KARAKTERISTIK DAN FENOMENA PERUBAHAN KONSENTRASI OKSIGEN DAN NITROGEN DI UDARA DENGAN PROSES LASER-INDUCED BREAKDOWN SPECTROSCOPY (LIBS)

  • Hery Suyanto Udayana University

Abstract

Characteristics and phenomena of hydrogen, oxygen and nitrogen in the air were investigated by Laser-Induced Breakdown Spectroscopy (LIBS). Neutral atomic spectra emission of hydrogen (H I), oxygen (O I) and nitrogen (N I) were analyzed by spectrometer with CCD 14.336 pixel, 200 – 980 nm, resolution of 0.1 nm and delay time detection was set 0 till 4 µs after  100 mJ of laser radiation. The optimum condition for detecting these elements when the delay time detection was between 0.05 – 1 ?s. The data of these elements show the intensity more than 150 a.u, the S/B above of 10 and the FWHM lower than 0.7. The air composition (%), however, was changed compare to the normal condition. Nitrogen was lower than oxygen  (N = 39 %, O = 55 %, H = 5 % and 1 % for others gas).

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Published
2013-02-01
How to Cite
SUYANTO, Hery. KARAKTERISTIK DAN FENOMENA PERUBAHAN KONSENTRASI OKSIGEN DAN NITROGEN DI UDARA DENGAN PROSES LASER-INDUCED BREAKDOWN SPECTROSCOPY (LIBS). BULETIN FISIKA, [S.l.], v. 14, n. 1, p. 1-5, feb. 2013. ISSN 2580-9733. Available at: <https://ojs.unud.ac.id/index.php/buletinfisika/article/view/31295>. Date accessed: 23 may 2022.

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