S. Markelj (Institut "Jožef Stefan"): From fusion devices to laboratory studies to understand hydrogen isotope interaction with materials

dr. S. Markelj
(Institut „Jožef Stefan“)

From fusion devices to laboratory studies to
understand hydrogen isotope interaction with
materials

 

Povzetek / Abstract:

Hydrogen interaction with materials is vital to many fields of

research. However, thermonuclear fusion has set the biggest

challenge to experiment and theory. There, a macroscopic

understanding of the phenomena is needed for the harsh

environment in the future fusion reactor with 14 MeV neutron

irradiation, helium accumulation and hydrogen isotope (HI)

implantation, taking place at the same time and mutually

influencing each other. I will focus on tungsten, the material

chosen because of its good thermal conductivity, high melting

point, low sputtering yield and low HI retention. I will present

examples of laboratory studies needed to understand the

processes of HI interaction on the surface and in the bulk of

irradiation damaged tungsten that will enable us to extrapolate

the current results to the extreme fusion conditions.