Feb 15 – 19, 2026
Grand Hotel Mediterraneo
Europe/Rome timezone
12th International Conference on Isotopes - 12ICI

ANALYSIS OF SMALL SAMPLES OF SPENT NUCLEAR MATERIALS FOR INTERPRETING REACTOR OPERATING HISTORY

Feb 17, 2026, 11:44 AM
20m
Pacifico Room (Grand Hotel Mediterraneo)

Pacifico Room

Grand Hotel Mediterraneo

Oral presentation 6. Security, Safety and Quality Assurance 6. Security, Safety and Quality Assurance - Tue_S1_D

Speaker

Brett Isselhardt (Lawrence Livermore National Laboratory)

Summary

We have applied Lawrence Livermore National Laboratory’s state-of-the art characterization capabilities to several samples of spent nuclear material. This presentation will explain how we can analyze nearly any combination of 3 elements including U, Pu, Am, Sr, Rb, Mo, Zr, Nd, Ba, Cs simultaneously, usually with enough material remaining to analyze the others in a subsequent analysis. We will show how connecting multiple isotope ratios across elements and comparing those analytical results to computational models provide an improved understanding of the operating history of a nuclear reactor.

Are you interested/eligible for the Young Session? No, I am not eligible

Author

Brett Isselhardt (Lawrence Livermore National Laboratory)

Co-authors

Dr Andrew Conant (Oak Ridge National Laboratory) Dr Manuel Raiwa (L) Dr Michael Savina (Lawrence Livermore National Laboratory) Dr Ziva Shulaker (Lawrence Livermore National Laboratory)

Presentation materials

There are no materials yet.