Application of research reactor environments for validation of the IRDFF-II dosimetry cross section library

Journal Article · Mon Nov 11 00:00:00 EST 2024 · EPJ Web of Conferences (Online)

DOI:https://doi.org/10.1051/epjconf/202430804003· OSTI ID:2585032

Griffin, Patrick ^[1]; Peters, Curtis ^[1]; Parma, Edward ^[2]; Vehar, David ^[1]

---

1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
2. Eden Radioisotopes, LLC, Albuquerque, NM (United States)

Activation data from seven different reactor-based reference neutron fields are examined to provide enhanced validation evidence for the newly released IRDFF-II library. A least-squares based spectrum adjustment methodology is used and rigorous statistical metrics demonstrate the consistency of the set of IRDFF-II dosimetry cross sections. The use of these reactor-based neutron fields provides validation evidence for nine more reactions than have been addressed in the ²⁵²Cf(sf) and ²³⁵U(th) benchmark validation testing. The use of covers to shift their energy response increases the power of the response validation but makes it challenging to properly capture response correlations.

• Research Organization: Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA). Office of Defense Science
• Grant/Contract Number: NA0003525
• OSTI ID: 2585032
• Report Number(s): SAND2025--08111J; 1740145
• Journal Information: EPJ Web of Conferences (Online), Journal Name: EPJ Web of Conferences (Online) Journal Issue: 04003 Vol. 308; ISSN 2100-014X
• Publisher: EDP Sciences
• Country of Publication: United States
• Language: English