Mr
Takuya Nagasaka
(National Institute for Fusion Science)
10/26/18, 10:45 AM
MPT - Materials Physics and Technology
Oral
The National Institute for Fusion Science (NIFS) developed the NIFS-HEAT in collaboration with Japanese universities. Previous heats exhibited brittle fracture of weld joints and cracking during tubing fabrication at room temperature, due to ductility loss caused by interstitial impurities, such as C, N and O. The total of interstitial impurity level of NH2 is almost half that of the US heat....
Dr
Rui Ding
(Institute of Plasma Physics, Chinese Academy of Sciences)
10/26/18, 11:05 AM
MPT - Materials Physics and Technology
Oral
The 3D Monte Carlo code ERO taking into account a material mixing surface model has been used to simulate tungsten (W) erosion and migration on EAST with an upper full W divertor and DIII-D with toroidally continuous W rings embedded in the divertor target. Modeling shows that the transport of carbon (C) impurities not only dominates the W sputtering source but also determines the overall...
Dr
Padivattathumana N. Maya
(ITER-India, Institute for Plasma Research, Bhat, Gandhinagar)
10/26/18, 11:25 AM
MPT - Materials Physics and Technology
Oral
Tungsten has emerged as divertor-plasma-facing material in fusion reactors due to its excellent thermal and mechanical properties as well as low tritium affinity. It is therefore essential to understand the behavior of tungsten in reactor-like conditions from the point of view of radiation damage and fuel retention. There is already a world-wide effort in creating a database of radiation...
Dr
Angel Ibarra
(CIEMAT)
10/26/18, 11:45 AM
MPT - Materials Physics and Technology
Oral
The need of a neutron source for the qualification of materials to be used in future fusion power reactors have been recognized in the European (EU) fusion programme since many years. The construction and exploitation of this facility is presently considered to be in the critical path of DEMO. This issue prompted the EU to launch activities for the design and engineering of the IFMIF-DONES...
Dr
Mark Gilbert
(CCFE)
10/26/18, 12:05 PM
SEE - Safety, Environmental and Economic Aspects of Fusion
Oral
Waste-production predictions for the future demonstration fusion power plant (DEMO) are necessary to produce an accurate picture of the likely environmental and economic costs of radioactive waste disposal at end-of-life (EOL). Even during the conceptual stage of DEMO design it is important to perform waste assessment so as to avoid potential surprises caused by design flaws that could lead...
