Patent ID: 8294102

Claim:
A chemical biological threat detection system for detecting chemical and biological threats in atmosphere, comprising: a laser for irradiating a field to be monitored, for exciting components in the field of monitor such that at least a portion of the components in the field of monitor are caused to emit IR radiation in a wavelength range 8-12 μM wavelength; a detector having a field of monitor, for continuously detecting incoming infrared radiation in the wavelength range 8-12 μM wavelength; said detector continuously monitoring the field of monitor on a continuing basis such that it can detect a change in the field of monitor upon entry of an unknown biological threat agent; an analyzer having reference equations, a reference database, and a computer, for determining quantitative correlations ratios of the unknown chemical biological threat agent that enters the field of monitor of the detector, using direct measurements of I 0 (λ) and I 10 (λ); and the quantitative chemical biological IR EM correlations ratios, at various wavelengths (λ), being found by correlating with the quantitative low level detection of the change in measured EM energy (8-12 μM wavelength), for at least two different atmospheric layers, for a specific monitored field of view.