Towards ps-LIBS tritium measurements in W/Al materials

Arnaud Bultel (1) , Vincent Morel (1) , Aurélien Favre (1) , Gilles Godard (1) , A. Benyagoub (2, 3) , Isabelle Monnet (3) , Alexandre Sémérok (4) , Maria Dinescu (5) , Sabina Markelj (6) , Philippe Magaud (7) , Christian Grisolia (7)

1 CORIA - Complexe de recherche interprofessionnel en aérothermochimie
2 CIMAP - UMR 6252 - Centre de recherche sur les Ions, les MAtériaux et la Photonique
3 MADIR - Matériaux, Défauts et IRradiations
4 SEARS - Service d'études analytiques et de réactivité des surfaces
5 INFLPR - National Institute for Lasers, Plasma, and Radiation Physics [Magurele-Ilfov]
6 IJS - Jozef Stefan Institute [Ljubljana]
7 IRFM - Institut de Recherche sur la Fusion par confinement Magnétique

This communication deals with experimental results crucial for the sizing of picosecond LIBS measurements dedicated to the determination of tritium density profiles in the plasma facing components. Ablation properties in single pulse on aluminum (considered as a surrogate of beryllium) and tungsten have been obtained for 532 and 1064 nm picosecond laser pulses. Then, double pulse experiments have been performed to estimate the role played by the second pulse on the spectral radiance observed for lines representative of the ionization degree of the plasma and possible observation of low radiance lines.

Mots clés: Mf 52; 50; Jm 52; 25; Os; 52; 38

Domaines: Sciences de l'ingénieur [physics]

Arnaud Bultel, Vincent Morel, Aurélien Favre, Gilles Godard, A. Benyagoub, et al.. Towards ps-LIBS tritium measurements in W/Al materials. Fusion Engineering and Design, 2019, 146, pp.1971 - 1974. ⟨10.1016/j.fusengdes.2019.03.079⟩. ⟨hal-03058530⟩