One project involved studying thorium and uranium bonding with the soft-donor chalcogenides, specifically sulfur. The second portion of this dissertation describes efforts to better understand electronic structure and bonding of the actinide metals in various environments. Different types of frameworks also yield different results. In the case of the MOFs, a larger pore size in the framework leads to higher separation yields when contacted with 0.01 M HNO3. Lower concentrations of acid were used for future experiments. It was also discovered that using 0.1 M HNO3 as a contact acid leads to the dissolution of the target material. The results indicate that smaller particle sizes of dUO2 in contact with the secondary matrix KBr yield higher separation yields than particles without a secondary matrix. The targets were irradiated with fast neutrons from one of two different neutron sources, contacted with dilute acids to facilitate the separation of fission products, and analyzed via gamma spectroscopy for separation yields. Porous metal organic frameworks (MOFs) synthesized from depleted uranium (dU), and other organicbased frameworks containing dU. Several materials were studied as a proof-of-concept that fission products can be extracted from a solid target, including microparticulate (< 10 µm diameter) dUO2, Rapid separation of fission products from a target material, without the need to dissolve the target, is an important technique to develop to improve the library and provide a means to develop samples and standards for testing separations. ![]() ![]() The expansion of this library is imperative as technology advances. Post-detonation nuclear forensics, in particular, the study of fission products resulting from a nuclear device to determine device attributes and information, often depends on the comparison of fission products to a library of known ratios. This dissertation covers several distinct projects relating to the fields of nuclear forensics and basic actinide science.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |