Showing 23 results for Author: Dominic R. Giuliano
Jul, 2026
Journal
The Laue neutron macromolecular crystallography beamline IMAGINE at the High Flux Isotope Reactor (HFIR) is undergoing a major upgrade to incorporate the Dynamic Nuclear Polarization (DNP) technique. Upon completion, the new IMGAINE-X instrument is expected to enhance the signal-to-noise ratio of the diffraction data by an order of magnitude. To take full advantage of the…
Feb, 2026
ORNL Report
Two large scale 316L stainless steel cylindrical shells were fabricated by wire arc directed energy deposition (WA DED). Residual stresses were measured by neutron diffraction, and the microstructure and mechanical properties of the printed material were characterized. Longitudinal and transverse residual stresses were compressive at the inner diameter, near neutral at mid…
Jan, 2025
ORNL Report
As a part of the DOE NE High Burnup Spent Fuel Data Project, Oak Ridge National Laboratory (ORNL) is performing destructive examinations (DEs) of high burnup (HBU) (>45 GWd/MTU) spent nuclear fuel (SNF) rods from the North Anna Nuclear Power Station operated by Dominion Energy. The SNF rods, called sister rods or sibling rods, are all HBU and include four different kinds o…
Dec, 2023
Conference Paper
Nov, 2023
Journal
Gas-cooled nuclear reactors operate at temperatures up to 950 ℃ with significant spatial variations in power generation and coolant flow through hundreds of parallel flow channels, resulting in complex mixing at the core outlet. The high temperatures and complex mixing can damage downstream components, challenge reactor calorimetry for power determination, and result in si…
Nov, 2023
Conference Paper
In this paper, 316L stainless steel walls were printed using single-bead pass and multiple-bead pass wire arc additive manufacturing (WAAM), which represent the internal basket wall and external wall of a spent nuclear fuel (SNF) canister; respectively. Scanning electron microscopy (SEM) microstructure characterization and tensile tests at room temperature (21 °C) and elev…
Nov, 2023
Conference Paper
The back end of the fuel cycle focuses on the interim storage, transportation, and final disposition of the spent nuclear fuel from nuclear reactors. Commercial light water nuclear power stations across the United States operate with fuel assemblies being irradiated for up to 6 years (planned) in the reactor pressure vessel. After their planned irradiation, the fuel assemb…
Nov, 2023
Conference Paper
Nov, 2023
Conference Paper
Nov, 2023
Conference Paper
In this paper, 316L stainless steel (316L SS) straight walls, curved walls, and vessels were printed by wire arc additive manufacturing (WAAM) using the 316L SS welding wire, to demonstrate the feasibility of spent nuclear fuel (SNF) canisters using this advanced manufacturing technique. Helium leak test with leak tight criteria of 1 × 10-7 ref-cc/s were performed on print…
Nov, 2023
ORNL Report
To increase production capabilities of actinium-227, Oak Ridge National Laboratory is improving existing hot cell facilities in building 3047 where the feedstock is handled and processed. Current processing operations in hot cell D will be moved to the adjacent hot cell C after the addition of two new custom work tables. These work tables will enable additional production…