Photon Systems and JPL are continuing development of a new technology robot-mounted or hand-held sensor for
reagentless, short-range, standoff detection and identification of trace levels CBE materials on surfaces. This deep
ultraviolet CBE sensor is the result of ongoing Army STTR and DTRA programs. The evolving 6 lb, 15W, lantern-size
sensor can discriminate CBE from background clutter materials using a combination of deep UV excited resonance
Raman (RR) and laser induced native fluorescence (LINF) emissions resulting from excitation by a new technology
deep UV laser. Standoff excitation of suspicious packages, vehicles, persons, and other objects that may contain
hazardous materials is accomplished using wavelengths below 250nm where RR and LINF emissions occupy distinctly
different wavelength regions. This enables simultaneous detection of RR and LINF emissions with no spectral overlap
or interference of LINF over RR or RR over LINF.
The new eye-safe targeted ultraviolet chemical, biological, and explosives (TUCBE) sensor can detect and identify less
than 1 μg/cm2 of explosives or 104 bacterial spores at 10 meters standoff, or 10 ng/cm2 of explosives or 102 bacterial
spores/cm2 at 1 meter standoff. Detection and identification requires less than 1 ms and has a sample rate up to 20 Hz.
Lower concentrations of contamination can be detected and identified as closer ranges and higher concentrations at
longer ranges. The sensor is solar blind and can be operated in full daylight conditions as a result of excitation and
detection in the deep UV and the use of a gated detection system.