Impact of UC2, UC, UBC and UB2 target compositions on the release of fission products

Abstract

The release properties of 4 targets (UC2, UC, UBC, UB2) were measured for 11 elements (Kr, Sr, Ru, Sn, Sb, Te, I, Cs, Ba, La, and Ce) using an off-line technique. The crystal packing fraction and the size of the studied element play a key role in the release process. However, physicochemical properties are also involved, notably melting and boiling points in vacuum and the minimal oxidation state. Principal component analysis was used to investigate the interrelationships between the physicochemical properties of fission products (from Fe to Dy) and the observed releases, thereby enabling predictions to be made about the release properties of the four crystallic configurations for elements that are inaccessible in off-line experiments.

Published in Nuclear Instruments and Methods in Physics Research B, 559 (2025) 165600, https://doi.org/10.1016/j.nimb.2024.165600

References in corpus (3)

• Development of radioactive beams at ALTO: Part 2. Influence of the UCx target microstructure on the release properties of fission products
• Study of uranium oxide milling in order to obtain nanostructured UCx target
• Influence of density and release properties of UCx targets on the fission product yields at ALTO