17th International Conference on Fundamental and Applied Aspects of Physical Chemistry (Proceedings, Volume I) (2024) [B-02, pp. 49-52]
AUTHOR(S) / АУТОР(И): Ivan Traparić 
, Dragan Ranković , Biljana Stankov , Jelena Savović , Miroslav Kuzmanović , Miloje Ivković
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DOI: 10.46793/Phys.Chem24I.049T
ABSTRACT / САЖЕТАК:
The LIBS technique based on the TEA CO2 laser is optimized for obtaining narrow and intense hydrogen Balmer lines, with the aim of application for quantitative and isotopic analysis of hydrogen. In the helium atmosphere under reduced pressure (below 10 mbar), for delay times longer than 5 μs, line widths of 0.04 nm were obtained, close to the instrumental width of the spectrograph. For optimal experimental conditions, plasma diagnostics were performed using optical emission spectroscopy methods: the electron concentration from 2.5 x 1021 m-3 to 2.7 x 1020 m-3, and gas temperature from 5000 to 3500 K were obtained.
KEYWORDS / КЉУЧНЕ РЕЧИ:
ACKNOWLEDGEMENT / ПРОЈЕКАТ:
The research was funded by the Ministry of Science, Technological Development and Innovations of the Republic of Serbia, Contract numbers: 451-03-68/2022-14/200024 and 451-03-65/2024- 03/200146, and supported by the Science Fund of the Republic Serbia, Grant no. 7753287 „NOVA2LIBS4fusion“. This work was carried out under the project: „Laser induced breakdown spectroscopy for determination of LHD wall composition“ (NIFS21KLPF087) within the agreement between NIFS and the University of Belgrade.
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