Abstract
The intent of this work is to highlight the role of differential and integral data evaluation to address issues in connection with criticality safety applications. Demonstration is made by using, as an example, differential data measurements and evaluation, and the benchmark integral experiments for titanium. Energy-differential data are measured analyzed and evaluated to produce nuclear data libraries for criticality safety applications. Alternatively, integral experiments are performed at critical facilities, small experimental reactors, and play an important part in the validation of the differential nuclear data. The demonstration provided here for titanium gives its importance to criticality safety. Titanium is an effective neutron absorber that serves as baseline material for chemical separation in high-activity waste solutions in US. Titanium has not been considered for use in nuclear applications such as reactor design and analysis. Rather, it appears as a structural material that may be present in fuel cycle facilities or canisters for transport and disposition of nuclear waste. Criticality safety evaluations of systems in which titanium is present require an understanding of the nuclear data and its uncertainty.
| Original language | English |
|---|---|
| Pages (from-to) | 881-883 |
| Number of pages | 3 |
| Journal | Transactions of the American Nuclear Society |
| Volume | 117 |
| State | Published - 2017 |
| Externally published | Yes |
| Event | 2017 Transactions of the American Nuclear Society, ANS 2017 - Washington, United States Duration: Oct 29 2017 → Nov 2 2017 |
Funding
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-NA0003525. Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia LLC, a wholly owned subsidiary of Honeywell International Inc. for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525. In the US the benchmark experiments were funded by the US Department of Energy Nuclear Criticality Safety Program and performed at Sandia National Laboratories on SPRF/CX facility 4whereas in France the experiments took place at CEA/Valduc on Apparatus B under the MIRTE program.5 In the experiments performed under the US program the titanium takes the shape of rods gathered at the center of a lattice of 7uPCX UO rods,