RT - Journal Article T1 - The effect of atmospheric Rn trace decay on Cu target characteristic lines in laser induced breakdown spectroscopy JF - opsi YR - 2014 JO - opsi VO - 20 IS - 0 UR - http://opsi.ir/article-1-143-en.html SP - 237 EP - 240 K1 - Laser Induced Breakdown Spectroscopy K1 - Radon K1 - Characteristic Emission Spectra K1 - Radon\'s Half-Life AB - Several characteristic emission lines due to the metal target (Cu) were investigated in the presence of radon trace in the atmospheric air using Q-SW Nd:YAG laser induced plasma within the irradiation control chamber. Regarding the previous experiments the emission lines of metal species in (Rn+air) are noticeably enhanced respect to those in the synthetic air, while those peak intensities instantaneously decreases due to radon decay, such that the radon's half-life can be determined by an optical method too. Here we made an attempt to utilize optical methods in order to determine nuclear characteristics accordingly. LA eng UL http://opsi.ir/article-1-143-en.html M3 ER -