Study of Earth atmosphere components by Laser Spectroscopy

Authors

  • Nazer Dayob
  • Jamal Said
  • Sawsan mayya

Abstract

The aim of this work is to measure concentration of some atmosphere components

(CO2, NH3, O3, CH4) by using TDLAS (Tunable Diode Laser Absorption Spectroscopy)

under different pressure (1 atm,100 mbar,72.5 mbar,50mbar,10mbar). This work had done

by using HITRAN (HIgh Resolution TRANsmission molecular absorption data base)

database to define the density of spectral line and define the present gas by knowing the

wavenumber where absorption was happened, then  concentration of each gas in the sample

has been calculated by using optic path length inside the  multi reflections cell, deferent

pressure and intensity of spectral line.

This system was considered as LIDAR (Light Detection And Ringing) in- situe for gas

detection and concentration measuring.

 

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Published

2019-07-03

How to Cite

1.
Dayob N, Said J, mayya S. Study of Earth atmosphere components by Laser Spectroscopy. TUJ-BA [Internet]. 2019Jul.3 [cited 2024Dec.29];41(3). Available from: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/8830

Issue

Vol. 41 No. 3 (2019): العلوم الأساسية

Section

Articles

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