Nuclear data sensitivity and uncertainty for the Canadian supercritical water-cooled reactor

Blomeley, L.; Pencer, Jeremy; Hyland, B.; Adams, F.P.

doi:10.1016/j.anucene.2013.08.029

Cited by 10 publications

(8 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results in Table 7 (in comparison with Tables 5 and 6) show that the highest contributors to sensitivity are not necessarily associated with the largest contributors to the uncertainty, with the results largely consistent with those in Blomeley et al [27]. As an example, 92 Zr (n,γ) and 242 Pu (n,γ) appear to be on the list of the highest contributors to uncertainty at both positions of the fuel channel, but k ∞ is not significantly sensitive to any of these nuclides-reactions, indicating a high nuclear data covariance in these reactions.…”

Section: Uncertainty Studies On Noc Lattice Cellsupporting

confidence: 80%

“…The large quantities of these materials as well as their absorption and the neutron capture cross-sections impacts k ∞, and this explains their high sensitivities. It should be noted that k ∞ is more sensitive to 56 Fe than 91 Zr despite the disparity in the amounts of these materials in the lattice as the 91 Zr has a lower thermal neutron absorption crosssection than iron 56 Fe [27]. For personal use only.…”

Section: Sensitivity Studies On Noc Lattice Characteristicsmentioning

confidence: 99%

“…Simulations of the different scenarios listed in Table 3 were executed using NEWT and TSUNAMI-2D codes. The scenario selection was based on a set of preliminary sensitivity simulations in addition to the methodology proposed in Blomely et al [27] and Langton et al [28]. NEWT was used to investigate the reaction rates, flux spectrum, space homogenized cross-sections, the components of the 4-factor formula, and the neutron multiplication factor for the infinite lattice cell to observe and assess the important changes in lattice physics phenomena.…”

Section: Cnl Nuclear Review Vol 5 Number 2 December 2016mentioning

confidence: 99%

See 2 more Smart Citations

Investigation of Reactor Physics Phenomena in the Canadian Pressure Tube Supercritical-Water Reactor

Moghrabi¹,

Novog²

2016

CNL Nuclear Review

View full text Add to dashboard Cite

Section: Uncertainty Studies On Noc Lattice Cellsupporting

confidence: 80%

Section: Sensitivity Studies On Noc Lattice Characteristicsmentioning

confidence: 99%

Section: Cnl Nuclear Review Vol 5 Number 2 December 2016mentioning

confidence: 99%

See 1 more Smart Citation

Investigation of Reactor Physics Phenomena in the Canadian Pressure Tube Supercritical-Water Reactor

Moghrabi¹,

Novog²

2016

CNL Nuclear Review

View full text Add to dashboard Cite

“…are defined as the relative change in a response Keff with respect to cross section in a particular energy group g [11,12], it is defined as:…”

Section: Sensitivity and Uncertainty Approachmentioning

confidence: 99%

Sensitivity and Uncertainty Analysis on the Keff Produced by the 1H, 16O, 239Pu and 240Pu Cross Sections Uncertainties

Ahmed¹,

Boukhal²,

Bardouni³

et al. 2017

ujpa

View full text Add to dashboard Cite

In criticality and stability studies of the nuclear reactor, it is important to evaluate the impact of the uncertainties of the basic nuclear data (cross sections) on the different neutron parameters. So this work is interested in the analysis of the sensitivity and uncertainties due to the nuclear data of 1 H, 16 O, 239 Pu and 240 Pu Isotopes in the ENDF/B-VII.1 cross sections processed by the latest version of NJOY code on the effective multiplication factor. Different rapid and thermal cases of the different IHECSBE benchmarks have been studied to calculate the sensitivity vectors for 1 H, 16 O, 239 Pu and 240 Pu Isotopes. These sensitivity vectors are calculated by using the adjoint-weighted perturbation method based on the Ksen card of the Monte Carlo code MCNP6.1. Thus, the uncertainties induced by nuclear data have been calculated by combining the sensitivity vectors with the covariance matrices that are generated by the ERRORJ module of NJOY2016. We found several cross sections and covariance matrices lack the adjustment: The capture and fission cross sections of the 239 Pu and their covariance matrices lack the adjustment in the thermal energies. And all of the four cross sections (elastic, inelastic, capture and fission) and their covariance matrices for the same isotope lack the adjustment in the rapid energies. For 16 O; the elastic cross section and its covariance matrix lack the adjustment in the thermal energies. The elastic and capture cross sections of the 1 H and their covariance matrices lack the adjustment especially in the thermal energies.

show abstract

“…Furthermore, future Gen IV reactors require cross-section data under extended conditions, which have not been previously measured. Simulations have demonstrated that the cross-section data of deuterium has a significant impact on the neutron multiplication factor and reactivity coefficient for the conceptual Canadian Supercritical Water Reactor [5].…”

Section: Introductionmentioning

confidence: 99%

Thermal Neutron Scattering Cross-Section Measurements of Heavy Water

Li¹,

Bentoumi²,

Tun³

et al. 2016

CNL Nuclear Review

View full text Add to dashboard Cite

Nuclear data sensitivity and uncertainty for the Canadian supercritical water-cooled reactor

Cited by 10 publications

References 7 publications

Investigation of Reactor Physics Phenomena in the Canadian Pressure Tube Supercritical-Water Reactor

Investigation of Reactor Physics Phenomena in the Canadian Pressure Tube Supercritical-Water Reactor

Sensitivity and Uncertainty Analysis on the Keff Produced by the <sup>1</sup>H, <sup>16</sup>O, <sup>239</sup>Pu and <sup>240</sup>Pu Cross Sections Uncertainties

Thermal Neutron Scattering Cross-Section Measurements of Heavy Water

Contact Info

Product

Resources

About