Results 11 to 20 of about 166 (115)

ICRH physics and technology achievements in JET-ILW [PDF]

EPJ Web of Conferences, 2017
ICRH was extensively used in the 2015-16 JET-ILW (ITER like wall) experimental campaign; bulk heating together with high-Z impurity chase-out from plasma centre importantly contributed to the good DD fusion performance obtained recently in JET.
Jacquet P., Van Eester D., Lerche E., Bobkov V., Blackman T., Colas L., Challis C., Czarnecka A., Dumortier P., Frigione D., Durodié F., Garzotti L., Goniche M., Graves J., Kazakov Y., Kirov K., Klepper C. C., Krawczyk N., Krivska A., Mantsinen M., Monakhov I., Nunes I., Ongena J., Reinke M., Rimini F., Zhang W.   +25 more
doaj   +5 more sources

Sawtooth pacing with on-axis ICRH modulation in JET-ILW [PDF]

EPJ Web of Conferences, 2017
A novel technique for sawteeth control in tokamak plasmas using ion-cyclotron resonance heating (ICRH) has been developed in the JET-ILW tokamak [2].
Lerche E., Lennholm M., Carvalho I. S., Dumortier P., Durodie F., Van Eester D., Graves J., Jacquet Ph., Murari A.   +8 more
doaj   +5 more sources

Tritium removal from JET-ILW after T and D–T experimental campaigns

Nuclear Fusion, 2023
After the second Deuterium–Tritium Campaign (DTE2) in the JET tokamak with the ITER-Like Wall (ILW) and full tritium campaigns that preceded and followed after the DTE2, a sequence of fuel recovery methods was applied to promote tritium removal from wall
D. Matveev, D. Douai, T. Wauters, A. Widdowson, I. Jepu, M. Maslov, S. Brezinsek, T. Dittmar, I. Monakhov, P. Jacquet, P. Dumortier, H. Sheikh, R. Felton, C. Lowry, D. Ciric, J. Banks, R. Buckingham, H. Weisen, L. Laguardia, G. Gervasini, E. de la Cal, E. Delabie, Z. Ghani, J. Gaspar, J. Romazanov, M. Groth, H. Kumpulainen, J. Karhunen, S. Knipe, S. Aleiferis, T. Loarer, A. Meigs, C. Noble, G. Papadopoulos, E. Pawelec, S. Romanelli, S. Silburn, E. Joffrin, E. Tsitrone, F. Rimini, C.F. Maggi, JET Contributors   +41 more
doaj   +7 more sources

Beryllium global erosion and deposition at JET-ILW simulated with ERO2.0

Nuclear Materials and Energy, 2019
The recently developed Monte-Carlo code ERO2.0 is applied to the modelling of limited and diverted discharges at JET with the ITER-like wall (ILW). The global beryllium (Be) erosion and deposition is simulated and compared to experimental results from ...
J. Romazanov, S. Brezinsek, D. Borodin, M. Groth, S. Wiesen, A. Kirschner, A. Huber, A. Widdowson, M. Airila, A. Eksaeva, I. Borodkina, Ch. Linsmeier   +11 more
doaj   +13 more sources

Pedestal structure, stability and scalings in JET-ILW: the EUROfusion JET-ILW pedestal database [PDF]

Nuclear Fusion, 2020
Abstract The EUROfusion JET-ILW pedestal database is described, with emphasis on three main issues. First, the technical aspects are introduced, including a description of the data selection, the datasets, the diagnostics used, the experimental and theoretical methods implemented and the main definitions.
Frassinetti, L., Saarelma, S., Verdoolaege, G., Groth, M., Hillesheim, J. C., Bilkova, P., Bohm, P., Dunne, M., Fridström, R., Giovannozzi, E., Imbeaux, F., Labit, B., De La Luna, E., Maggi, C., Owsiak, M., Scannell, R., JET Contributors   +16 more
openaire   +5 more sources

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

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

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   +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

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