THE INFLUENCE OF TEMPERATURE AND FREQUENCY FACTORS ON THE FLUORESCENCE OF I-127(2) IN THE ATMOSPHERIC AIR EXCITED BY RADIATION OF A (HENE)-HE-3-NE-20 (633 NM) LASER
Sv. Kireev et Sl. Shnyrev, THE INFLUENCE OF TEMPERATURE AND FREQUENCY FACTORS ON THE FLUORESCENCE OF I-127(2) IN THE ATMOSPHERIC AIR EXCITED BY RADIATION OF A (HENE)-HE-3-NE-20 (633 NM) LASER, Laser physics, 5(5), 1995, pp. 1055-1059
The factors are studied strongly influencing the laser-excited fluores
cence of molecular iodine-127 present in the atmospheric air. The para
meters optimal for the sensitivity of iodine-127 detection are determi
ned: the temperature of iodine vapor, the frequency of exciting radiat
ion, and the pressure of the analyzed gas mixture. Under the optimal p
arameters, the fluorescence intensity increases 20 - 25 times, providi
ng a reliable control of iodine-127 in the atmosphere at the level of
permissible concentrations for living zones.