Danielle South Freyman

Center for Nuclear Security Science and Policy Initiatives

Texas A&M Engineering Experiment Station

Danielle South Freyman

Danielle_Freyman_profile_picture

NSSPI Graduate
Nuclear Engineering

M.S., 2024

Short Bio:

Danielle South Freyman earned a Master of Science degree from Texas A&M University in 2024 with a specialization in nuclear nonproliferation. Danielle began her involvement in NSSPI working with Dr. Marianno as an undergraduate researcher in 2020 and joined as a graduate assistant in 2022. As a graduate student, she conducted research on gamma source localization using experimental measurements with NaI and CZT detectors. Her work utilized GADRAS software to simulate environmental spectra and demonstrated that simulated methods could effectively replicate experimental results. This research supported efforts at Los Alamos National Laboratory (LANL) to improve in-line glovebox measurements and streamline non-destructive assay (NDA) processes for special nuclear material (SNM). During her time at NSSPI, Danielle completed two summer internships with LANL’s Safeguards Science and Technology group. She had the opportunity to presented her research at the 2023 Institute of Nuclear Materials Management (INMM) Annual Meeting in Vienna, Austria and to participate in an International Nuclear Facility Experience (INFE) in Europe. Following graduation, Danielle joined LANL as a nuclear criticality analyst, supporting plutonium production and R&D initiatives across the laboratory and the Nevada National Security Site.

NSSPI Publications:

  1. D. South, J. King, S.S. Chirayath, and C.M. Marianno, "Experimental and computational verification of a new remote monitoring system design for spent fuel dry cask safeguards", INMM/ESARDA Joint Annual Meeting, 22-26 May 2023, Vienna, Austria.

  2. T. DeGuire, D. South, O. Pannucci, S. Sarnoski, T. Stockman, R. Lakis, "An Integrated Approach to Precision Neutron Measurements in a Dynamic Environment", INMM/ESARDA Joint Annual Meeting, 22-26 May 2023, Vienna, Austria.

  3. J.W. King, D.M. South, S.S. Chirayath, C.M. Marianno, "Experimental and Computational Verification of a New Remote Monitoring System Design for Spent Fuel Dry Cask Safeguards using Small-scale, Generic Diversion Scenarios", Nuclear Technology, 208 (2022).