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L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor

E. R. Solano, G. Birkenmeier, C. Silva, E. Delabie, J. C. Hillesheim, A. Baciero, I. Balboa, M. Baruzzo, A. Boboc, M. Brix, et al.
(2023) NUCLEAR FUSION. 63(11).
Author
Organization
Abstract
The recent deuterium-tritium campaign in JET-ILW (DTE2) has provided a unique opportunity to study the isotope dependence of the L-H power threshold in an ITER-like wall environment (Be wall and W divertor). Here we present results from dedicated L-H transition experiments at JET-ILW, documenting the power threshold in tritium and deuterium-tritium plasmas, comparing them with the matching deuterium and hydrogen datasets. From earlier experiments in JET-ILW it is known that as plasma isotopic composition changes from deuterium, through varying deuterium/hydrogen concentrations, to pure hydrogen, the value of the line averaged density at which the threshold is minimum, (n) over bar (e,min), increases, leading us to expect that (n) over bar (e,min)(T) < <(n)over bar>(e,min)(DT) < <(n)over bar>(e,min)(D) < <(n)over bar>(e,min)(H). The new power threshold data confirms these expectations in most cases, with the corresponding ordering of the minimum power thresholds. We present a comparison of this data to power threshold scalings, used for extrapolation to future devices such as ITER and DEMO.
Keywords
L-H transition, power threshold, tokamaks, Tritium, DT, JET-ILW, isotope, MODE, CONFINEMENT, DISCHARGES

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MLA
Solano, E. R., et al. “L-H Transition Studies in Tritium and Deuterium-Tritium Campaigns at JET with Be Wall and W Divertor.” NUCLEAR FUSION, vol. 63, no. 11, 2023, doi:10.1088/1741-4326/acee12.
APA
Solano, E. R., Birkenmeier, G., Silva, C., Delabie, E., Hillesheim, J. C., Baciero, A., … Wilson, T. (2023). L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor. NUCLEAR FUSION, 63(11). https://doi.org/10.1088/1741-4326/acee12
Chicago author-date
Solano, E. R., G. Birkenmeier, C. Silva, E. Delabie, J. C. Hillesheim, A. Baciero, I. Balboa, et al. 2023. “L-H Transition Studies in Tritium and Deuterium-Tritium Campaigns at JET with Be Wall and W Divertor.” NUCLEAR FUSION 63 (11). https://doi.org/10.1088/1741-4326/acee12.
Chicago author-date (all authors)
Solano, E. R., G. Birkenmeier, C. Silva, E. Delabie, J. C. Hillesheim, A. Baciero, I. Balboa, M. Baruzzo, A. Boboc, M. Brix, J. Bernardo, C. Bourdelle, I. S. Carvalho, P. Carvalho, C. D. Challis, M. Chernyshova, A. Chomiczewska, R. Coelho, I. Coffey, T. Craciunescu, E. de la Cal, E. de la Luna, R. Dumont, P. Dumortier, M. Fontana, J. M. Fontdecaba, L. Frassinetti, D. Gallart, J. Garcia, C. Giroud, W. Gromelski, R. B. Henriques, Joseph Hall, A. Ho, L. D. Horton, L. Horvath, P. Jacquet, I. Jepu, E. Joffrin, A. Kappatou, D. L. Keeling, D. B. King, V. G. Kiptily, K. K. Kirov, D. Kos, E. Kowalska-Strzeciwilk, M. Lennholm, E. Lerche, E. Litherland-Smith, A. Loarte, B. Lomanowski, P. J. Lomas, C. F. Maggi, J. Mailloux, M. J. Mantsinen, M. Maslov, A. G. Meigs, I. Monakhov, R. B. Morales, A. H. Nielsen, D. Nina, C. Noble, E. Pawelec, M. Poradzinski, G. Pucella, P. Puglia, D. Refy, J. Juul Rasmussen, E. Righi, F. G. Rimini, T. Robinson, M. Sertoli, S. A. Silburn, G. Sips, P. Siren, Z. Stancar, H. J. Sun, G. Szepesi, D. Taylor, E. Tholerus, B. Thomas, Geert Verdoolaege, P. Vincenzi, B. Viola, N. Vianello, and T. Wilson. 2023. “L-H Transition Studies in Tritium and Deuterium-Tritium Campaigns at JET with Be Wall and W Divertor.” NUCLEAR FUSION 63 (11). doi:10.1088/1741-4326/acee12.
Vancouver
1.
Solano ER, Birkenmeier G, Silva C, Delabie E, Hillesheim JC, Baciero A, et al. L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor. NUCLEAR FUSION. 2023;63(11).
IEEE
[1]
E. R. Solano et al., “L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor,” NUCLEAR FUSION, vol. 63, no. 11, 2023.
@article{01HKPZFDY62EZJT318Z98XSFMT,
  abstract     = {{The recent deuterium-tritium campaign in JET-ILW (DTE2) has provided a unique opportunity to study the isotope dependence of the L-H power threshold in an ITER-like wall environment (Be wall and W divertor). Here we present results from dedicated L-H transition experiments at JET-ILW, documenting the power threshold in tritium and deuterium-tritium plasmas, comparing them with the matching deuterium and hydrogen datasets. From earlier experiments in JET-ILW it is known that as plasma isotopic composition changes from deuterium, through varying deuterium/hydrogen concentrations, to pure hydrogen, the value of the line averaged density at which the threshold is minimum, (n) over bar (e,min), increases, leading us to expect that (n) over bar (e,min)(T) < <(n)over bar>(e,min)(DT) < <(n)over bar>(e,min)(D) < <(n)over bar>(e,min)(H). The new power threshold data confirms these expectations in most cases, with the corresponding ordering of the minimum power thresholds. We present a comparison of this data to power threshold scalings, used for extrapolation to future devices such as ITER and DEMO.}},
  articleno    = {{112011}},
  author       = {{Solano, E. R. and  Birkenmeier, G. and  Silva, C. and  Delabie, E. and  Hillesheim, J. C. and  Baciero, A. and  Balboa, I. and  Baruzzo, M. and  Boboc, A. and  Brix, M. and  Bernardo, J. and  Bourdelle, C. and  Carvalho, I. S. and  Carvalho, P. and  Challis, C. D. and  Chernyshova, M. and  Chomiczewska, A. and  Coelho, R. and  Coffey, I. and  Craciunescu, T. and  de la Cal, E. and  de la Luna, E. and  Dumont, R. and  Dumortier, P. and  Fontana, M. and  Fontdecaba, J. M. and  Frassinetti, L. and  Gallart, D. and  Garcia, J. and  Giroud, C. and  Gromelski, W. and  Henriques, R. B. and Hall, Joseph and  Ho, A. and  Horton, L. D. and  Horvath, L. and  Jacquet, P. and  Jepu, I. and  Joffrin, E. and  Kappatou, A. and  Keeling, D. L. and  King, D. B. and  Kiptily, V. G. and  Kirov, K. K. and  Kos, D. and  Kowalska-Strzeciwilk, E. and  Lennholm, M. and  Lerche, E. and  Litherland-Smith, E. and  Loarte, A. and  Lomanowski, B. and  Lomas, P. J. and  Maggi, C. F. and  Mailloux, J. and  Mantsinen, M. J. and  Maslov, M. and  Meigs, A. G. and  Monakhov, I. and  Morales, R. B. and  Nielsen, A. H. and  Nina, D. and  Noble, C. and  Pawelec, E. and  Poradzinski, M. and  Pucella, G. and  Puglia, P. and  Refy, D. and  Rasmussen, J. Juul and  Righi, E. and  Rimini, F. G. and  Robinson, T. and  Sertoli, M. and  Silburn, S. A. and  Sips, G. and  Siren, P. and  Stancar, Z. and  Sun, H. J. and  Szepesi, G. and  Taylor, D. and  Tholerus, E. and  Thomas, B. and Verdoolaege, Geert and  Vincenzi, P. and  Viola, B. and  Vianello, N. and  Wilson, T.}},
  issn         = {{0029-5515}},
  journal      = {{NUCLEAR FUSION}},
  keywords     = {{L-H transition,power threshold,tokamaks,Tritium,DT,JET-ILW,isotope,MODE,CONFINEMENT,DISCHARGES}},
  language     = {{eng}},
  number       = {{11}},
  pages        = {{16}},
  title        = {{L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor}},
  url          = {{http://doi.org/10.1088/1741-4326/acee12}},
  volume       = {{63}},
  year         = {{2023}},
}
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