Criticality safety assessment using SUSD3D and DRAGON

Abstract : The Collision Probability method is a fast and efficient technique for solving the neutron transport equation in unstructured meshes and can be used to produce homogenized cross sections for use in diffusion calculations. With the highly developed tools available, the method can also be applied to core problems involving a large number of mesh points. Unfortunately, no tools are available to perform sensitivity analysis for such computations. In this paper, we present the modifications made to SUSD3D (the nuclear data sensitivity code maintained by OECD) to calculate sensitivities to nuclear data using Generalized Perturbation Theory (GPT) methods with the integral transport theory code DRAGON and the diffusion approximation code DONJON(maintained by Ecole Polytechnique de Montreal). The propagation of uncertainties inherent in nuclear data is examined from simple PWR cell calculations performed with DRAGON to 3D DRAGON/DONJON core calculations for fast systems. The work has been qualified through validations of the results against those obtained by other benchmark participants using direct sensitivity calculations with SCALE6. The good consistency between the results obtained by these different tools demonstrates that the coupling is effective for critical safety assessment calculations.
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Poster communications
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http://hal.in2p3.fr/in2p3-01247928
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Submitted on : Wednesday, December 23, 2015 - 10:21:25 AM
Last modification on : Tuesday, May 22, 2018 - 9:48:10 PM

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  • HAL Id : in2p3-01247928, version 1

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P. Sabouri, A. Bidaud, I. Kodeli. Criticality safety assessment using SUSD3D and DRAGON. 20th International Conference Nuclear Energy for New Europe (NENE2011), Sep 2011, Bovec, Slovenia. Proc. of International Conference Nuclear Energy for New Europe, Bovec, Slovenia, Sept. 12-15 2011 pp.332.1-332.8, 2011. ⟨in2p3-01247928⟩

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