Black and Smokeless Powders Technologies for Finding Bombs and the Bomb Makers (1998) / Chapter Skim
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Appendix D: Taggant and Marker Concepts
Appendix D: Taggant and Marker Concepts
Pages 115-122
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From page 115... ...
The technology has been employed in pharmaceutical, petrochemical, and agricultural industries.2 tin addition to the summaries listed in this appendix, the committee received written information on taggant concepts from CNC Development, Inc., February 2, 1998, and April 11, 1998; and Plexis BioSciences, LLP, May 7, 1998. 2James Rittenburg, Biocode, Inc., presentation to the committee, March 6, 1998.
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From page 116... ...
batch with one taggant code, adding at the 7 ppm level. Crosscontamination and environmental persistence have not been fully studied.4 Isotag LLC Isotag LLC proposed a mass enhanced molecular twin concept through isotopic substitution in explosive samples and identification with mass spectroscopy.
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From page 117... ...
Chemical Delivery Systems, Inc. Chemical Delivery Systems, Inc., proposed use of encapsulated frangible particles and masked detection materials as both a detection marker and identification taggant.
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From page 118... ...
The proposed isotope has a large capture cross section, improving the signal-to-noise ratio, although the cost of marker addition is unresolved. The isotopes are stable, and the excitation probe as well as the prompt gamma emissions are reportedly sufficiently penetrating to detect materials concealed in high-density containers such as steel casings.
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From page 119... ...
12Andrzej Drukier and James Wadiak, BioTraces, Inc., presentation to the NRC Committee on Marking, Rendering Inert, and Licensing of Explosive Materials, January 14, 1997, and information from BioTraces, Inc. 13Daniel Bolt, Cambridge Isotope Laboratories, Inc., presentation to the NRC Committee on Marking, Rendering Inert, and Licensing of Explosive Materials, January 14, 1997, and information from Cambridge Isotope Laboratories, Inc.
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From page 120... ...
The company has only limited experience in explosives mixing operations, although it believes that its general approach could be adaptable to explosives applications. Science Applications International Corporation In written testimony,l8 Science Applications International Corporation proposed a detonator detection system based on multiphoton detection, a technique based on measurement of radioisotopic tracers whose decay is accompanied by 15Klaus Zimmermann, MICOT Corporation, October 30, 1997, and information from MICOT, January 20, 1997.
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From page 121... ...
20James Cotton, SRI International, presentation to the NRC Committee on Marking, Rendering Inert, and Licensing of Explosive Materials, January 13, 1997, and information from SRI International. See also "Unique Excitation, Emission Forms Basis of New Taggants," Chemical and Engineering News, January 27, 1997, p.
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From page 122... ...
23Urenco NederIand B.V., information received by the NRC Committee on Marking, Rendering Inert, and Licensing of Explosive Materials, September 25, 1996.
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