37 research outputs found

    Overview of the JET ITER-like wall divertor

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    Assessment of erosion, deposition and fuel retention in the JET-ILW divertor from ion beam analysis data

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    Power exhaust by SOL and pedestal radiation at ASDEX Upgrade and JET

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    Multi-machine scaling of the main SOL parallel heat flux width in tokamak limiter plasmas

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    ELM divertor peak energy fluence scaling to ITER with data from JET, MAST and ASDEX upgrade

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    Progress in understanding disruptions triggered by massive gas injection via 3D non-linear MHD modelling with JOREK

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    3D non-linear MHD simulations of a D 2 massive gas injection (MGI) triggered disruption in JET with the JOREK code provide results which are qualitatively consistent with experimental observations and shed light on the physics at play. In particular, it is observed that the gas destabilizes a large m/n = 2/1 tearing mode, with the island O-point coinciding with the gas deposition region, by enhancing the plasma resistivity via cooling. When the 2/1 island gets so large that its inner side reaches the q = 3/2 surface, a 3/2 tearing mode grows. Simulations suggest that this is due to a steepening of the current profile right inside q = 3/2. Magnetic field stochastization over a large fraction of the minor radius as well as the growth of higher n modes ensue rapidly, leading to the thermal quench (TQ). The role of the 1/1 internal kink mode is discussed. An I p spike at the TQ is obtained in the simulations but with a smaller amplitude than in the experiment. Possible reasons are discussed

    Fracture of the anconeal process in two cats

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    Two adult Domestic Shorthaired cats were presented with acute forelimb lameness. In one case, there was a history of trauma. A fracture of the anconeal process was diagnosed on the flexed mediolateral radiographs of the elbow in both cats. The fracture was accompanied by a bony avulsion of the tricipital tendon in one animal. Both cats underwent surgical removal of the fractured anconeal process. Follow-up radiographic evaluation was available for one cat six months after treatment; radiographs showed evidence of osteoarthritis. The long-term clinical outcome, based on owner telephone follow-up conducted four and nine years postoperatively, was considered to be satisfactory
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