THERMAL EFFECTS ON MASS AND SPATIAL RESOLUTION DURING LASER PULSE ATOM PROBE TOMOGRAPHY OF CERIUM OXIDE

Journal Article · Wed May 01 04:00:00 EDT 2013 · Journal of Nuclear Materials

DOI:https://doi.org/10.1016/j.jnucmat.2012.12.052· OSTI ID:1097194

Kirchhofer, Rita; Teague, Melissa C.; Gorman, Brian P.

Cerium oxide (CeO2) is an ideal surrogate material for trans-uranic elements and fission products found in nuclear fuels due to similarities in their thermal properties; therefore, cerium oxide was used to determine the best run condition for atom probe tomography (APT). Laser pulse APT is a technique that allows for spatial resolution in the nm scale and isotopic/elemental chemical identification. A systematic study of the impact of laser pulse energy and specimen base temperature on the mass resolution, measurement of stoichiometry, multiples, and evaporation mechanisms are reported in this paper. It was demonstrated that using laser pulse APT stoichiometric field evaporation of cerium oxide was achieved at 1 pJ laser pulse energy and 20 K specimen base temperature.

• Research Organization: Idaho National Laboratory (INL)
• Sponsoring Organization: DOE - NE
• DOE Contract Number: AC07-05ID14517
• OSTI ID: 1097194
• Report Number(s): INL/JOU-12-26569
• Journal Information: Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials Journal Issue: 1 - 3 Vol. 436; ISSN 0022-3115
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
atom probe tomography