Results 11 to 20 of about 242,206 (161)

Composition of electron temperature gradient driven plasma turbulence in JET-ILW tokamak plasmas

Physical Review Research
This letter reports on new fundamental insights into small scale plasma turbulence that is responsible for confinement degradation on the JET tokamak. We compare the structure of electron temperature gradient (ETG) driven turbulence in the edge region of
B. Chapman-Oplopoiou, J. Walker, D. R. Hatch, T. Görler, JET contributors   +4 more
doaj   +2 more sources

Modelling of tungsten erosion and deposition in the divertor of JET-ILW in comparison to experimental findings

Nuclear Materials and Energy, 2019
The erosion, transport and deposition of tungsten in the outer divertor of JET-ILW has been studied for an H-Mode discharge with low frequency ELMs.
A Kirschner, S Brezinsek, A Huber
exaly   +3 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
exaly   +3 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 ...
A Huber, S Brezinsek, A Kirschner
exaly   +3 more sources

Qualitative effects of resistivity in JET-ILW Europed pedestal predictions

Nuclear Fusion
The effect of resistive MHD in the pedestal predictions for JET-ILW has been investigated, using the Europed workflow (Saarelma et al 2018 Plasma Phys. Control. Fusion 60 014042) with the resistive MHD stability code CASTOR (Kerner et al 1998 J.
A. Lafay-Labrosse, H. Nyström, L. Frassinetti, S. Saarelma, JET Contributors, The EUROfusion Tokamak Exploitation Team   +5 more
doaj   +2 more sources

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

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

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

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