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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 129-132 |
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Zarei farani M, Parvin P, Gholami S, Zare Z, Jafargholi A. LIBS analysis and comparison of the copper sample in the simulated Mars and Earth gaseous atmosphere. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :129-132
URL: http://opsi.ir/article-1-1944-en.html
URL: http://opsi.ir/article-1-1944-en.html
LIBS analysis and comparison of the copper sample in the simulated Mars and Earth gaseous atmosphere
1- Department of physics , Amirkabir University of Technology
Abstract: (1719 Views)
In this paper, we have attempted using laser induced breakdown spectroscopy (LIBS) of pure copper as target inside a vacuum chamber under simulated Mars and Earth atmospheres at pressures ranging from laboratory pressure to near atmospheric pressure. At Martian atmospheric pressure, the emission spectra of plasma derived from copper sample were higher than those of Earth's atmosphere. Also, the changes in plasma parameters of the sample were quantitatively investigated in terms of intensity, temperature, electron density and ionization degree and the results are plotted in graphs. At pressure 10 mbar that is Mars typical pressure and with 100 mJ laser tap its observed ionize peaks in spectrum when ionization degree is high.
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