PARTICLE LOSSES
DEUTERIUM IONS
CHARGED-PARTICLE TRANSPORT
ICR HEATING
ITER TOKAMAK
MHD EQUILIBRIUM
PLASMA INSTABILITY
TFTR TOKAMAK
CHARGED PARTICLES
CLOSED PLASMA DEVICES
EQUILIBRIUM
HEATING
HIGH-FREQUENCY HEATING
INSTABILITY
IONS
PLASMA HEATING
RADIATION TRANSPORT
THERMONUCLEAR DEVICES
TOKAMAK DEVICES
700310* - Plasma Confinement- (1992-)
700330 - Plasma Kinetics
Transport
& Impurities- (1992-)