Results 61 to 70 of about 242,206 (161)

A numerical study on the effect of dust particles on tritium deposition on plasma-facing materials

Nuclear Materials and Energy, 2022
Tritium deposition is a key issue for fusion devices. The existence of dust leads to increase of tritium deposition rates due to the large specific surface area (SSA) of dust grains. Experiments in JET-ILW have indicated that the deposition and retention
Guo-Jian Niu, Gakushi Kawamura, Qian Xu, Tao He, Fei-Fei Nian, Rong Wang, Zhong-Shi Yang, Guang-Nan Luo   +7 more
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Energy balance in JET

Nuclear Materials and Energy, 2017
In this paper we discuss results from the study of the energy balance in JET based on calculated heating energies, radiated energy from bolometry and tile calorimetry. Recent data enables us to be more confident in the numbers used and to exclude certain
G.F. Matthews, P. Bunting, S. Devaux, P. Drewelow, C. Guillemaut, D.B. King, E. Lerche, S. Silburn, G. Szepesi, V. Riccardo, V. Thompson   +10 more
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Overview of interpretive modelling of fusion performance in JET DTE2 discharges with TRANSP

Nuclear Fusion, 2023
In the paper we present an overview of interpretive modelling of a database of JET-ILW 2021 D-T discharges using the TRANSP code. The main aim is to assess our capability of computationally reproducing the fusion performance of various D-T plasma ...
Ž. Štancar, K.K. Kirov, F. Auriemma, H.-T. Kim, M. Poradziński, R. Sharma, R. Lorenzini, Z. Ghani, M. Gorelenkova, F. Poli, A. Boboc, S. Brezinsek, P. Carvalho, F.J. Casson, C.D. Challis, E. Delabie, D. Van Eester, M. Fitzgerald, J.M. Fontdecaba, D. Gallart, J. Garcia, L. Garzotti, C. Giroud, A. Kappatou, Ye.O. Kazakov, D.B. King, V.G. Kiptily, D. Kos, E. Lerche, E. Litherland-Smith, C.F. Maggi, P. Mantica, M.J. Mantsinen, M. Maslov, S. Menmuir, M. Nocente, H.J.C. Oliver, S.E. Sharapov, P. Sirén, E.R. Solano, H.J. Sun, G. Szepesi, JET Contributors   +42 more
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Beryllium migration and evolution of first wall surface composition in the JET ILW configuration

, 2013
Material migration and the resulting evolution of plasma facing surfaces were studied at the beginning of the JET ILW campaign using the singular opportunity of well-defined initial conditions with virgin Be and W wall components.
van Rooij, G, G. J. van Rooij, Loarer, T, Van Hoey, Olivier, Loarer, T., M. Reinelt, Reinelt, M, Meigs, A, O. van Hoey, van Hoey, O., Reinelt, M., Brezinsek, S., Coenen, J. W., Jachmich, Lisgod, S., Coenen, J., Krieger, K, Philipps, V, Stamp, M, Meigs, A., Ivanova, D, Ivanova, D., Lisgo, S.W., van Rooij, G.J., Coenen, J.W., Ivanova, Darya,, Stamp, M., Marsen, S, Lisgo, S. W., Jachmich, S., Brezinsek, S, van Rooij, G., Hoey, O., Jachmich, S, Philipps, V., Rooij, G., Lisgo, SW, Coenen, JW, Krieger, K., Marsen, S.   +39 more
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Operational challenges for long pulses on JET-ILW

Plasma Physics and Controlled Fusion
Abstract The typical pulse on the JET tokamak is ∼10 s during the main phase of the discharge, however long discharge operation (>30 s) is possible with sufficient preparation and care. During the last period of JET operation in 2023 long pulses in deuterium plasmas were developed to assess the sustainment of the plasma performance ...
D B King, E Lerche, X Litaudon, S Brezinsek, E Joffrin, F Auriemma, M Beldishevski, N Balshaw, M Baruzzo, A Boboc, P Card, I S Carvalho, P J Carvalho, I Coffey, P McCullen, S Dalley, E Delabie, P Dumortier, R Felton, S Gerasimov, Z Ghani, A Goodyear, N Hawkes, R B Henriques, S Hotchin, P Jacquet, I Jepu, D Keeling, D Kinna, D Kos, E Litherland-Smith, R Lobel, P J Lomas, C Lowry, J Mailloux, M Maslov, D Matveev, A Meigs, S Menmuir, J Mitchell, I Monakhov, C Noble, M Poradzinski, F Rimini, S Silburn, E R Solano, H Sun, C Srinivasan, B Thomas, D Valcarcel, R Villari, J Waterhouse, A West, I Young   +53 more
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COREDIV and SOLPS Numerical Simulations of the Nitrogen Seeded JET ILW L‐mode Discharges

, 2016
In this paper we present the comparison of simulations with the numerical codes COREDIV and SOLPS5.0 for JET L-mode discharges with ITER like wall (ILW).
Ivanova-Stanik, Irena, R. Zagörski, Wischmeier, M., I. Ivanova‐Stanik, Aho-Mantila, Leena, JET contributors, Zagorski, R., Aho-Mantila, L., L. Aho‐Mantila, Ivanova-Stanik, I., M. Wischmeier   +10 more
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Spectroscopic investigation of N and Ne seeded induced detachment in JET ITER-like wall L-modes combining experiment and EDGE2D modeling

Nuclear Materials and Energy, 2019
Modeling and experimental investigation of the distribution of seeded impurities and their influence on divertor detachment in all-metal tokamaks is critical for developing reactor-scale exhaust scenarios. In this work, the degree and operating space for
B. Lomanowski, M. Carr, A. Field, M. Groth, A.E. Jaervinen, C. Lowry, A.G. Meigs, S. Menmuir, M. O'Mullane, M.L. Reinke, C.K. Stavrou, S. Wiesen   +11 more
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Turbulent transport stabilization by ICRH minority fast ions in low rotating JET ILW L-mode plasmas [PDF]

, 2018
The first experimental demonstration that fast ion induced stabilization of thermal turbulent transport takes place also at low values of plasma toroidal rotation has been obtained in JET ILW (ITER-like wall) L-mode plasmas with high ( 3 He)-D ICRH (ion ...
Di Siena, A., P. Mantica, Van Eester, D., Mantica, P., Tsalas, M., C. Giroud, Giroud, C., E. Delabie, Johnson, T., T. Johnson, N. Bonanomi, null null, Bonanomi, N., A. Di Siena, M. Tsalas, D. Van Eester, Delabie, E., S. Menmuir, Johnson, Thomas,, Menmuir, S., E. Lerche, Lerche, E., JET Contributors, Contributors, Jet   +23 more
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N=2 ICRH of H majority plasmas in JET-ILW [PDF]

AIP Conference Proceedings, 2015
Heating single ion species plasmas with ICRF is a challenging task: Fundamental ion cyclotron heating (w = wci) suffers from the adverse polarization of the RF electric fields near the majority cyclotron resonance while second harmonic heating (w = 2wci) typically requires pre-heating of the plasma ions to become efficient.
Lerche, E, Van Eester, D, Kazakov, Y, Jacquet, P, Monakhov, I, Goniche, M, Colas, L, Rimini, F, Crombé, Kristel, Dumont, R, Kiptily, V, Santala, M   +11 more
openaire   +2 more sources

MHD marking using the MSE polarimeter optics in ILW JET plasmas [PDF]

, 2016
In this communication we propose a novel diagnostic technique, which uses the collection optics of the JET Motional Stark Effect (MSE) diagnostic, to perform polarimetry marking of observed MHD in high temperature plasma regimes.
Hender, T., Baruzzo, M., Hobirk, J., M. Baruzzo, Joffrin, E., Chapman, I., Hender, T.C., Coelho, R., J. Hobirk, Hawkes, N., D. Alves, J. Bernardo, Alves, D., N. Hawkes, P. Buratti, Alper, B., Bernardo, J., Reyes Cortes, S., S. Reyes Cortes, Buratti, P., I. Chapman, B. Alper, Challis, C., R. Coelho, T. C. Hender, E. Joffrin, C. Challis   +26 more
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