Ion beam analysis methods in the studies of plasma facing materials in controlled fusion devices

• Application of ion beam analysis techniques in the studies of material transport and fuel inventory in the controlled fusion devices is exemplified. Enhanced proton scattering on the carbon isotopes C-12(p,p)C-12, C-13(p,p)C-13 and secondary ion mass spectrometry allowed for determination of carbon erosion and re-deposition on the wall components following the experiments with a tracer ((CH4)-C-13) injection into the plasma edge at the TEXTOR tokamak. For the assessment of the deuterium fuel accumulation in the plasma facing components depth profiling by means of nuclear reaction analysis, He-3(d,p)He-4, was performed. Advantages and limitations of those nuclear methods in solving experimental problems are addressed.

Keyword

ion beam analysis

erosion

deposition

hydrogen inventory

tokamak

deuterium

erosion

textor

penetration

deposition

surfaces

limiters

Publication and Content Type

ref (subject category)

art (subject category)