Improved nondestructive assay of isotopic masses in used nuclear fuel would be valuable for nuclear safeguards operations associated with the transport, storage, and reprocessing of used nuclear fuel. Our collaboration is examining the feasibility of using lead slowing-down spectrometry techniques to assay the isotopic fissile masses in used nuclear fuel assemblies. We present the application o...

It is generally recognized that the spent fuel discharged from nuclear power plants constitutes the main contribution to nuclear waste. The management of spent fuel from nuclear power plants differs depending on the perspectives and scenarios posed by the countries directly concerned. However, there is a general consensus on the need for a deep geological repository and a reduction in the burde...

This work presents the novel first-order comprehensive adjoint sensitivity analysis methodology for critical points (1st-CASAM-CP), which enables exact and efficient computation of sensitivities responses defined at (maxima, minima, saddle points) coupled nonlinear models physical systems characterized by imprecisely known parameters underlying models, boundaries, interfaces between systems. Re...

FeCrAl is regarded as one of the most promising cladding materials for accident-tolerant fuel at nuclear fission reactors due to its comprehensive properties inherent corrosion resistance, excellent irradiation high-temperature oxidation and stress cracking resistance. In this work, response irradiated by 2.4 MeV He2+ ions with a fluence 1.1 × 1016 cm−2 room temperature was studied using X-ray ...

The filament winding process is a competitive performing technology for nuclear fuel cladding tubes due to its high automation. study of the yarn path on mandrel surface vital design and produce tube with desired mechanical properties, reducing manufacturing time costs. geodesic semi-geodesic trajectories are used create 3D in this paper. A optimization method based principle minimum potential ...

Lead-cooled fast reactors (LFRs) are considered one of the most promising technologies to meet requirements introduced for advanced nuclear systems. LFRs have higher neutron doses, temperatures, burnup and an extremely corrosive environment. The failure studies claddings play a vital role in improving safety criteria promoting research on materials. This paper presented comprehensive review ext...

The Experimental Breeder Reactor-II (EBR-II) was a 62.5 MWt±20 MWe sodium cooled fast reactor that was operated successfully for 30 years. Over its period of operation a wealth of fuels and materials information originated from EBR-II. Several missions were conducted in EBR-II, all of which yielded new and valuable additions to the world's knowledge base for nuclear materials. Some of the ®rst ...

A new acoustical sensing system for the nuclear power industry has been developed at The Pennsylvania State University in collaboration with Idaho National Laboratories. This sensor uses the high temperatures of nuclear fuel to convert a nuclear fuel rod into a standing-wave thermoacoustic engine. When a standing wave is generated, the sound wave within the fuel rod will be propagated, by acous...