Sv. Kireev et al., A LASER-INDUCED FLUORESCENCE DETECTOR FOR MONITORING THE GLOBAL RADIONUCLIDE I-129 IN ATMOSPHERIC AIR, Laser physics, 4(1), 1994, pp. 199-202
A laser-induced fluorescence detector for on-line control of the long-
lived iodine-129 isotope concentration on the basis of a He-3-Ne-20 la
ser is developed. Iodine fluorescence spectra are measured, and factor
s determining the sensitivity of I-129(2) detection are investigated.
It is shown that the detector is applicable for ecological monitoring
of iodine-129 in atmospheric air, down to the level of maximal permiss
ible concentrations of about 10(9) molecules per cubic centimeter.