PSI Methodologies for Nuclear Data Uncertainty Propagation with CASMO-5M and MCNPX : Results for OECDNEA UAM Benchmark Phase I
Joint Authors
Vasiliev, A.
Zhu, T.
Ferroukhi, H.
Wieselquist, W.
Source
Science and Technology of Nuclear Installations
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-02-07
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
Capabilities for uncertainty quantification (UQ) with respect to nuclear data have been developed at PSI in the recent years and applied to the UAM benchmark.
The guiding principle for the PSI UQ development has been to implement nonintrusive “black box” UQ techniques in state-of-the-art, production-quality codes used already for routine analyses.
Two complimentary UQ techniques have been developed thus far: (i) direct perturbation (DP) and (ii) stochastic sampling (SS).
The DP technique is, first and foremost, a robust and versatile sensitivity coefficient calculation, applicable to all types of input and output.
Using standard uncertainty propagation, the sensitivity coefficients are folded with variance/covariance matrices (VCMs) leading to a local first-order UQ method.
The complementary SS technique samples uncertain inputs according to their joint probability distributions and provides a global, all-order UQ method.
This paper describes both DP and SS implemented in the lattice physics code CASMO-5MX (a special PSI-modified version of CASMO-5M) and a preliminary SS technique implemented in MCNPX, routinely used in criticality safety and fluence analyses.
Results are presented for the UAM benchmark exercises I-1 (cell) and I-2 (assembly).
American Psychological Association (APA)
Wieselquist, W.& Zhu, T.& Vasiliev, A.& Ferroukhi, H.. 2013. PSI Methodologies for Nuclear Data Uncertainty Propagation with CASMO-5M and MCNPX : Results for OECDNEA UAM Benchmark Phase I. Science and Technology of Nuclear Installations،Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-480710
Modern Language Association (MLA)
Wieselquist, W.…[et al.]. PSI Methodologies for Nuclear Data Uncertainty Propagation with CASMO-5M and MCNPX : Results for OECDNEA UAM Benchmark Phase I. Science and Technology of Nuclear Installations No. 2013 (2013), pp.1-15.
https://search.emarefa.net/detail/BIM-480710
American Medical Association (AMA)
Wieselquist, W.& Zhu, T.& Vasiliev, A.& Ferroukhi, H.. PSI Methodologies for Nuclear Data Uncertainty Propagation with CASMO-5M and MCNPX : Results for OECDNEA UAM Benchmark Phase I. Science and Technology of Nuclear Installations. 2013. Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-480710
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-480710