Analysis of dust samples collected from spent nuclear fuel interim storage containers at Hope Creek, Delaware, and Diablo Canyon, California

SNF Interim Storage Canister Corrosion and Surface Environment Investigations

“…The methods used for chemical analysis of the SaltSmart™ and dry pad samples from Hope Creek and Diablo Canyon are described in Bryan and Enos (2014b). The results of the soluble salt analyses for the SaltSmart™ are presented below.…”

“…Measured compositions for the soluble salts extracted from the SaltSmart™ sensors are provided in Table 2, in units of µg per sample. Also shown in this table are several SaltSmart® blanks run at Sandia; see Bryan and Enos (2014b) for a description of these samples. The blanks are included here to allow better assessment of the significance of the measured values for the unknowns.…”

Results of stainless steel canister corrosion studies and environmental sample investigations

“…Section 2.4 presents and discusses the results of the different analyses, and Section 2.5 provides a summary. This report provides typical results for the samples from the different ISFSI sites and canisters; a complete suite of the SEM/EDS and XRF analyses performed is provided in Bryan and Enos (2014).…”

“…First, for both the wet and dry samples, those collected from the flat tops of the canisters are more heavily coated with dust than those collected from the sides. The Saltsmart™ sensors from the top of the canister were heavily discolored, and the dry pad samples from the top had visible dust loads; samples from the canister sides were only lightly discolored (Bryan and Enos, 2014). This suggests that more dust was present on the tops of the canisters, but it should be remembered that a different collection method and thicker pads were used to collect the dry samples from the canister tops, and that may have contributed to the higher dust loads.…”

“…Results are summarized here with typical images from some samples; a complete suite of analyses is provided in Bryan and Enos (2014), and allows the reader to better assess the representativeness of the results provided here.…”