Results 21 to 30 of about 451,392 (162)

Modeling of plasma facing component erosion, impurity migration, dust transport and melting processes at JET-ILW

Nuclear Fusion
An overview of the modeling approaches, validation methods and recent main results of analysis and modeling activities related to the plasma-surface interaction (PSI) in JET-ILW experiments, including the recent H/D/T campaigns, is presented in this ...
I. Borodkina, D.V. Borodin, D. Douai, J. Romazanov, E. Pawelec, E. de la Cal, H. Kumpulainen, S. Ratynskaia, L. Vignitchouk, D. Tskhakaya, A. Kirschner, E. Lazzaro, A. Uccello, S. Brezinsek, T. Dittmar, M. Groth, A. Huber, E. Thoren, G. Gervasini, F. Ghezzi, F. Causa, A. Widdowson, K. Lawson, D. Matveev, S. Wiesen, L. Laguardia, JET Contributors   +26 more
doaj   +2 more sources

Determination of tungsten sources in the JET-ILW divertor by spectroscopic imaging in the presence of a strong plasma continuum

Nuclear Materials and Energy, 2019
The identification of the sources of atomic tungsten and the measurement of their radiation distribution in front of all plasma-facing components has been performed in JET with the help of two digital cameras with the same two-dimensional view, equipped ...
Petter Strom, Gennady Sergienko, Andreas Kirschner   +2 more
exaly   +3 more sources

Heating D ions to optimal D–T fusion energies in JET-ILW

Nuclear Fusion
In JET-ILW, beam-target reactions contribute to a large fraction of the fusion power generated in deuterium–tritium (D–T) plasmas, with core ion temperatures of 10–12 keV and large neutral-beam injection (NBI) power.
E. Lerche, M. Maslov, P.H. Jacquet, I. Monakhov, D. King, D. Keeling, C.D. Challis, D. Van Eester, P. Mantica, C. Maggi, J. Garcia, F. Auriemma, R. Coelho, I. Coffey, A. Chomiczewska, E. Delabie, R. Dumont, P. Dumortier, J. Eriksson, J. Ferreira, M. Fitzgerald, Z. Ghani, N. Hawkes, J. Hobirk, P.H. Huynh, T. Johnson, A. Kappatou, Y. Kazakov, V. Kiptily, K. Kirov, M. Lennholm, E. de la Luna, J. Mailloux, M. Marin, G. Matthews, S. Menmuir, J. Mitchell, M. Nocente, J. Ongena, E. Parr, A. Patel, G. Pucella, D. Rigamonti, F. Rimini, M. Schneider, S. Silburn, M. Salewski, E.R. Solano, Z. Stancar, M. Tardocchi, M. Valisa, N. Vianello, D. Yadykin, JET Contributors, The Eurofusion Tokamak Exploitation Team   +54 more
doaj   +2 more sources

Comparison of JET inner wall erosion in the first three ITER-like wall campaigns

Nuclear Materials and Energy, 2021
The net erosion of material from recessed areas of the JET main chamber inner wall during the first three ITER-like wall (JET-ILW) campaigns was studied using long-term samples with Be and W marker layers.
S. Krat, M. Mayer, J.P. Coad, C.P. Lungu, K. Heinola, A. Baron-Wiechec, I. Jepu, A. Widdowson   +7 more
doaj   +1 more source

Overview of tritium retention in divertor tiles and dust particles from the JET tokamak with the ITER-like wall

Nuclear Fusion, 2023
Divertor tiles after Joint European Torus-ITER like wall (JET-ILW) campaigns and dust collected after JET-C and JET-ILW operation were examined by a set of complementary techniques (full combustion and radiography) to determine the total, specific and ...
Y. Torikai, G. Kikuchi, A. Owada, S. Masuzaki, T. Otsuka, N. Ashikawa, M. Yajima, M. Tokitani, Y. Oya, S.E. Lee, Y. Hatano, N. Asakura, T. Hayashi, M. Oyaidzu, J. Likonen, A. Widdowson, M. Rubel, JET Contributors   +17 more
doaj   +1 more source

Mixed hydrogen-deuterium plasmas on JET ILW [PDF]

Nuclear Fusion, 2020
A study of mixed hydrogen-deuterium H-mode plasmas has been carried out in JET-ILW to strengthen the physics basis for extrapolations to JET D-T operation and to support the development of strategies for isotope ratio control in future experiments. Variations of input power, gas fuelling and isotopic mixture were performed in H-mode plasmas of the same
D.B. King, E. Viezzer, I. Balboa, M. Baruzzo, E. Belonohy, J. Buchanan, I.S. Carvalho, K. Cave-Ayland, C.D. Challis, I. Coffey, E.G. Delabie, L. Garzotti, S. Hall, J.C. Hillesheim, L. Horvath, E. Joffrin, D. Keeling, K. Kirov, C.F. Maggi, M. Maslov, S. Saarelma, S. Silburn, E.R. Solano, D. Valcarcel, JET contributors   +24 more
openaire   +3 more sources

Application of automated and robotically deployed in situ X‐ray fluorescence analysis for nuclear waste management

Journal of Field Robotics, Volume 39, Issue 8, Page 1205-1217, December 2022., 2022
Abstract Laboratory and synchrotron X‐ray fluorescence (XRF) analysis has both served as mainstay rapid and quantitative elemental analysis techniques for decades, attaining parts per million sensitivities for the majority of elements. Formerly, XRF was the reserve of large X‐ray generating systems and national facilities.
Samuel R. White, Peter G. Martin, David A. Megson‐Smith, Thomas B. Scott   +3 more
wiley   +1 more source

ICRH options for JET-ILW DTE2 operation [PDF]

AIP Conference Proceedings, 2020
Ion cyclotron resonance heating (ICRH) plays an important role in high performance JET-ILW plasma discharges, both for keeping the heavy impurities away from the plasma centre as for increasing the core ion temperature to boost fusion performance. While the former is needed in all high-performance discharges for steady state operation, the latter will ...
E. Lerche, D. Van Eester, P. Jacquet, F. Casson, Y. Baranov, P. Dumortier, D. Gallart, J. Graves, P. Huynh, T. Johnson, Y. Kazakov, V. Kiptily, K. Kirov, M. Machielsen, M. Mantsinen, I. Monakhov, J. Ongena   +16 more
openaire   +1 more source

Implementation and validation of guiding centre approximation into ERO2.0

Contributions to Plasma Physics, Volume 62, Issue 5-6, June‐July 2022., 2022
Abstract The Monte‐Carlo code ERO2.0 uses full orbit resolution to follow impurity particles throughout the plasma volume to determine the local erosion and deposition fluxes on the plasma‐facing components of fusion devices in magnetic confinement fusion.
Sebastian Rode, Juri Romazanov, Dirk Reiser, Sebastijan Brezinsek, Christian Linsmeier, Alexander Pukhov   +5 more
wiley   +1 more source

ICRH for core impurity mitigation in JET-ILW [PDF]

AIP Conference Proceedings, 2015
Ion cyclotron resonance frequency (ICRF) heating has been an essential component in the development of high power H-mode scenarios in JET-ILW. The steps that were taken for the successful use of ICRF heating in terms of enhancing the power capabilities and optimizing the heating performance in view of core impurity mitigation in these experiments will ...
Lerche, E., Goniche, M., Jacquet, P., Van Eester, D., Bobkov, V., Colas, L., Monakhov, I., Rimini, F., Czarnecka, A., Crombé, K., Dumont, R., Hobirk, J., Kazakov, Y., Mayoral, M., Meneses, L., Mlynar, J., Noble, C., Nunes, I., Ongena, J., Petrzilka, V., Reich, M., Santala, M., Shaw, A., Tsalas, M.   +23 more
openaire   +2 more sources