All Papers - UKAEA Scientific Publications

Showing 1 - 10 of 23 UKAEA Paper Results

UKAEA-CCFE-PR(23)1822023

"Experiments in high-performance JET plasmas in preparation of second harmonic ICRF heating of tritium in ITER"
- M. Mantsinen
- P. Jacquet
- E. Lerche
- D. Gallart
- K. Kirov
- P. Mantica
- D. Taylor
- D. Van Eester
- M. Baruzzo
- I. Carvalho
- C. Challis
- E. Delabie
- E. De La Luna
- R. Dumont
- P. Dumortier
- J. Eriksson
- D. Frigione
- J. Garcia
- L. Garzotti
- C. Giroud
- R. Henriques
- J. Hobirk
- A. Kappatou
- Y. Kazakov
- D. Keeling
- D. King
- V. Kiptily
- M. Lenholm
- P. Lomas
- C. Lowry
- C. Maggi
- J. Mailloux
- M. Maslov
- S. Menmuir
- I. Monakhov
- R.B. Morales
- C. Noble
- M. Nocente
- A. Patel
- G. Pucella
- C. Reux
- D. Rigamonti
- F. Rimini
- A. Sheikh
- S. Silburn
- P. Siren
- E. Solano
- Z. Stancar
- M. Tardochi
The reference ion cyclotron resonance frequency (ICRF) heating schemes for ITER deuterium-tritium (D-T) plasmas at the full magnetic field of 5.3 T are second harmonic heating of tritium and 3He minority heating. The wave-particle resonance location for these schemes coincide and are central at a wave frequency of 53 MHz at 5.3T [1]. Experiments ha…
- Published
UKAEA-CCFE-PR(23)1802023

"L-H transition studies in recent Tritium and Deuterium-Tritium campaigns at JET"
- E.R. Solano
- G. Birkenmeier
- C. Silva
- E. Delabie
- J.C. Hillesheim
- A. Baciero
- I. Balboa
- M. Baruzzo
- A. Boboc
- M. Brix
- C. Bourdelle
- I.S. Carvalho
- P. Carvalho
- C.D. Challis
- M. Chernyshova
- A. Chomiczewska
- R. Coelho
- 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
- J. Hall
- A. Ho
- L. Horvath
- P. Jacquet
- I. Jepu
- E. Joffrin
- A. Kappatou
- P.J. Lomas
- D.L. Keeling
- D.B. King
- E. Kowalska-Strzęciwilk
- M. Lennholm
- E. Lerche
- E. Litherland-Smith
- V.G. Kiptily
- K.K. Kirov
- A. Loarte
- B. Lomanowski
- 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. Réfy
- J.J. Rasmussen
- E. Righi-Steele
- F.G. Rimini
- T. Robinson
- M. Sertoli
- S.A. Silburn
- P. Sirén
- Ž. Štancar
- H.J. Sun
- G. Szepesi
- D. Taylor
- B. Thomas
- E. Tholerus
- G. Verdoolaege
- P. Vincenzi
- B. Viola
- N. Vianello
- T. Wilson
- Preprint
- Published
UKAEA-CCFE-PR(23)1442023

"Control of plasma density and isotope mix by peripheral fuelling pellets in JET D-T experiments"
- M. Valovič
- A. Boboc
- P. Carvalho
- I. Carvalho
- L. Garzotti
- F. Köchl
- J. C. Lowry
- S. Aleiferis
- C. Maggi
- P. Blatchford
- M. Fontdecaba Climent
- L. Frassinetti
- C. Olde
- R. B. Morales
- S. Nowak
- E. de la Luna
- F. Rimini
- Z. Stancar
- S. Silburn
- G. Tvalashvili
- M. Brix
- M. Vecsei
- D. Dunai
- D. Réfy
- the JET team
A dataset of baseline DT plasmas with peripheral HFS fuelling pellets has been produced on JET, in order to mimic the situtation in ITER. During the pellet ablation phase prompt particle losses due to pellet triggered ELM can be detected. Regarding pellet deposition, the data indicate that plasmoids drift velocity might be smaller than predicted…
- Preprint
UKAEA-CCFE-PR(23)1212023

"Overview of interpretive modelling of fusion performance in JET DTE2 discharges with TRANSP"
- Ž. Štancar
- K. Kirov
- F. Auriemma
- H.-T. Kim
- M. Poradzinski
- R. Sharma
- R. Lorenzini
- Z. Ghani
- M. Gorelenkova
- F. Poli
- A. Boboc
- S. Brezinsek
- P. Carvalho
- F. J. Casson
- C. Challis
- E. Delabie
- D. Van Eester
- M. Fitzgerald
- J. M. Fontdecaba
- J. Garcia
- L. Garzotti
- C. Giroud
- A. Kappatou
- Y. Kazakov
- D. King
- V. Kiptily
- D. Kos
- E. Lerche
- E. Litherland-Smith
- C. Maggi
- P. Mantica
- M. J. Mantsinen
- M. Maslov
- S. Menmuir
- M. Nocente
- J. Oliver
- S. Sharapov
- P. Siren
- E. R. Solano
- H. J. Sun
- G. Szepesi
- JET Contributors
In the paper we present an overview of interpretive modelling of a database of JET-ILW 2021 D-T discharges using the TRANSP code. Our main aim is to assess our capability of computationally reproducing the fusion performance of various D-T plasma scenarios using different external heating and D-T mixtures, and understand the performance driving mec…
- Published
UKAEA-CCFE-PR(23)092023

"Remote Infrared View of JET divertor compatible with D-T operations"
Following from the paper describing the remote wide angle viewing system compatible with Deuterium-Tritium operations. This is the second article describing a second remote line of sight, this time focusing on the imaging of the divertor region in JET. It explains in detail the optical and engineering designs of constructing an optical relay which …
- Preprint
- Published
UKAEA-CCFE-PR(23)1882022

"Mitigation of disruption electro-magnetic load with SPI on JET"
- S.N.Gerasimov
- L.R.Baylor
- A.Boboc
- I.S.Carvalho
- P.Carvalho
- I.H.Coffey
- D.Craven
- J.Flanagan
- A.Huber
- V.Huber
- S.Jachmich
- I.Jepu
- E.Joffrin
- D.Kos
- S.I.Krasheninnikov
- U.Kruezi
- M.Lehnen
- P.J.Lomas
- A.Manzanares
- M.Maslov
- A.Peacock
- P.Puglia
- S.Silburn
- F.G.Rimini
- R.D.Smirnov
- D.Shiraki
- C.Stuart
- H.Sun
- J.Wilson
- L.E.Zakharov
- JET Contributors
In 2019, the JET-ILW was equipped with a Shattered Pellet Injector (SPI) system with a wide capability to allow studies on the efficacy of shattered pellets in reducing the electro-magnetic and the thermal loads during disruptions and the avoidance/suppression of the formation of runaway electrons. The fully commissioned system became operationa…
- Preprint
UKAEA-CCFE-CP(23)402022

"Interpretative 3D MHD modelling of deuterium shattered pellet injection into a JET H-mode plasma"
- M. Kong
- E. Nardon
- M. Hoelzl
- D. Bonfiglio
- D. Hu
- U. Sheikh
- A. Boboc
- P. Carvalho
- T.C. Hender
- S. Jachmich
- K.D. Lawson
- S. Silburn
- Ž. Štancar
- R. Sweeney
- G. Szepesi
- the JOREK team
- JET contributors
Shattered pellet injection (SPI), with research started in recent years, is the current concept for the ITER disruption mitigation system (DMS) to prevent disruption-related damage. Compared with impurity SPI, pure deuterium (D2) SPI could contribute to runaway electron (RE) avoidance in ITER via a strong dilution cooling before the thermal quen…
- Preprint
UKAEA-CCFE-PR(22)482022

"SOL PROFILE AND FLUCTUATIONS IN DIFFERENT DIVERTOR RECYCLING CONDITIONS IN H-MODE PLASMAS"
- N. VIANELLO
- N. WALKDEN
- M. DUNNE
- B. LOMANOWSKI
- E. WOLFRUM
- C. TSUI
- A. STAGNI
- M. GRIENER
- B. TAL
- T. EICH
- D. REFY
- D. BRIDA
- O. FEVRIER
- M. AGOSTINI
- H. DE OLIVEIRA
- S. ALEIFERIS
- M. BERNERT
- J. BOEDO
- M. BRIX
- D. CARRALERO
- I. CARVALHO
- L. FRASSINETTI
- C. GIROUD
- A. HAKOLA
- A. HUBER
- . KARHUNEN
- J, A. KARPUSHOV
- B. LABIT
- A. MEIGS
- V. NAULIN
- T. PEREIRA
- C. PEREZ VON THUN
- H. REIMERDES
- C. THEILER
- the ASDEX Upgrade Team
- the TCV team
- the EUROfusion MST1 Team
- the JET Contributors
The evolution of SOL density profiles and fluctuations have been studied at different recycling levels in 3 different tokamaks, ASDEXUpgrade, TCV and JET, all operated in HMode. In all devices we clearly observe an increase of far SOL efolding length at high …
- Preprint
- Published
UKAEA-CCFE-PR(22)312022

"The broadening of SOL profiles in JET tritium plasma and its impact on machine operation"
- HJ. Sun
- SA. Silburn
- IS. Carvalho
- C Giroud
- G Fishpool
- GF. Matthews
- DB. King
- RB. Henriques
- DL. Keeling
- FG. Rimini
- L. Garzotti
- D. Frigione
- D. Van Eester
- D Kos
- M-L. Mayoral
- J. Mailloux
- C. Maggi
- A. Huber
- D. Douai
- PJ. Lomas
- L Morten
- M. Maslov
- K. Kirov
- P. Jacquet
- CG. Lowry
- M. Baruzzo
- C. Stuart
- J. Mitchell
- L. Horvath
- DC. McDonald
- JET Contributors
Unusually high power loads on the Beryllium limiter caused by Neutral Beam re-ionisation, and much cooler divertor target surfaces were observed during the recent JET tritium campaign. As both phenomena are driven by scrape-off layer (SOL) physics, the SOL features of 72 tritium H-mode discharges and their deuterium references have been studied. …
- Preprint
- Published
UKAEA-CCFE-PR(22)222022

"Lost Alpha Faraday Cup Foil Noise Characterization During JET Plasma Post-Processing Analysis"
Capacitive plasma pickup is a well-known and difficult problem for plasma-facing edge diagnostics. Ths problem must be addressed to ensure an accurate and robust interpretation of the real signal measurements versus noise. JET’s Faraday cup fast ion loss detector array is particularly prone to this issue and can be used as a …
- Preprint
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