Wednesday (Group 2) - SERDP-ESTCP - Strategic Environmental ...

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Munitions Management (MM) High Explosive Identification Poster Number 63 – Wednesday P OPERATIONAL EVALUATION OF A NEW ACOUSTIC TECHNIQUE FOR UXO FILLER IDENTIFICATION DR. WES COBB University of Denver Research Institute 2050 E. Iliff Avenue Denver, CO 80208 (303) 871-3140 wcobb@du.edu ersonnel who must remediate Department of Defense sites need better tools to discriminate between unexploded ordnance (UXO) and non-hazardous items. Although great effort has been made to detect and localize UXO in the ground and underwater, there are currently few devices that can inspect and identify the filler materials. The ability to make a quick and safe filler identification would significantly lower the risks to personnel and the cost of remediation. This project utilizes acoustic waves to identify the materials inside sealed UXO. Small sensors clamped to the outside of the ordnance send low-energy acoustic waves through the container walls and filler. The received signals are analyzed to determine the characteristic acoustic properties of the filler material. To identify the filler, these measured properties are compared to a database of properties for known explosive and inert filler materials. This talk describes an ongoing project to demonstrate and validate new technology for identifying the filler material in UXO. This technology, developed under the Strategic Environmental Research and Development Program (MM-1382), correctly identified important inert filler types in demonstrations on actual ordnance at several DoD laboratory and range facilities. In the current ESTCP project, key field tests have been conducted at a controlled DoD site (Aberdeen Test Center) to confirm accurate identification for fired ordnance. The talk will report on validation testing of the acoustic technique at a controlled site (Navy EOD Technology Division) and at an active UXO response site. This project has been supported under ESTCP MM-0740. G-25
Munitions Management (MM) Planning and Support Poster Number 64 – Wednesday A APG STANDARDIZED UXO TECHNOLOGY DEMONSTRATION SITE RECONFIGURATION DENNIS A. TEEFY U.S. Army Aberdeen Test Center 400 Colleran Road TETD-AT-SLE Aberdeen Proving Ground, MD 21005 (410) 278-4062 dennis.teefy@us.army.mil CO-PERFORMERS: Kimberly Watts (USAEC); William Burch and Rickey Fling (ATC); Patrick McDonnell (BAH) dvancements in Unexploded Ordnance (UXO) detection and discrimination technologies are necessary to support the sustained operation, restoration, and transfer of the DoD’s ranges. The Aberdeen Proving Ground (APG) and Yuma Proving Ground (YPG) Standardized UXO Technology Demonstration Sites provide the UXO Community the ability to evaluate the detection and discrimination capabilities of UXO sensor systems. This ability has been augmented at the APG Standardized Site as a result of a third generation reconfiguration. During the two previous reconfigurations, ground truth items were removed, shuffled, and reburied. Traditionally the open field area of the site was configured to represent a common, mixed use impact area. A fundamental philosophical shift occurred during this reconfigurations and areas simulating both Direct and Indirect Fire training ranges would be developed in the open field. The sub areas have ordnance and clutter emplaced that mimic the expected size, type, and distribution of targets found in their respective fire impact areas. System performance is evaluated for response and discrimination stages by reporting probability of detection, probability of false positive, background alarm rate, and ROC curves. Several improved scoring metrics are now available to expand the understanding of system performance. Scoring has been modified to determine the impact of overlapping halos due to grouped ordnance and clutter. Detection within these overlapping halos is now reported in three ways: groups found (any item within a group is matched to an anomaly on a demonstrator’s list), groups identified (multiple items within a composite halo are matched to anomalies on a demonstrator’s list) and groups covered (measures the demonstrator’s accuracy in determining the number of anomalies within a group). In addition, demonstrators are now provided all scoring information based not on the depth of the item buried but rather the depth compared to the diameter of the target. These modifications to the APG Standardized Site will continue to support the advancement in UXO sensor technologies. A portion of the open field area remains in the previous generation’s configuration. This allows the program to compare results to previously completed demonstrations at both APG and YPG. No modifications have been made at the YPG Standardized Site at this time. The APG and YPG sites are currently open for testing of handheld, man-portable and towed array detection systems. This project has been supported under ESTCP MM-0103. G-26
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Wednesday (Group 2) - SERDP-ESTCP - Strategic Environmental ...

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