Nick Balshaw

Operational challenges for long pulses on JET-ILW

D. King, E. Lerche, X. Litaudon, S. Brezinsek et autres

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 …

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JET machine operations in T&D-T

E. Abdelrahman, Azizah Abdul Hamid, N. Abid, K. Abraham et autres

Abstract JET, the world’s largest operating tokamak with unique Be/W wall and tritium handling capability, completed a Deuterium-Tritium (D-T) campaign in 2021 (Maggi et al 29th Fusion Energy Conf.) following a decade of preparatory experiments, dedicated enhancements, technical rehearsals and training (Horton …

ICRH operations during the JET tritium and DTE2 campaigns

Philippe Jacquet, P. Dumortier, E. Lerche, Igor Monakhov et autres

Abstract The JET-ILW pure tritium and deuterium–tritium (DTE2) experimental campaigns took place in 2021–2022. Tritium (T) and deuterium–tritium (D–T) operations present challenges not encountered in present day tokamaks (Horton et al 2016 Fusion Eng. Des. 109–111 925–36). This contribution focuses on ion …

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Overview of T and D–T results in JET with ITER-like wall

Domenico Abate, N. Abid, Paulo Abreu, O. Adabonyan et autres

Abstract In 2021 JET exploited its unique capabilities to operate with T and D–T fuel with an ITER-like Be/W wall (JET-ILW). This second major JET D–T campaign (DTE2), after DTE1 in 1997, represented the culmination of a series of JET enhancements—new fusion …

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A control oriented strategy of disruption prediction to avoid the configuration collapse of tokamak reactors

Andrea Murari, Riccardo Rossi, T. Craciunescu, Jesús Vega et autres

The objective of thermonuclear fusion consists of producing electricity from the coalescence of light nuclei in high temperature plasmas. The most promising route to fusion envisages the confinement of such plasmas with magnetic fields, whose most studied configuration is the tokamak. Disruptions …

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Remote infrared view of JET divertor compatible with D-T operations

Itziar Balboa, Eric A. Rose, G.F. Matthews, D. Croft et autres

Abstract A remote viewing system located outside the biological shield wall to image the divertor region in JET is presented here. This paper focuses on the optical and mechanical designs of the installation of a line of sight which is capable of …

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Remote wide angle view broad wavelength viewing system compatible with D-T operations in JET

Itziar Balboa, Eric A. Rose, G.F. Matthews, D. Croft et autres

Abstract Imaging diagnostics in Joint European Torus have become essential in the study of plasma wall interactions and the protection of the plasma facing components. During deuterium operations, the location of these diagnostics was at close proximity to the vessel. However, for …

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Enhanced performance in fusion plasmas through turbulence suppression by megaelectronvolt ions

S. Mazzi, Jeronimo Garcia, D. Zarzoso, Ye. O. Kazakov et autres

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Disruption prediction with artificial intelligence techniques in tokamak plasmas

Jesús Vega, Andrea Murari, S. Dormido-Canto, Giuseppe A. Ratta et autres

In nuclear fusion reactors, plasmas are heated to very high temperatures of more than 100 million kelvin and, in so-called tokamaks, they are confined by magnetic fields in the shape of a torus. Light nuclei, such as deuterium and tritium, undergo a …

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Overview of JET results for optimising ITER operation

J. Mailloux, N. Abid, K. Abraham, Paulo Abreu et autres

Abstract The JET 2019–2020 scientific and technological programme exploited the results of years of concerted scientific and engineering work, including the ITER-like wall (ILW: Be wall and W divertor) installed in 2010, improved diagnostic capabilities now fully available, a major neutral beam …

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Overview of the JET preparation for deuterium–tritium operation with the ITER like-wall

E. Joffrin, S. Abduallev, M. Abhangi, Paulo Abreu et autres

Abstract For the past several years, the JET scientific programme (Pamela et al 2007 Fusion Eng. Des. 82 590) has been engaged in a multi-campaign effort, including experiments in D, H and T, leading up to 2020 and the first experiments with …

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Overview of the JET results in support to ITER

X. Litaudon, S. Abduallev, M. Abhangi, Paulo Abreu et autres

Documento escrito por un elevado número de autores/as, sólo se referencia el/la que aparece en primer lugar y los/as autores/as pertenecientes a la UC3M.

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