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Concept of a new GloveBox Cleanout Assistance Tool (BCAT) by using Distributed Source-Term Analysis (DSTA)

Nakamura, Hironobu ; Beddingfield, D. H.*; Nakamichi, Hideo; Kurita, Tsutomu 

The Distributed Source-Term Analysis (DSTA) technique has been used in a variety of safeguards applications to determine the location and quantity of material contained within large sample volumes. The DSTA method can provide the user with knowledge of the location of neutron-producing materials and the magnitude of the localized activity. A facility operator can use this information to identify the physical location of holdup during cleanout activities. In this paper, we present the concept of using the DSTA method as a ${it Glove Box Cleanout Assistance Tool}$ (BCAT) that is used by operator during cleanout activities to increase recovered material and reduce facility MUF. In addition to the above effects, this BCAT concept provides that operator radiation-exposure and unmeasured inventory can be also reduced. We also present the actual powder recovering result performed in PCDF and comparison result between recovered material amount and calculated amount by BCAT.



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