BIOLOGICAL AND CHEMICAL SENSOR TECHNOLOGIES POC Dr. James Ratches (703) 704-1166, Robert Barnard (703) 704-1066. The Army is organizing a workshop on biological and chemical sensor technologies to establish the state-of-the-art for detecting explosive compounds used in antitank (AT) and antipersonnel mines (AP) and unexploded ordnance (UXO). These technologies will provide detection specificty that can improve probability of detection and in particular reduce the false alarm rate. AT mines contain between 10 and 20 pounds of high explosive (HE) compounds in plastic or metal cases and they are buried from flush with the ground surface to six inches deep. HE in the AT mines is typically TNT, RDX, Comp B, Amatol or Comp H6. The predominate explosive used is TNT. The amount of explosive in AP mines ranges from 2 ounces to 24 ounces; these explosives are contained in plastic or metal cases and are buried at depths between flush to the surface and two inches deep. The HE in AP mines is typically TNT, tetryl, PETN, Comp B, C-4, or amatol. UXOs can be large to small projectiles laying on the surface to many feet in the ground depending on the projectile size, weight, and velocity and the ground softness. Detection technologies are required for combat mine detection operations where time to detect is critical and for demining and remediation applications where time to detect is not critical. The workshop is planned for three days: 4, 5, and 6 June 1996. Selected presentations will be presented on the first two or two and one half days. The last one half day or day will be spent by the Government prioritizing the technical approaches. Papers sighting technologies that have been experimentally evaluated and supported with test data will have priority in order of acceptance. The objective of this workshop is to present to the Army the current state of technology in biological and trace gas sensors as it applies to land mine and UXO detection. This information will be analyzed and evaluated by the Army and the most promising approaches may be recommended for inclusion in the Army mine detection program. Operational application and estimated costs for clearing 100 meter by 100 meter area must be addressed. Emphasis is on biological/trace gas sensing mechanisms such as detection of volatile molecules similar to smelling in animals. Research into science of sensing, such as smelling and electronic implementations of applying scientific principles are of prime interest. The more classical approaches to mine detection, such as, optical, magnetic and GPR are not of interest to this workshop. Briefing materials or abstracts must be submitted no later than 21 May 1996 to: CECOM RDEC NVESD, ATTN: AMSEL RD NV CD MD (BARNARD), 10221 Burbeck Road, Ste 430, Fort Belvoir, VA 22060-5806. Notification of acceptance and presentation date will be given by 28 May 1996. Questions concerning technologies or presentations may be directed to Dr. James Ratches (703) 704-1166 or Robert Barnard (703) 704-1066.

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