Screening system and method of using same
| DWPI Title: Integrated apparatus for use in sampling system to screen trinitrotoluene material by person, has heater applying heat to metal foam such that sample is desorbed from metal foam, and analyzer detecting material from sample after desorption |
| Abstract: An integrated apparatus and method for screening an object for a target material is provided. The integrated apparatus comprises a housing and an integrated screener. The housing is positionable adjacent the object, and has a channel therethrough. The integrated screener is positionable in the housing, and comprises a fan, at least one filter, a heater and an analyzer. The fan is for drawing air carrying particles and vapor through the channel of the housing. The filter(s) is/are positionable in the channel of the housing for passage of the air therethrough. The filter(s) comprise(s) at least one metal foam having a plurality of pores therein for collecting and adsorbing a sample from the particles and vapor passing therethrough. The heater is for applying heat to the at least one metal foam whereby the collected sample is desorbed from the metal foam. The analyzer detects the target material from the desorbed sample. |
| Use: Integrated apparatus for use in an integrated sampling system to screen a target material i.e. trinitrotoluene material, by an object i.e. person. Can also be used for screening an object for corbon-4, dynamite, fuels, chemicals, cast materials, illegal drugs and chemical agents i.e. toxins. |
| Advantage: The apparatus can perform collection, desorption and analysis of the samples from the object in a single, integrated operation by using a single device, so that the apparatus has low manufacturing cost, ease utilization, small size and better durability. |
| Novelty: The apparatus (101a) has an integrated screener (112a) comprising a filter positionable in a channel of a housing for passage of air. The filter comprises metal foam and includes a set of inter-connected pores to collect and adsorb a sample from the particles and vapor of the air, and a set of cut edges, where each cut edge is formed by electrical discharge machining (EDM). An electrical resistance heater applies heat to the metal foam such that the sample is desorbed from the metal foam. An analyzer detects the target material from the sample after desorption. |
| Filed: 8/30/2010 |
| Application Number: US2010871327A |
| Tech ID: SD 10881.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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