Publications by authors named "Edward J Mausolf"

New modes of production and supply of short-lived radioisotopes using accelerators are becoming attractive alternatives to the use of nuclear reactors. In this study, the use of a compact accelerator neutron source (CANS) was implemented to explore the production of Tc and Tc. Irradiations were performed with neutrons generated from a 16.

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Technetium-101 (Tc) has been poorly studied in comparison with other Tc isotopes, although it was first identified over ~80 years ago shortly after the discovery of the element Tc itself. Its workable half-life and array of production modes, i.e.

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Presented are the results of Tc and Tc production via neutron irradiation of natural isotopic molybdenum (Mo) with epithermal/resonance neutrons. Neutrons were produced using a deuterium-deuterium (D-D) neutron generator with an output of 2 × 10 n/s. The separation of Tc from an irradiated source of bulk, low-specific activity (LSA) Mo on activated carbon (AC) was demonstrated.

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Article Synopsis
  • Uranyl nitrate is a crucial component in the nuclear fuel cycle, existing in various hydrated states: hexahydrate (UNH), trihydrate (UNT), and dihydrate, with stability influenced by water vapor pressure and temperature.
  • Historical studies from the 1950s used infrared spectroscopy, but had limitations in resolution and sample preparation. Recent advancements employed time-resolved reflectance spectroscopy, which requires no sample prep, enabling real-time analysis of the hydration changes.
  • Observations showed that as UNH desiccates, it transforms to UNT — indicated by shifts in distinct spectral bands — with structural changes confirmed by density functional theory and optical microscopy, identifying different cation sites in each phase.
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We report on a subtle global feature of the mass action kinetics equations for water radiolysis that results in predictions of a critical behavior in H2O2 and associated radical concentrations. While radiolysis kinetics have been studied extensively in the past, it is only in recent years that high-speed computing has allowed the rapid exploration of the solution over widely varying dose and compositional conditions. We explore the radiolytic production of H2O2 under various externally fixed conditions of molecular H2 and O2 that have been regarded as problematic in the literature-specifically, "jumps" in predicted concentrations, and inconsistencies between predictions and experiments have been reported for α radiolysis.

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