JOINT EUROPEAN TORUS 2

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  • JET2

Ion beam studies of marker tiles removed from different locations inside the JET ILW (ITER Like Wall) vessel have been measured to get the overall picture of the transport paths of impurities in the plasma and identify the zones of erosion and deposition. The transport path within JET of impurities such as C, O and metals such as Be, Ni and W eroded from the main chamber are mostly towards the inner divertor on the High Field Gap Closure tile where thick Be deposits were measured. There is a clear correlation between deposition and retention and the total amount of 2H retained during the first campaign of JET-ILW was 1.3 g for 19 h of plasma discharges. Plasma configuration have an important role on the erosion and transport of impurities influencing the final distribution of the deposits and fuel retention. The studies provided fundamental data for the validation of the materials and design of the future fusion reactors.

 

Hosting institution and funding

Hosted by Instituto de Plasmas e Fusão Nuclear of Instituto Superior Técnico, funded by the Portuguese Fundação para a Ciência e a Tecnologia [UID/FIS/50010/2013] and EUROfusion [JET2_IPH_TA_deliverable_D2-D5]

Contacts

Any request for information about the project should be addressed to
Dr. Eduardo Alves
  ealves at tecnico.ulisboa.pt

Instituto de Plasmas e Fusão Nuclear
Instituto Superior Técnico
Campus Tecnológico e Nuclear
Estrada Nacional 10 (km 139,7)
2695-066 Bobadela LRS - Portugalealvs