Tritium particle transport experiments on TFTR during D-T operation
Journal Article
·
· Physical Review Letters
- Plasma Physics Laboratory, Princeton University, Princeton, New Jersey 08543 (United States)
The {ital t}({ital d},{ital n}){alpha} and {ital d}({ital d},{ital n}){sup 3}He neutron emissivity profiles are measured in a deuterium neutral-beam--heated plasma where a small amount of tritium (T) gas has been puffed. The tritium density is inferred from the neutron emissivities, and transport coefficients ({ital D},{ital V}) are determined. The particle diffusivities of T and {sup 4}He and the thermal diffusivity are similar in magnitude and profile shape. The convective velocity is small for {ital r}/{ital a}{lt}0.6, and is anomalous for {ital r}/{ital a}{gt}0.6. These are the first measurements of {ital D} and {ital V} for a hydrogen isotope in a tokamak plasma.
- Research Organization:
- Princeton Plasma Physics Laboratory
- DOE Contract Number:
- AC02-76CH03073
- OSTI ID:
- 81928
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 1 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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