All Papers - UKAEA Scientific Publications

Showing 1 - 7 of 7 UKAEA Paper Results

UKAEA-CCFE-PR(23)872020

"Isotope dependence of energy, momentum and particle confinement in tokamaks"
- H. Weisen
- C.F. Maggi
- M. Oberparleiter
- F.J. Casson
- S. Menmuir
- L Horvath
- F. Auriemma
- T.W. Bache
- N. Bonanomi
- Y. Camenen
- A. Chankin
- E. Delabie
- L. Frassinetti
- J. Garcia
- C. Giroud
- D. King
- R Lorenzini
- M. Marin
- P.A. Schneider
- P. Siren
- J. Varje
- E. Viezzer
- JET contributors
The isotope dependence of plasma transport has a significant impact on the performance of future D-T experiments in JET and ITER and eventually on the fusion gain and economics of future reactors. In preparation for future D-T operation on JET, dedicated experiments and comprehensive transport analysis were performed in H, D and H-D mixed plasma…
- Preprint
UKAEA-CCFE-CP(20)1132020

"An examination of the Neutral penetration model 1/ne,ped scaling for its validity of spatially varying neutral sources"
- J. Simpson
- D. Moulton
- C. Giroud
- F. Casson
- M. Groth
- A. Chankin
- L. Horvath
- D. S. Gahle
- F. Kochl
EDGE2D-EIRENE simulations show that for a H-mode JET discharge (92168) the dominant atomic neutral deuterium source at the separatrix originates from the inner divertor target. Within JETTO-EIRENE neutral sources are placed at the X-point and outer midplane (OMP). For fixed electron and ion temperature, transport and neutral temperature it is obser…
- Preprint
- Published
UKAEA-CCFE-PR(20)1272019

"Self-Consistent Pedestal Prediction of JET-ILW"
The self-consistent core-pedestal prediction model of a combination of EPED1 type pedestal prediction and a simple stiff core transport model is able to predict type I ELMy pedestals of a large database JET-ILW (ITER-like wall) at the similar accuracy as is obtained when the experimental global plasma b is used as input. The neutral penetration …
- Preprint
- Published
UKAEA-CCFE-CP(20)982018

"Optimization of JET-DT and ITER operation by developing an understanding of the role of low-Z impurity on the H-mode pedestal"
- C. Giroud
- N. Aiba
- F. Militello
- C. Challis
- A. Chankin
- B. Lomanowski
- D. Hatch
- J. Harrison
- D. Frigione
- D. Moulton
- S. Pamela
- F. Parra
- J. Parisi
- I. Putzai
- D. Refy
- S. Saarelma
- C. Stavrou
- B. Tal
- E. Belonohy
- S. Brezinsek
- S. Buller
- C. Bowman
- E. Delabie
- A. Field
- J. Fontdecaba
- A. Huber
- A. Meigs
- S. Menmuir
- J. Simpson
- JET Contributors
- Preprint
- Published
UKAEA-CCFE-PR(19)622019

"Isotope dependence of the type I ELMy H-mode pedestal in JET-ILW Hydrogen and Deuterium plasmas"
- L. Horvath
- C.F. Maggi
- A. Chankin
- S. Saarelma
- A.R. Field
- E. Belonohy
- A. Boboc
- G. Corrigan
- E.G. Delabie
- J. Flanagan
- L. Frassinetti
- C. Giroud
- D. Harting
- D. Keeling
- D. King
- M. Maslov
- G.F. Matthews
- S. Menmuir
- S.A. Silburn
- J. Simpson
- A.C.C Sips
- H. Weisen
- K.J. Gibson
- JET Contributors
The pedestal structure, ELM losses and linear MHD stability are analysed in a series of JET-ILW H and D type I ELMy H-mode plasmas. The pedestal pressure (pPED) is typically higher in D than in H at the same input power, with the difference mainly due to lower density in H than in D. At the same input power, the pedestal electron pres…
- Preprint
- Published
UKAEA-CCFE-PR(19)492019

"EDGE2D-EIRENE simulations of the influence of isotope effects and anomalous transport coefficients on near SOL radial electric field"
EDGE2D-EIRENE (the ‘code’) simulations show that radial electric field, Er, in the near scrape-off layer (SOL) of tokamaks can have large variations leading to a strong local E´B shear greatly exceeding that in the core region. This was pointed out in simulations of JET plasmas with varying divertor geometry, where the magnetic conf…
- Preprint
- Published
UKAEA-CCFE-PR(18)362018

"Neutral pathways and heat flux widths in vertical- and horizontal-target EDGE2D-EIRENE simulations of JET"
This paper further analyses the EDGE2D-EIRENE simulations presented by [Chankin et al (2017 Nucl. Mater. Energy 12 273], of L-mode JET plasmas in vertical-vertical (VV) and vertical-horizontal (VH) divertor configurations. As expected, the simulated outer divertor ionisation source peaks near the separatrix in VV …
- Preprint
- Published

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Browse our papers below.

"Isotope dependence of energy, momentum and particle confinement in tokamaks"

"An examination of the Neutral penetration model 1/ne,ped scaling for its validity of spatially varying neutral sources"

"Self-Consistent Pedestal Prediction of JET-ILW"

"Optimization of JET-DT and ITER operation by developing an understanding of the role of low-Z impurity on the H-mode pedestal"

"Isotope dependence of the type I ELMy H-mode pedestal in JET-ILW Hydrogen and Deuterium plasmas"

"EDGE2D-EIRENE simulations of the influence of isotope effects and anomalous transport coefficients on near SOL radial electric field"

"Neutral pathways and heat flux widths in vertical- and horizontal-target EDGE2D-EIRENE simulations of JET"

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