Laser-based Stand-off Detection of Potentially Hazardous Materials via Light Induced Fluorescence (lif)
نویسندگان
چکیده
The release of chemical, biological and explosive (CBE) hazardous materials is a very important and recurring topic concerning personal safety and security. Consistently, the public is shocked by attacks of varying dimensions. Therefore, it is important to find methods, which provide the ability to detect and identify hazardous materials at an early stage without having contact to the danger area, inducing the correct counteractions in time to reduce the risk to the public and the emergency services. Especially the detection of biological agents is a major challenge. The great variety of such hazardous substances, their different physical states as well as their different ways of currency, contamination and incubation complicate the detection additionally. [1]
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Mixing of the Immiscible Liquids in the Entrance Region of a T-Type Chamber Using Laser Induced Fluorescence (LIF) Method
A Laser Induced Fluorescence technique (LIF) has been used to study the mixing behavior of two emerging streams in a T-Type mixing chamber. A mixing index on the basis of digital image light intensities is calculated. It has been shown that averaging over more than 800 images leads to a stable mixing index calculation. Moreover, the effect of equal and un-equal flow rates on the mixing behavior...
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