Tritium recycling and retention in JET

P. Andrew; D. Brennan; J. P. Coad; J. Ehrenberg; M. Gadeberg; A. Gibson; M. Groth; J. How; O. N. Jarvis; H. Jensen; R. Lässer; F. Marcus; R. Monk; P. Morgan; J. Orchard; A. Peacock; R. Pearce; M. Pick; A. Rossi; B. Schunke; M. Stamp; M. Von Hellermann; D. L. Hillis; J. Hogan

doi:10.1016/S0022-3115(98)00662-X

Tritium recycling and retention in JET

P. Andrew^*, D. Brennan, J. P. Coad, J. Ehrenberg, M. Gadeberg, A. Gibson, M. Groth, J. How, O. N. Jarvis, H. Jensen, R. Lässer, F. Marcus, R. Monk, P. Morgan, J. Orchard, A. Peacock, R. Pearce, M. Pick, A. Rossi, B. SchunkeM. Stamp, M. Von Hellermann, D. L. Hillis, J. Hogan

^*Corresponding author for this work

Not published at Aalto University

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

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Abstract

JET's 1997 Deuterium Tritium Experiment (DTE1) allows a detailed study of hydrogenic isotope recycling and retention in a pumped divertor configuration relevant to ITER. There appear to be two distinct forms of retained tritium. (1) A dynamic inventory which controls the fueling behaviour of a single discharge, and in particular determines the isotopic composition. This is shown to be consistent with neutral particle implantation over the whole vessel surface area. (2) A continually growing inventory, which plays a small role in the particle balance of a single discharge, but ultimately dominates the hydrogenic inventory for an experimental campaign comprising thousands of pulses. This will be the dominant retention mechanism in long-pulse devices like ITER. The JET retention scaled-up to ITER proportions suggests that ITER may reach its tritium inventory limit in less than 100 pulses.

Original language	English
Pages (from-to)	153-159
Number of pages	7
Journal	Journal of Nuclear Materials
Volume	266-269
DOIs	https://doi.org/10.1016/S0022-3115(98)00662-X
Publication status	Published - Mar 1999
MoE publication type	A1 Journal article-refereed

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Andrew, P., Brennan, D., Coad, J. P., Ehrenberg, J., Gadeberg, M., Gibson, A., Groth, M., How, J., Jarvis, O. N., Jensen, H., Lässer, R., Marcus, F., Monk, R., Morgan, P., Orchard, J., Peacock, A., Pearce, R., Pick, M., Rossi, A., ... Hogan, J. (1999). Tritium recycling and retention in JET. Journal of Nuclear Materials, 266-269, 153-159. https://doi.org/10.1016/S0022-3115(98)00662-X

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title = "Tritium recycling and retention in JET",

abstract = "JET's 1997 Deuterium Tritium Experiment (DTE1) allows a detailed study of hydrogenic isotope recycling and retention in a pumped divertor configuration relevant to ITER. There appear to be two distinct forms of retained tritium. (1) A dynamic inventory which controls the fueling behaviour of a single discharge, and in particular determines the isotopic composition. This is shown to be consistent with neutral particle implantation over the whole vessel surface area. (2) A continually growing inventory, which plays a small role in the particle balance of a single discharge, but ultimately dominates the hydrogenic inventory for an experimental campaign comprising thousands of pulses. This will be the dominant retention mechanism in long-pulse devices like ITER. The JET retention scaled-up to ITER proportions suggests that ITER may reach its tritium inventory limit in less than 100 pulses.",

author = "P. Andrew and D. Brennan and Coad, {J. P.} and J. Ehrenberg and M. Gadeberg and A. Gibson and M. Groth and J. How and Jarvis, {O. N.} and H. Jensen and R. L{\"a}sser and F. Marcus and R. Monk and P. Morgan and J. Orchard and A. Peacock and R. Pearce and M. Pick and A. Rossi and B. Schunke and M. Stamp and {Von Hellermann}, M. and Hillis, {D. L.} and J. Hogan",

year = "1999",

month = mar,

doi = "10.1016/S0022-3115(98)00662-X",

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Andrew, P, Brennan, D, Coad, JP, Ehrenberg, J, Gadeberg, M, Gibson, A, Groth, M, How, J, Jarvis, ON, Jensen, H, Lässer, R, Marcus, F, Monk, R, Morgan, P, Orchard, J, Peacock, A, Pearce, R, Pick, M, Rossi, A, Schunke, B, Stamp, M, Von Hellermann, M, Hillis, DL & Hogan, J 1999, 'Tritium recycling and retention in JET', Journal of Nuclear Materials, vol. 266-269, pp. 153-159. https://doi.org/10.1016/S0022-3115(98)00662-X

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AU - Andrew, P.

AU - Brennan, D.

AU - Coad, J. P.

AU - Ehrenberg, J.

AU - Gadeberg, M.

AU - Gibson, A.

AU - Groth, M.

AU - How, J.

AU - Jarvis, O. N.

AU - Jensen, H.

AU - Lässer, R.

AU - Marcus, F.

AU - Monk, R.

AU - Morgan, P.

AU - Orchard, J.

AU - Peacock, A.

AU - Pearce, R.

AU - Pick, M.

AU - Rossi, A.

AU - Schunke, B.

AU - Stamp, M.

AU - Von Hellermann, M.

AU - Hillis, D. L.

AU - Hogan, J.

PY - 1999/3

Y1 - 1999/3

N2 - JET's 1997 Deuterium Tritium Experiment (DTE1) allows a detailed study of hydrogenic isotope recycling and retention in a pumped divertor configuration relevant to ITER. There appear to be two distinct forms of retained tritium. (1) A dynamic inventory which controls the fueling behaviour of a single discharge, and in particular determines the isotopic composition. This is shown to be consistent with neutral particle implantation over the whole vessel surface area. (2) A continually growing inventory, which plays a small role in the particle balance of a single discharge, but ultimately dominates the hydrogenic inventory for an experimental campaign comprising thousands of pulses. This will be the dominant retention mechanism in long-pulse devices like ITER. The JET retention scaled-up to ITER proportions suggests that ITER may reach its tritium inventory limit in less than 100 pulses.

AB - JET's 1997 Deuterium Tritium Experiment (DTE1) allows a detailed study of hydrogenic isotope recycling and retention in a pumped divertor configuration relevant to ITER. There appear to be two distinct forms of retained tritium. (1) A dynamic inventory which controls the fueling behaviour of a single discharge, and in particular determines the isotopic composition. This is shown to be consistent with neutral particle implantation over the whole vessel surface area. (2) A continually growing inventory, which plays a small role in the particle balance of a single discharge, but ultimately dominates the hydrogenic inventory for an experimental campaign comprising thousands of pulses. This will be the dominant retention mechanism in long-pulse devices like ITER. The JET retention scaled-up to ITER proportions suggests that ITER may reach its tritium inventory limit in less than 100 pulses.

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JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

ER -

Tritium recycling and retention in JET

Abstract

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