期刊
PHYSICA SCRIPTA
卷 96, 期 12, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1402-4896/ac43d6
关键词
hydrogen retention; dynamic outgassing; LIBS; reaction-diffusion
资金
- European Union's Horizon 2020 research and innovation programme [633053]
This study investigates the outgassing of hydrogen during and after plasma exposure using mass spectrometry and laser-induced breakdown spectroscopy measurements. Analytical and modeling approaches are used to describe the differences in retention and release data obtained by the two methods. Reaction-diffusion simulations demonstrate potential thermal outgassing effects caused by LIBS, and the advantages and limitations of LIBS for short-term retention analysis are discussed.
Based on the conventional model of hydrogen retention in plasma-facing components, the question of hydrogen outgassing during and after plasma exposure is addressed in relation to mass spectrometry and laser-induced breakdown sprectroscopy (LIBS) measurements. Fundamental differences in retention and release data acquired by LIBS and by mass spectrometry are described analytically and by modelling. Reaction-diffusion simulations are presented that demonstrate possible thermal outgassing effects caused by LIBS. Advantages and limitations of LIBS as a tool for analysis of short term retention are discussed.
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