Trace tritium and the H-mode density limit

G. F. Matthews; K. D. Zastrow; P. Andrew; B. Balet; N. P. Basse; J. Ehrenberg; S. K. Erents; H. Guo; N. Jarvis; M. Loughlin; F. Marcus; R. Monk; M. O'Mullane; L. Lauro-Taroni; G. Sadler; G. Saibene; R. Simonini; P. C. Stangeby; J. Strachan; A. Taroni

doi:10.1016/S0022-3115(98)00858-7

Trace tritium and the H-mode density limit

G. F. Matthews, K. D. Zastrow, P. Andrew, B. Balet, N. P. Basse, J. Ehrenberg, S. K. Erents, H. Guo, N. Jarvis, M. Loughlin, F. Marcus, R. Monk, M. O'Mullane, L. Lauro-Taroni, G. Sadler, G. Saibene, R. Simonini, P. C. Stangeby, J. Strachan, A. Taroni

Research output: Contribution to journal › Conference article › peer-review

9 Scopus citations

Abstract

Trace amounts of tritium gas have been injected in short puffs into JET ELMy H-modes with a wide range of deuterium gas-fuelling rates. Analysis of the subsequent time evolution of the neutron profile and extraction of the particle transport coefficients have allowed us to distinguish between broad classes of mechanism which have been suggested as explanations for the H-mode density limit. The high penetration probability (approximately 20%) and rapid transport (approximately τ_E) of fuel ions are shown to be only weakly influenced by strong gas fuelling - hence mixture control is possible even when the total electron content is clamped.

Original language	English
Pages (from-to)	1134-1138
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	266
DOIs	https://doi.org/10.1016/S0022-3115(98)00858-7
State	Published - Mar 2 1999
Externally published	Yes

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Matthews, G. F., Zastrow, K. D., Andrew, P., Balet, B., Basse, N. P., Ehrenberg, J., Erents, S. K., Guo, H., Jarvis, N., Loughlin, M., Marcus, F., Monk, R., O'Mullane, M., Lauro-Taroni, L., Sadler, G., Saibene, G., Simonini, R., Stangeby, P. C., Strachan, J., & Taroni, A. (1999). Trace tritium and the H-mode density limit. Journal of Nuclear Materials, 266, 1134-1138. https://doi.org/10.1016/S0022-3115(98)00858-7

@article{709fbfb361e3493b806d48d6b072a783,

title = "Trace tritium and the H-mode density limit",

abstract = "Trace amounts of tritium gas have been injected in short puffs into JET ELMy H-modes with a wide range of deuterium gas-fuelling rates. Analysis of the subsequent time evolution of the neutron profile and extraction of the particle transport coefficients have allowed us to distinguish between broad classes of mechanism which have been suggested as explanations for the H-mode density limit. The high penetration probability (approximately 20%) and rapid transport (approximately τE) of fuel ions are shown to be only weakly influenced by strong gas fuelling - hence mixture control is possible even when the total electron content is clamped.",

author = "Matthews, {G. F.} and Zastrow, {K. D.} and P. Andrew and B. Balet and Basse, {N. P.} and J. Ehrenberg and Erents, {S. K.} and H. Guo and N. Jarvis and M. Loughlin and F. Marcus and R. Monk and M. O'Mullane and L. Lauro-Taroni and G. Sadler and G. Saibene and R. Simonini and Stangeby, {P. C.} and J. Strachan and A. Taroni",

year = "1999",

month = mar,

day = "2",

doi = "10.1016/S0022-3115(98)00858-7",

language = "English",

volume = "266",

pages = "1134--1138",

journal = "Journal of Nuclear Materials",

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Matthews, GF, Zastrow, KD, Andrew, P, Balet, B, Basse, NP, Ehrenberg, J, Erents, SK, Guo, H, Jarvis, N, Loughlin, M, Marcus, F, Monk, R, O'Mullane, M, Lauro-Taroni, L, Sadler, G, Saibene, G, Simonini, R, Stangeby, PC, Strachan, J & Taroni, A 1999, 'Trace tritium and the H-mode density limit', Journal of Nuclear Materials, vol. 266, pp. 1134-1138. https://doi.org/10.1016/S0022-3115(98)00858-7

TY - JOUR

T1 - Trace tritium and the H-mode density limit

AU - Matthews, G. F.

AU - Zastrow, K. D.

AU - Andrew, P.

AU - Balet, B.

AU - Basse, N. P.

AU - Ehrenberg, J.

AU - Erents, S. K.

AU - Guo, H.

AU - Jarvis, N.

AU - Loughlin, M.

AU - Marcus, F.

AU - Monk, R.

AU - O'Mullane, M.

AU - Lauro-Taroni, L.

AU - Sadler, G.

AU - Saibene, G.

AU - Simonini, R.

AU - Stangeby, P. C.

AU - Strachan, J.

AU - Taroni, A.

PY - 1999/3/2

Y1 - 1999/3/2

N2 - Trace amounts of tritium gas have been injected in short puffs into JET ELMy H-modes with a wide range of deuterium gas-fuelling rates. Analysis of the subsequent time evolution of the neutron profile and extraction of the particle transport coefficients have allowed us to distinguish between broad classes of mechanism which have been suggested as explanations for the H-mode density limit. The high penetration probability (approximately 20%) and rapid transport (approximately τE) of fuel ions are shown to be only weakly influenced by strong gas fuelling - hence mixture control is possible even when the total electron content is clamped.

AB - Trace amounts of tritium gas have been injected in short puffs into JET ELMy H-modes with a wide range of deuterium gas-fuelling rates. Analysis of the subsequent time evolution of the neutron profile and extraction of the particle transport coefficients have allowed us to distinguish between broad classes of mechanism which have been suggested as explanations for the H-mode density limit. The high penetration probability (approximately 20%) and rapid transport (approximately τE) of fuel ions are shown to be only weakly influenced by strong gas fuelling - hence mixture control is possible even when the total electron content is clamped.

UR - http://www.scopus.com/inward/record.url?scp=0032674177&partnerID=8YFLogxK

U2 - 10.1016/S0022-3115(98)00858-7

DO - 10.1016/S0022-3115(98)00858-7

M3 - Conference article

AN - SCOPUS:0032674177

SN - 0022-3115

VL - 266

SP - 1134

EP - 1138

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Trace tritium and the H-mode density limit

Abstract

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