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

E. Solano; G. Birkenmeier; C. Silva; E. Delabie; J. Hillesheim; A. Baciero; I. Balboa; M. Baruzzo; A. Boboc; M. Brix; J. Bernardo; C. Bourdelle; I. Carvalho; P. Carvalho; C. 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. Fontdecaba; L. Frassinetti; D. Gallart; J. Garcia; C. Giroud; W. Gromelski; R. Henriques; J. Hall; A. Ho; L.D. Horton; L. Horvath; P. Jacquet; I. Jepu; E. Joffrin; A. Kappatou; D. Keeling; D. King; V. Kiptily; K. Kirov; D. Kos; E. Kowalska-Strzęciwilk; 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; Anders Henry Nielsen; D. Nina; C. Noble; E. Pawelec; M. Poradzinski; Gianluca Pucella; P. Puglia; D. Réfy; Jens Juul Rasmussen; E. Righi; F.G. Rimini; T. Robinson; M. Sertoli; S. A. Silburn; G. Sips; P. Sirén; Žiga Štancar; H. J. Sun; G. Szepesi; D. Taylor; E. Tholerus; Beth Thomas; G. Verdoolaege; P. Vincenzi; Bruno Viola; N Vianello; Thomas Wilson; JET Contributors

doi:10.1088/1741-4326/acee12

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

E. Solano^*
, G. Birkenmeier
, C. Silva
, E. Delabie
, J. Hillesheim
, A. Baciero
, I. Balboa
, M. Baruzzo
, A. Boboc
, M. Brix
, J. Bernardo
, C. Bourdelle
, I. Carvalho
, P. Carvalho
, C. 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. Fontdecaba, L. Frassinetti, D. Gallart, J. Garcia, C. Giroud, W. Gromelski, R. Henriques, J. Hall, A. Ho, L.D. Horton, L. Horvath, P. Jacquet, I. Jepu, E. Joffrin, A. Kappatou, D. Keeling, D. King, V. Kiptily, K. Kirov, D. Kos, E. Kowalska-Strzęciwilk, 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, Anders Henry Nielsen, D. Nina, C. Noble, E. Pawelec, M. Poradzinski, Gianluca Pucella, P. Puglia, D. Réfy, Jens Juul Rasmussen, E. Righi, F.G. Rimini, T. Robinson, M. Sertoli, S. A. Silburn, G. Sips, P. Sirén, Žiga Štancar, H. J. Sun, G. Szepesi, D. Taylor, E. Tholerus, Beth Thomas, G. Verdoolaege, P. Vincenzi, Bruno Viola, N Vianello, Thomas Wilson, JET Contributors

^*Corresponding author for this work

CIEMAT
Technical University of Munich
University of Lisbon
Oak Ridge National Laboratory
University of Padua
Commissariat à l’énergie atomique et aux énergies alternatives
Institute of Plasma Physics and Laser Microfusion
Queen's University Belfast
National Institute for Laser, Plasma and Radiation Physics
Ghent University
Dutch Institute for Fundamental Energy Research
ICREA
University of Opole
Euratom-ENEA-CNR Association
Centre for Energy Research
European Commission
United Kingdom Atomic Energy Authority
Consorzio RFX
ITER
Royal Military Academy
KTH Royal Institute of Technology
Barcelona Supercomputing Center
Max Planck Institute for Plasma Physics

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

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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, n̄_e,min, increases, leading us to expect that n̄_e,min(T) < n̄_e,min(DT) < n̄_e,min(D) < n̄_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.

Original language	English
Article number	112011
Journal	Nuclear Fusion
Volume	63
Issue number	11
Number of pages	17
ISSN	0029-5515
DOIs	https://doi.org/10.1088/1741-4326/acee12
Publication status	Published - 2023

Keywords

DT
Isotope
JET-ILW
L-H transition
Power Threshold
Tokamaks
Tritium

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Solano, E., Birkenmeier, G., Silva, C., Delabie, E., Hillesheim, J., Baciero, A., Balboa, I., Baruzzo, M., Boboc, A., Brix, M., Bernardo, J., Bourdelle, C., Carvalho, I., Carvalho, P., Challis, C., Chernyshova, M., Chomiczewska, A., Coelho, R., Coffey, I., ... JET Contributors (2023). L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor. Nuclear Fusion, 63(11), Article 112011. https://doi.org/10.1088/1741-4326/acee12

@article{0aa467fcc6464ebd988d19f1580bd103,

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

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}e,min, increases, leading us to expect that {\=n}e,min(T) < {\=n}e,min(DT) < {\=n}e,min(D) < {\=n}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 = "DT, Isotope, JET-ILW, L-H transition, Power Threshold, Tokamaks, Tritium",

author = "E. Solano and G. Birkenmeier and C. Silva and E. Delabie and J. Hillesheim and A. Baciero and I. Balboa and M. Baruzzo and A. Boboc and M. Brix and J. Bernardo and C. Bourdelle and I. Carvalho and P. Carvalho and C. Challis and M. Chernyshova and A. Chomiczewska and R. Coelho and I. Coffey and T. Craciunescu and \{de la Cal\}, E. and \{de la Luna\}, E. and R. Dumont and P. Dumortier and M. Fontana and J. Fontdecaba and L. Frassinetti and D. Gallart and J. Garcia and C. Giroud and W. Gromelski and R. Henriques and J. Hall and A. Ho and L.D. Horton and L. Horvath and P. Jacquet and I. Jepu and E. Joffrin and A. Kappatou and D. Keeling and D. King and V. Kiptily and K. Kirov and D. Kos and E. Kowalska-Strz{\c e}ciwilk and M. Lennholm and E. Lerche and E. Litherland-Smith and A. Loarte and B. Lomanowski and P.J. Lomas and C.F. Maggi and J. Mailloux and M.J. Mantsinen and M. Maslov and A.G. Meigs and I. Monakhov and R.B. Morales and Nielsen, \{Anders Henry\} and D. Nina and C. Noble and E. Pawelec and M. Poradzinski and Gianluca Pucella and P. Puglia and D. R{\'e}fy and Rasmussen, \{Jens Juul\} and E. Righi and F.G. Rimini and T. Robinson and M. Sertoli and Silburn, \{S. A.\} and G. Sips and P. Sir{\'e}n and {\v Z}iga {\v S}tancar and Sun, \{H. J.\} and G. Szepesi and D. Taylor and E. Tholerus and Beth Thomas and G. Verdoolaege and P. Vincenzi and Bruno Viola and N Vianello and Thomas Wilson and \{JET Contributors\}",

note = "Publisher Copyright: {\textcopyright} EURATOM 2023",

year = "2023",

doi = "10.1088/1741-4326/acee12",

language = "English",

volume = "63",

journal = "Nuclear Fusion",

issn = "0029-5515",

publisher = "IOP Publishing",

number = "11",

}

Solano, E, Birkenmeier, G, Silva, C, Delabie, E, Hillesheim, J, Baciero, A, Balboa, I, Baruzzo, M, Boboc, A, Brix, M, Bernardo, J, Bourdelle, C, Carvalho, I, Carvalho, P, Challis, C, Chernyshova, M, Chomiczewska, A, Coelho, R, Coffey, I, Craciunescu, T, de la Cal, E, de la Luna, E, Dumont, R, Dumortier, P, Fontana, M, Fontdecaba, J, Frassinetti, L, Gallart, D, Garcia, J, Giroud, C, Gromelski, W, Henriques, R, Hall, J, Ho, A, Horton, LD, Horvath, L, Jacquet, P, Jepu, I, Joffrin, E, Kappatou, A, Keeling, D, King, D, Kiptily, V, Kirov, K, Kos, D, Kowalska-Strzęciwilk, E, Lennholm, M, Lerche, E, Litherland-Smith, E, Loarte, A, Lomanowski, B, Lomas, PJ, Maggi, CF, Mailloux, J, Mantsinen, MJ, Maslov, M, Meigs, AG, Monakhov, I, Morales, RB, Nielsen, AH, Nina, D, Noble, C, Pawelec, E, Poradzinski, M, Pucella, G, Puglia, P, Réfy, D, Rasmussen, JJ, Righi, E, Rimini, FG, Robinson, T, Sertoli, M, Silburn, SA, Sips, G, Sirén, P, Štancar, Ž, Sun, HJ, Szepesi, G, Taylor, D, Tholerus, E, Thomas, B, Verdoolaege, G, Vincenzi, P, Viola, B, Vianello, N, Wilson, T & JET Contributors 2023, 'L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor', Nuclear Fusion, vol. 63, no. 11, 112011. https://doi.org/10.1088/1741-4326/acee12

TY - JOUR

T1 - L-H transition studies in tritium and deuterium-tritium campaigns at JET with Be wall and W divertor

AU - Solano, E.

AU - Birkenmeier, G.

AU - Silva, C.

AU - Delabie, E.

AU - Hillesheim, J.

AU - Baciero, A.

AU - Balboa, I.

AU - Baruzzo, M.

AU - Boboc, A.

AU - Brix, M.

AU - Bernardo, J.

AU - Bourdelle, C.

AU - Carvalho, I.

AU - Carvalho, P.

AU - Challis, C.

AU - Chernyshova, M.

AU - Chomiczewska, A.

AU - Coelho, R.

AU - Coffey, I.

AU - Craciunescu, T.

AU - de la Cal, E.

AU - de la Luna, E.

AU - Dumont, R.

AU - Dumortier, P.

AU - Fontana, M.

AU - Fontdecaba, J.

AU - Frassinetti, L.

AU - Gallart, D.

AU - Garcia, J.

AU - Giroud, C.

AU - Gromelski, W.

AU - Henriques, R.

AU - Hall, J.

AU - Ho, A.

AU - Horton, L.D.

AU - Horvath, L.

AU - Jacquet, P.

AU - Jepu, I.

AU - Joffrin, E.

AU - Kappatou, A.

AU - Keeling, D.

AU - King, D.

AU - Kiptily, V.

AU - Kirov, K.

AU - Kos, D.

AU - Kowalska-Strzęciwilk, E.

AU - Lennholm, M.

AU - Lerche, E.

AU - Litherland-Smith, E.

AU - Loarte, A.

AU - Lomanowski, B.

AU - Lomas, P.J.

AU - Maggi, C.F.

AU - Mailloux, J.

AU - Mantsinen, M.J.

AU - Maslov, M.

AU - Meigs, A.G.

AU - Monakhov, I.

AU - Morales, R.B.

AU - Nielsen, Anders Henry

AU - Nina, D.

AU - Noble, C.

AU - Pawelec, E.

AU - Poradzinski, M.

AU - Pucella, Gianluca

AU - Puglia, P.

AU - Réfy, D.

AU - Rasmussen, Jens Juul

AU - Righi, E.

AU - Rimini, F.G.

AU - Robinson, T.

AU - Sertoli, M.

AU - Silburn, S. A.

AU - Sips, G.

AU - Sirén, P.

AU - Štancar, Žiga

AU - Sun, H. J.

AU - Szepesi, G.

AU - Taylor, D.

AU - Tholerus, E.

AU - Thomas, Beth

AU - Verdoolaege, G.

AU - Vincenzi, P.

AU - Viola, Bruno

AU - Vianello, N

AU - Wilson, Thomas

AU - JET Contributors

PY - 2023

Y1 - 2023

N2 - 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, n̄e,min, increases, leading us to expect that n̄e,min(T) < n̄e,min(DT) < n̄e,min(D) < n̄e,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.

AB - 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, n̄e,min, increases, leading us to expect that n̄e,min(T) < n̄e,min(DT) < n̄e,min(D) < n̄e,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.

KW - DT

KW - Isotope

KW - JET-ILW

KW - L-H transition

KW - Power Threshold

KW - Tokamaks

KW - Tritium

U2 - 10.1088/1741-4326/acee12

DO - 10.1088/1741-4326/acee12

M3 - Journal article

AN - SCOPUS:85175398510

SN - 0029-5515

VL - 63

JO - Nuclear Fusion

JF - Nuclear Fusion

IS - 11

M1 - 112011

ER -

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

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