Phase II: In-field analysis of trace U and Pu by electrochemical pre-concentration

The Defense Threat Reduction Agency (DTRA) needs a capability to collect and provide immediate presumptive analysis of radiological/nuclear samples of concern at the source of collection. Such in-field technologies should be capable of detecting and identifying trace quantities of elements and/or chemicals containing plutonium (Pu) and uranium (U), with a focus on chemicals specific to the nuclear fuel cycle. AwareAbility Technologies (AAT), in collaboration with The Ohio State University (OSU), is developing a small hand-held analysis kit for in-field analysis of trace amounts of U and Pu. Swipe, dust, or water samples would be analyzed for isotopes and isotopic ratios to indicate situations such as the special nuclear material (SNM) diversion in nuclear fuel cycle, clandestine enrichment activities in foreign weapon programs, and/or post-detonation forensics. Phase I has served to prove the validity of such a battery powered in-field analysis kit where a “smart cap” has a sensor and two penetrating electrodes for electrodeposition and in-field detection of U or Pu deposited onto the sensor.  In particular, the ability to detect U and Pu at 1ppm or less has been demonstrated. The advantages of the dual mode operation have also been illustrated. Phase I also helped solidify the concept of a commercially viable product called the In-Field Trace Analyzer (IFTA). AAT seeks to mature this technology with a Phase II effort.