Title: Fluidic-micro-nano-hetro-structures for nuclear power application

Biography:

Popa Simil Liviu is a Nuclear Engineer, Physicist, Director of Los Alamos Academy of Sciences. He got B.Sc. In fast breeder reactors, M.Sc. In nuclear engineering, plasma-laser selective chemistry, and phd in nuclear, atomic, and molecular materials physics at National Institute for Atomic Physics, Bucharest. 

Abstract

Nuclear energy development is dependent on new nanoengineered materials incorporating heterogeneity by design, in order to allow higher performances and safety. Fission products occurrence inside nuclear reactors are responsible for low nuclear fuel burnup and fuel damage. Replacing the actual homogeneous Urania ceramic structure with a Ceramic –liquid metal micro structure that self-separates the fission products by trapping them into a drain liquid that may be NaK, PbBi (LBE) preventing them to damage the nuclear fuel and allowing easy fuel reprocessing. Another development relies on nano-cluster properties of enhanced separation of transmutation products resulted from Th or Pu cycle, or production of radioisotopes, that can be used inside nano-clustered-hetero-structure, made of nanobeads of actinides washed by a drain liquid with affinity for the transmutation products resembling a frit. Washed by the nanoflow. In direct nuclear energy to electricity conversion supercapacitor-like devices, the end of range of the nuclear particles create large lattice damage , that can be improved using liquid –solid hetero-structures as LiH on MWCNTs that have increased robustness to radiation damage.  and sensitive lines.