Jonathan Marc Philippe Faustin

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Fusion performance in tokamaks hinges critically on the efficacy of the edge transport barrier (ETB) in suppressing energy losses. The new concept of 'fingerprints' is introduced to identify the instabilities that cause transport losses in the ETBs of many ...

The three-dimensional VMEC equilibrium solver has been adapted to numerically investigate the approximate toroidal rotation model we have derived. We concentrate our applications on the simulation of JET snakes and MAST long-lived modes under free boundary ...

The relaxation of the constraint of periodicity imposed by the external confining magnetic field coils in a nominally 4-field period Helias Advanced Stellarator configuration produces weak periodicity-breaking deformations of the plasma. The corrugations a ...

Data on erosion and melting of beryllium upper limiter tiles, so-called dump plates (DP), are presented for all three campaigns in the JET tokamak with the ITER-like wall. High-resolution images of the upper wall of JET show clear signs of flash melting on ...

A power-balance model, with radiation losses from impurities and neutrals, gives a unified description of the density limit (DL) of the stellarator, the L-mode tokamak, and the reversed field pinch (RFP). The model predicts a Sudo-like scaling for the stel ...

Post mortem analysis shows that mid and high atomic number metallic impurities are present in deposits on JET plasma facing components with the highest amount of Ni and W, and therefore the largest sink, being found at the top of the inner divertor. Source ...

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 pass ...

Selected set of samples from JET ITER-Like Wall (JET-ILW) divertor tiles exposed both in 2013-2014 and 2011-2014 has been analysed using Thermal Desorption Spectrometry (TDS). The deuterium (D) amounts obtained with TDS were compared with Ion Beam Analysis ...

In plasmas heated with deuterium beams a deficit of the expected fusion neutron rate is an indicator of the deterioration of the fast-ion confinement, caused, for instance, by magnetohydrodynamic instabilities. The capability of predicting this deficit dur ...

Hot spots on the divertor tiles at JET result in overestimation of the tile surface temperature which causes unnecessary termination of pulses. However, the appearance of hot spots can also indicate the condition of the divertor tile surfaces. To analyse t ...

Jonathan Marc Philippe Faustin

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Gyrokinetic analysis and simulation of pedestals to identify the culprits for energy losses using 'fingerprints'

Free boundary equilibrium in 3D tokamaks with toroidal rotation

Stellarator nonlinearly saturated periodicity-breaking ideal magnetohydrodynamic equilibrium states

Beryllium melting and erosion on the upper dump plates in JET during three ITER-like wall campaigns

A power-balance model of the density limit in fusion plasmas: application to the L-mode tokamak

Deposition of impurity metals during campaigns with the JET ITER-like Wall

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

Investigation of deuterium trapping and release in the JET ITER-like wall divertor using TDS and TMAP

Simulation of neutron emission in neutral beam injection heated plasmas with the real-time code RABBIT

Analysis of the outer divertor hot spot activity in the protection video camera recordings at JET

Modelling of ICRF fast ion generation in 2D and 3D plasma configurations