Naslov
Effects of ambient gases on LIBS of metallic alloys

Autori
Bišćan, Marijan ; Kregar, Zlatko ; Orlić, Maja ; Jelovica Badovinac, Ivana ; Orlić, Nada ; Milošević, Slobodan

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Programme and Book of Abstracts, 20th International Scientific meeting on Vacuum science and techniques / Mozetič, Miran ; Vesel, Alenka - Ljubljana : Slovenian Society for Vacuum Technique (DVTS), 2013, 27-27

ISBN
978-961-92989-5-4

Skup
20th International Scientific meeting on vacuum science and technique

Mjesto i datum
Jeruzalem, Slovenija, 09.05.2013. - 10.05.2013

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
LIBS; metallic alloy

Sažetak
Laser induced breakdown spectroscopy (LIBS) is a nonstandard diagnostic method used for determining the composition of a sample. The measured results can be either qualitative or quantitative, depending on availability of calibration data. Usually, conducting LIBS experiments under atmospheric conditions is cumbered with nitrogen due to its rich molecular and atomic spectral emission which tends to mask other relevant spectral features. Therefore, the measurements have been performed in mixed ambient gases (Ar, He, N2, O2). Another benefit of using controlled atmosphere is the enhancement of emission signal. For some applications this means that lower fluence can be used thus minimizing the ablation damage on the sample surface. Here, we have used LIBS for determining which chemical elements are present in certain metallic alloys (coins). Results show that while qualitative data is easily achievable, quantitative data is less reliable, and for that reason complete plasma diagnostics is needed.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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