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Physics Journal of the Indonesian Physical Society
http://situs.jurnal.lipi.go.id/pjhfi/   -   http://pj.hfi.fisika.net


T.J. Lie1, H. Kurniawan1, M. Pardede1, H. Suyamto1, R. Hedwig2, M.O. Tjia3, K. Kagawa4 and T. Maruyama5

1Department of Electronic Engineering, Faculty of Industrial Technique, University of Pelita Harapan
2Department of Physics, Faculty of Mathematics and Natural Sciences, Udayana University, Hardware Laboratory, Bina Nusantara University
3Department of Physics, Faculty of Mathematics and Natural Sciences, Bandung Institute of Technology
4Department of Physics, Faculty of Education and Regional Studies, Fukui University
5The Wakasa Wan Energy Research Center

Nd-YAG laser of 50 mJ energy and 8 ns pulse width was focused onto quartz sample under reduced air pressure of 2 Torr. A characteristic shock wave secondary plasma was generated. The emission spectra from the plasma clearly consists of the emission lines of H I 656.2 nm (Ha) and H I 486.1 nm (Hb) which are improbable to detect using ordinary laser ablation technique. The hydrogen emission lines of the same quality were also observed from a Sangiran Meteorite found in the soil layer of 700 thousand years old in Java Island. A detection limit of less than 5 ppm was achieved for those H emission lines in this study.

Publication : Physics Journal IPS A5 (2003) 0221 » page of Content
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Additional info : 4 pages, language English » accessed 25.380 times

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