Study of material response on simulated ITER disruptive plasma heat load with variable duration

Author

Litunovsky, V.N. ; Ovchinnikov, I.B. ; Drozdov, A.A. ; Kuznetsov, V.E. ; Ljublin, B.V. ; Titov, V.A.

Author_Institution

D.V. Efremov Sci. Res. Inst. of Electrophys. Apparatus, St. Petersburg, Russia

Volume

1

fYear

1995

fDate

30 Sep-5 Oct 1995

Firstpage

435

Abstract

Some results of the study of material response on plasma high heat flux load are given in the report. The high power long pulse plasma accelerator of the VIKA facility is used as source of plasma high heat flux (w_p⩽30 MJ/m²). The peculiarity of the described experiments is variation of a rectangular like pulse duration of the plasma stream (τ_p=0.09; 0.18; 0.27; 0.36 ms). Some data of the plasma parameters in a plasma-material interaction zone are given. The growth of both mass losses and crater depth with irradiation increase is fixed for Al and Cu. As a preliminary results one has a tendency for decreasing both the crack length for a “hot” (T=300°C) irradiated Al sample and mass losses for W irradiated at T=1000°C

Keywords

Tokamak devices; cracks; fusion reactor materials; fusion reactors; 1000 degC; 300 degC; Al; Cu; ITER; W; crack length; crater depth; high heat flux load; material response; plasma heat load; plasma stream; plasma-material interaction; Artificial intelligence; Inorganic materials; Plasma accelerators; Plasma density; Plasma materials processing; Plasma simulation; Plasma sources; Plasma temperature; Plasma transport processes; Predictive models;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 1995. SOFE '95. Seeking a New Energy Era., 16th IEEE/NPSS Symposium

Conference_Location

Champaign, IL

Print_ISBN

0-7803-2969-4

Type

conf

DOI

10.1109/FUSION.1995.534257

Filename

534257