Tritium particle transport experiments on TFTR during D-T operation

P. C. Efthimion; L. C. Johnson; J. D. Strachan; E. J. Synakowski; M. Zarnstorff; H. Adler; C. Barnes; R. V. Budny; F. C. Jobes; M. Louglin; D. McCune; D. Mueller; A. T. Ramsey; G. Rewoldt; A. L. Roquemore; W. M. Tang; G. Taylor

doi:10.1103/PhysRevLett.75.85

Tritium particle transport experiments on TFTR during D-T operation

P. C. Efthimion, L. C. Johnson, J. D. Strachan, E. J. Synakowski, M. Zarnstorff, H. Adler, C. Barnes, R. V. Budny, F. C. Jobes, M. Louglin, D. McCune, D. Mueller, A. T. Ramsey, G. Rewoldt, A. L. Roquemore, W. M. Tang, G. Taylor

Department of Physics

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The td,nα and d(d,n)3He 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 (D,V) are determined. The particle diffusivities of T and 4He and the thermal diffusivity are similar in magnitude and profile shape. The convective velocity is small for r/a<0.6, and is anomalous for r/a>0.6. These are the first measurements of D and V for a hydrogen isotope in a tokamak plasma.

Original language	English
Pages (from-to)	85-88
Number of pages	4
Journal	Physical Review Letters
Volume	75
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.75.85
State	Published - 1995

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Efthimion, P. C., Johnson, L. C., Strachan, J. D., Synakowski, E. J., Zarnstorff, M., Adler, H., Barnes, C., Budny, R. V., Jobes, F. C., Louglin, M., McCune, D., Mueller, D., Ramsey, A. T., Rewoldt, G., Roquemore, A. L., Tang, W. M., & Taylor, G. (1995). Tritium particle transport experiments on TFTR during D-T operation. Physical Review Letters, 75(1), 85-88. https://doi.org/10.1103/PhysRevLett.75.85

@article{542069a752af47dea0877d66753d218c,

title = "Tritium particle transport experiments on TFTR during D-T operation",

abstract = "The td,nα and d(d,n)3He 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 (D,V) are determined. The particle diffusivities of T and 4He and the thermal diffusivity are similar in magnitude and profile shape. The convective velocity is small for r/a<0.6, and is anomalous for r/a>0.6. These are the first measurements of D and V for a hydrogen isotope in a tokamak plasma.",

author = "Efthimion, {P. C.} and Johnson, {L. C.} and Strachan, {J. D.} and Synakowski, {E. J.} and M. Zarnstorff and H. Adler and C. Barnes and Budny, {R. V.} and Jobes, {F. C.} and M. Louglin and D. McCune and D. Mueller and Ramsey, {A. T.} and G. Rewoldt and Roquemore, {A. L.} and Tang, {W. M.} and G. Taylor",

year = "1995",

doi = "10.1103/PhysRevLett.75.85",

language = "English",

volume = "75",

pages = "85--88",

number = "1",

}

Efthimion, PC, Johnson, LC, Strachan, JD, Synakowski, EJ, Zarnstorff, M, Adler, H, Barnes, C, Budny, RV, Jobes, FC, Louglin, M, McCune, D, Mueller, D, Ramsey, AT, Rewoldt, G, Roquemore, AL, Tang, WM & Taylor, G 1995, 'Tritium particle transport experiments on TFTR during D-T operation', Physical Review Letters, vol. 75, no. 1, pp. 85-88. https://doi.org/10.1103/PhysRevLett.75.85

TY - JOUR

T1 - Tritium particle transport experiments on TFTR during D-T operation

AU - Efthimion, P. C.

AU - Johnson, L. C.

AU - Strachan, J. D.

AU - Synakowski, E. J.

AU - Zarnstorff, M.

AU - Adler, H.

AU - Barnes, C.

AU - Budny, R. V.

AU - Jobes, F. C.

AU - Louglin, M.

AU - McCune, D.

AU - Mueller, D.

AU - Ramsey, A. T.

AU - Rewoldt, G.

AU - Roquemore, A. L.

AU - Tang, W. M.

AU - Taylor, G.

PY - 1995

Y1 - 1995

N2 - The td,nα and d(d,n)3He 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 (D,V) are determined. The particle diffusivities of T and 4He and the thermal diffusivity are similar in magnitude and profile shape. The convective velocity is small for r/a<0.6, and is anomalous for r/a>0.6. These are the first measurements of D and V for a hydrogen isotope in a tokamak plasma.

AB - The td,nα and d(d,n)3He 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 (D,V) are determined. The particle diffusivities of T and 4He and the thermal diffusivity are similar in magnitude and profile shape. The convective velocity is small for r/a<0.6, and is anomalous for r/a>0.6. These are the first measurements of D and V for a hydrogen isotope in a tokamak plasma.

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U2 - 10.1103/PhysRevLett.75.85

DO - 10.1103/PhysRevLett.75.85

M3 - Article

AN - SCOPUS:0009487760

SN - 0031-9007

VL - 75

SP - 85

EP - 88

JO - Physical Review Letters

JF - Physical Review Letters

IS - 1

ER -

Tritium particle transport experiments on TFTR during D-T operation

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