Falsifiable tests reveal mechanistic insights into high burnup structure in irradiated UO₂, suggesting a new energy source.
Key Points
The aim is to test the hypothesis that high burnup structure in UO₂ is driven by a sub-picosecond mechanical pressure pulse during nuclear scission.
Proposing three experimental tests: AFM to isolate pressure-specific lateral branching, HRTEM for morphology discrimination, and synchrotron SAXS/WAXS strain mapping.
Using muscovite mica as a proxy and spontaneous fission tracks from ²⁵²Cf to validate predictions regarding the mechanical pressure pulse.
Employing comparative techniques for morphological analysis and strain characterization of irradiated UO₂.
Identifying pressure-specific branching in the context of the mechanical pressure pulse.
Differentiating scission-induced amorphous cores from electronic deposition in heavy-ion tracks.
Mapping predicted compressive zones and distinguishing them from thermal-spike signatures in UO₂.