Analysis of deposited layers on plasma facing components by laser-induced breakdown spectroscopy: Towards ITER tritium inventory diagnostics

2011 ◽  
Vol 415 (1) ◽  
pp. S1187-S1190 ◽  
Author(s):  
L. Mercadier ◽  
J. Hermann ◽  
C. Grisolia ◽  
A. Semerok
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Plasma Facing Components ◽  
Laser Induced Breakdown

Detecting Dust on Plasma-Facing Components in a Next-Step Tokamak Using a Laser-Induced Breakdown Spectroscopy Technique

2002 ◽  
Vol 41 (1) ◽  
pp. 32-43 ◽  
Author(s):  
Gennadij T. Razdobarin ◽  
Gianfranco Federici ◽  
Vladimir M. Kozhevin ◽  
Eugeny E. Mukhin ◽  
Vladimir V. Semenov ◽  
...  
Keyword(s):  
Laser Induced Breakdown Spectroscopy ◽  
Spectroscopy Technique ◽  
Breakdown Spectroscopy ◽  
Plasma Facing Components ◽  
Laser Induced Breakdown

One-point calibration laser-induced breakdown spectroscopy for the quantitative analysis of EAST-like plasma-facing materials

2022 ◽  
Author(s):  
Xue Bai ◽  
Ran Hai ◽  
Zhonglin He ◽  
Xueyan Wang ◽  
Ding Wu ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Plasma Facing Components ◽  
Magnetically Confined ◽  
Elemental Analyses ◽  
Laser Induced Breakdown ◽  
Plasma Facing Materials

Quantitative in-situ elemental analyses of the impure deposited layer on the plasma-facing components (PFCs) of magnetically confined fusion devices such as EAST are crucial and challenging. Laser-induced breakdown spectroscopy (LIBS)...

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

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