Numerical analysis of TDS spectra under high and low flux plasma exposure conditions

TitleNumerical analysis of TDS spectra under high and low flux plasma exposure conditions
Publication TypeJournal Article
Year of Publication2016
AuthorsP. Grigorev, L. Buzi, A. Bakaeva, D. Terentyev, G. De Temmerman, G. Van Oost, J.M Noterdaeme
JournalPhysica Scripta
Volume2016
IssueT167
Pagination014039
Abstract

A recently developed numerical model, based on the dislocation-driven nucleation of gas bubbles, is used to analyse experimental results on deuterium retention in tungsten under ITER relevant plasma exposure conditions. Focus is placed on understanding the relation between exposure temperature and flux on primary features of thermal desorption spectra: peak positions and intensities of the desorption flux. The model allows one to relate the peak positions with the size of plasma induced deuterium bubbles and envisage exposure conditions (temperature and flux) for their formation. Based on the performed analysis, dedicated experimental conditions to validate the model are proposed.

DOI10.1088/0031-8949/T167/1/014039
Division

PSI

Department

PSI-E

PID

3b2b266c70913eb5bc397ac8e9e5e81d

Alternate TitlePhys. Scr.

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