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Technology Factsheet

Airborne Laser-Induced Fluorescence Imaging

Category: Characterization > Monitors > Radiation Monitors
Reference # : OST No 78 , DOE-EM-0427 Model No : LIF

LIF is an optical technique that consists of two major components: one comprised of the laser, a close-coupled device (CCD) camera and monitor which were mounted on a tripod, and the other consisting of a chiller and laser control subsystems. LIF works by using laser light to cause an excitation of material - in this case, the uranium oxide molecules that may be present as a surface contaminant. Energy is then released from the molecules in the form of fluorescence that is then detected by using a CCD camera and instantaneous displayed on a video monitor, which can be electronically stored for further analysis.


The technology's ability to scan areas, while eliminating the need to be in direct contact with the surface being screened, makes the technique highly desirable for both productivity and safety improvements.


-The current configuration of the system is somewhat bulky and difficult to transport. -The system is limited to the detection of uranium ores, oxides, and other molecular forms of uranium. The system will have extreme difficulty in detecting U3O8 (Black Oxide) because of the absorptive nature of black compounds. -The system can be easily overwhelming by solar light. Precautions must be taken to ensure that sunlight is minimized. -The system detects but does not measure uranium activity.




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