Publications
Showing 14 results for Author: Jim M. Nash
Apr, 2026
Journal
Computational Thermal Hydraulics of a High-Performance Low-Enriched-Uranium Annular Target for HFIR Irradiation
Molybdenum-99 has been historically generated via isolation from fission products of fissioned highly enriched uranium targets. The isotope is of significant demand due to its daily use across the planet in radiopharmaceutical medical procedures. The primary objective of this paper was to design and analyze an experimental target assembly containing one low enriched uraniu…
Mar, 2026
Conference Paper
Processing–Microstructure–Tensile Performance Nexus in Pure Molybdenum
Mar, 2026
Conference Paper
Estimating Heat Generation and Energy Deposition in Low-Enriched Uranium Foil Targets
Aug, 2025
Journal
An engineering perspective on evaluating mechanisms governing ductility in pure molybdenum
The United States lacks a stable domestic supply of 99mTc, a critical medical imaging isotope generated from 99Mo. Accelerator-based production using 100Mo targets (aMo) introduces mechanical concerns due to the ductile-to-brittle transition temperature inherent to refractory metals like Mo. This study evaluates the tensile behavior of aMo targets from 25 to 1000 °C, compa…
Apr, 2025
ORNL Report
Annular Target with LEU Foil for HFIR Irradiation – Part 1: Neutronic Analysis
Apr, 2025
ORNL Report
Radiation Dose Modeling for Niowave’s Accelerator Driven Uranium Target Assembly 3
May, 2024
Conference Paper
High Flux Isotope Reactor Low-Enriched Uranium Conversion – Design and Fuel Qualification Overview