Measurements of deuterium retention and surface elemental composition with double pulse laser induced breakdown spectroscopy

Salvatore Almaviva, Luisa Caneve, Francesco Colao, Giorgio Maddaluno, Natalia Krawczyk, Agata Czarnecka, Pawel Gasior, Monica Kubkowska, Michal Lepek

Research output: Contribution to conferencePaper

7 Citations (Scopus)

Abstract

Estimating the tritium amount retained in the plasma facing components and their surface layer composition is of crucial importance for ITER. Laser-induced breakdown spectroscopy (LIBS) is an analytical technique suitable for in situ measurements of both these quantities. For improving its sensitivity, the double pulse (DP) variant can be used, instead of the standard single pulse (SP). In this work Mo samples coated with 1.5-1.8 μm thick W-Al (as a proxy for Be) mixed layer, with co-deposited deuterium were analyzed under vacuum (∼5 10-5mbar) by SP and DP LIBS, showing enhancement of the spectral intensity for the latter. Calibration free method was applied to the LIBS data for getting the elemental concentration of W and Al. Results are in satisfactory agreement with those obtained from preliminary, ion beam analysis measurements. Deuterium concentration was tentatively estimated by accounting for the intensity ratio between Dα and nearby WI lines.
Original languageEnglish
DOIs
Publication statusPublished - 25 Jan 2016
Externally publishedYes
Event15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015 - Aix-en-Provence, France
Duration: 25 Jan 2016 → …

Conference

Conference15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015
CountryFrance
CityAix-en-Provence
Period25/1/16 → …

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

Cite this

Almaviva, S., Caneve, L., Colao, F., Maddaluno, G., Krawczyk, N., Czarnecka, A., Gasior, P., Kubkowska, M., & Lepek, M. (2016). Measurements of deuterium retention and surface elemental composition with double pulse laser induced breakdown spectroscopy. Paper presented at 15th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2015, Aix-en-Provence, France. https://doi.org/10.1088/0031-8949/T167/1/014043