Nuclear Data Sensitivity Tool (NDaST)

The Nuclear Data Sensitivity Tool (NDaST) is a Java based piece of software, designed to perform calculations on nuclear data sensitivity files for benchmark cases. These calculations are either:

• an estimation of the impact of nuclear data perturbations to the computed case results, and/or;
• calculation of the uncertainty in the computed results due to evaluated nuclear covariance data.

This allows simple and fast analysis for nuclear data evaluators to test the impact of revisions across a wide set of benchmarks. Users may also efficiently compare the difference in uncertainties obtained from various sources.

Automated database search and loading from:

• ICSBEP  and IRPhE  handbooks
• JANIS nuclear data system

Supported formats:

• sensitivity data: Tsunami 1D/3D (.sdf), ABBN
• covariance data: ENDF, BOXER, COVERX.

User manual:

• How-to-NDaST-2022 (PDF)  [Updated May 2022]

Launch NDaST

Publications

External Publications:

Dyrda, J., Hill, I., Bossant, M., Gulliford, J. and Soppera, N., 2015. The New OECD-NEA Nuclear Data and Sensitivity Tool (NDaST). Transactions, 113(1), pp.1299-1302.

Hill, I. and Dyrda, J., 2016. Nuclear Data Testing Of Pu {sup 239} CIELO Evaluation With NDaST. Transactions of the American Nuclear Society, 115

Dyrda, J., Soppera, N., Hill, I., Bossant, M. and Gulliford, J., 2017. New features and improved uncertainty analysis in the NEA nuclear data sensitivity tool (NDaST). In EPJ Web of Conferences (Vol. 146, p. 06026). EDP Sciences.

Dyrda, J., Hill, I., Fiorito, L., Cabellos, O., & Soppera, N. (2018). A comparison of uncertainty propagation techniques using NDaST: full, half or zero Monte Carlo?. EPJ Nuclear Sciences & Technologies, 4, 14.

Contact

ndast@oecd-nea.org