Technology

Clear Path’s proprietary next-generation “Atometry” detection technology makes our systems among the most advanced detection tools available today. Our systems are the only true chemical-specific, automated tools available in the marketplace which can identify and confirm the presence of substances through metal, concrete, steel and other barriers, whether shielded or masked.

The cornerstone of our Atometry technology is our revolutionary “stoichiometric” Atometer sensor which can accurately decode and decipher a target’s chemical composition, as well as estimate its mass, non-invasively and in real time. This non-destructive technology enables our detection devices to provide confirmatory screening for threat materials based on a target’s actual elemental composition with the highest levels of confidence.

While traditional confirmatory screening typically requires up-close and dangerous interaction with an undefined threat, our Atometer detectors can be operated remotely at a safe distance. Further, our systems do not rely on human intepretation or the detection of anamolies, which greatly dimishes false alarms and provide a higher safety factor.

Atometry in Action

Atometry sample

Our Atometer detectors determine the chemical composition of a subject –– an abandoned suitcase, a suspected car bomb, etc. –– by irradiating it with billions of highly energetic fast-neutrons. Because high energy fast-neutrons are neutrally charged particles, our Atometers can penetrate dense material, essentially “seeing” through containers, surrounding clutter and other barriers, including concrete, plastic or steel. Our systems are considered “non-destructive” and “clean” as they do not leave any residual radiation or by-products and use little or no consumables.

When sufficient neutrons arrive on target, they stimulate the nuclei of the contents within the interrogated region causing the contents to emit gamma rays which are then captured by very high resolution detectors. These gamma rays carry unique `signatures’ of the chemical elements present in the target from which we are able to decipher the quantitative empirical composition or “formula” of the targeted material with a very high level of confidence.

Our Atometers perform a two-stage chemical analysis at the molecular level unlike that provided by any other portable commercial system available today; first detecting the elements present in the target area along with their concentration, and then identifying the material by analyzing the weighted percentage of the presence of those elements by utilizing sophisticated, proprietary algorithms.

It is this “stoichiometric” technique which enables our Atometers to accurately detect and classify, as well as estimate the mass of, a very wide range of threat materials, including non-standard mixtures of explosives such as those contained in homemade bombs or Improvised Explosives Devices (IEDs) which are difficult to detect with other techniques.

Our Atometers are also capable of detecting radionuclides or special nuclear materials (SNM). In its passive mode, our systems can be utilized as a portal to screen areas and persons for the presence of radionuclides and radioisotopes in compliance with DHS ANSI N42-34 standards with a level of accuracy rivaling the most advanced radionuclide detectors available today.

Our current line of Atometers have been programmed to identify and confirm the presence of threat materials such as explosives, radionuclides, metals, combustibles, and certain chemical agents, as well as illicit contraband such as drugs. However, in principle, they can be adapted to determine the chemical makeup of most substances.

A 97% Percent Detection Accuracy Rate

Our Atometer detection devices have a detection accuracy rate of approximate 97%, with “false positive” and “false negative” rates of approximately 3%, and are considered confirmatory because of their unique stoichiometric capability.** Our Atometer detectors can be used alone or in combination with other screening, scanning and detection products to provide even greater reliable detection, and substantially eliminate the occurrence of false alarms. X-ray and other “anomaly” detection devices, including even the most advanced multi-energy X-ray systems, sustain very high rates of false alarms and are “chemically blind”, only being able to infer the presence of threat materials or contraband based on shape or density.

** Performance, in terms of speed of detection and level of confidence, is directly correlated and dependent on the mass of the threat material, distance from the detector, and the quantity of shielding or masking present.

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