Title :
Real time radon monitoring in the underground waters for earthquake prediction using laser-induced plasma spectroscopy (LIBS)
Author :
Shyeganrad, Gh R. ; Mashhadi, L.
Author_Institution :
Phys. Dept., Islamic Azad Univ., Karaj
Abstract :
Anomalous changes in radon concentration of ground water have been observed prior to certain large earthquakes. Temporal variation of radon gas concentration with probability of earthquake occurring have been previously investigated. Here we proposed a flexible method based on Laser-induced plasma spectroscopy (LIPS) for earthquake prediction by real time measurement concentration of radon gas solution in the underground water. Using fundamental harmonic Q-switched Nd:YAG laser, radon concentration fluctuation in the under ground water can be analyzed via observation of radon emission at 705.5 and 745 nm.
Keywords :
earthquakes; geophysical equipment; groundwater; laser beam applications; LIPS; earthquake prediction; ground water; harmonic Q-switched Nd:YAG laser; laser-induced plasma spectroscopy; radon concentration; radon gas concentration; real time measurement; Earthquakes; Fluctuations; Gas lasers; Laser modes; Laser transitions; Lips; Monitoring; Plasma measurements; Seismic measurements; Spectroscopy;
Conference_Titel :
Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4244-1929-6
Electronic_ISBN :
0730-9244
DOI :
10.1109/PLASMA.2008.4591094
