Investigation of materials for fusion power reactors

4th International Workshop & Summer School on Plasma Physics 2010

Bouhaddane, A.^1 ; Slugen, V.^1 ; Sojak, S.^1 ; Veterníková, J.^1 ; Petriska, M.^1 ; Bartoová, I.^1

Department of Nuclear Physics and Technology, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkoviova 3, 812 19 Bratislava 1, Slovakia^1

关键词: Chemical compositions;    Experimental investigations;    Fusion power reactors;    Metals and alloys;    Microstructure changes;    Nuclear facilities;    Positron annihilation spectroscopy (PAS);    Radiation degradation;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/516/1/012024/pdf
DOI  :  10.1088/1742-6596/516/1/012024

来源: IOP

【 摘 要 】

The possibility of application of nuclear-physical methods to observe radiation damage to structural materials of nuclear facilities is nowadays a very actual topic. The radiation damage to materials of advanced nuclear facilities, caused by extreme radiation stress, is a process, which significantly limits their operational life as well as their safety. In the centre of our interest is the study of the radiation degradation and activation of the metals and alloys for the new nuclear facilities (Generation IV fission reactors, fusion reactors ITER and DEMO). The observation of the microstructure changes in the reactor steels is based on experimental investigation using the method of positron annihilation spectroscopy (PAS). The experimental part of the work contains measurements focused on model reactor alloys and ODS steels. There were 12 model reactor steels and 3 ODS steels. We were investigating the influence of chemical composition on the production of defects in crystal lattice. With application of the LT 9 program, the spectra of specimen have been evaluated and the most convenient samples have been determined.