A feasibility study concerning the application of Poly-Allyl-Diglycol Carbonate (CR-39™) solid state tracks detectors for fast survey of residual alpha contamination has been carried out at Casaccia Research Center, as a joint effort from ENEA, Sogin, and Sapienza University of Rome. The main target of the activity is to develop and set up a fast and economic method for assessing the presence of residual uranium, plutonium, and/or mixed oxides (MOX) traces on walls, floor, furniture, and small objects (PC-displays, keyboards, tools, etc.) of hot laboratories under decommissioning. The key idea is using CR-39™ foils for cladding surfaces under investigation for recognizing the typical uranium and plutonium clusters originated by alpha particles interaction with CR-39™, that are clearly distinguished from the tracks originated by radon decay products. Results of experimental tests have given a clear picture of alpha tracks clusters originated by plutonium sources, while radon decay products gave uniform alpha tracks' distribution.
All Science Journal Classification (ASJC) codes
Zorri, V., Remetti, R., Capogni, M., Cotellessa, G., & Falcone, R. (2017). Feasibility study on the application of solid state tracks detectors for fast surveys of residual alpha contamination in decommissioning activities. Radiation Measurements, 107, 111 - 114. https://doi.org/10.1016/j.radmeas.2017.09.004