A laser-induced fluorescence method for detecting iodine-129 in the atmosphere using a frequency-doubled neodymium laser. Laser Physics Volume 23, Issue 10, October 2013, Article number 105701

14 сентября 2018
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Контактные данные автора публикации Kireev, S.V. , Shnyrev, S.L. , Simanovsky, I.G., Sobolevsky, I.V., Suganeev, S.V., Kondrashov, A.A. National Research Nuclear University
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This work reports on research into the fluorescence of 127I 129I and 127I2 isotopologues excited by radiation from a frequency-doubled neodymium laser. We determined the wavelengths of excitation radiation that are optimal for the simultaneous detection of the mentioned isotopes being mixed with each other in atmospheric air. A laser-induced fluorescence (LIF) method is proposed to measure the concentrations of 127I129I and 127I2 simultaneously. The paper shows that the minimum measurable fraction of 127I129I molecules mixed with 127I2 is 6.5 × 10-7, which is more than ten times better than existing results obtained by LIF for monitoring iodine in the atmosphere.
Indexed keywords
Atmospheric air; Excitation radiation; Iodine-129; Isotopologues; Laser induced fluorescence; Simultaneous detection
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