Comparison of Direct and Adjoint k and α-Eigenfunctions

Autor: Vito Vitali, Florent Chevallier, Alexis Jinaphanh, Andrea Zoia, Patrick Blaise

Publikováno v: Journal of Nuclear Engineering, Vol 2, Iss 2, Pp 132-151 (2021)

Modal expansions based on k-eigenvalues and α-eigenvalues are commonly used in order to investigate the reactor behaviour, each with a distinct point of view: the former is related to fission generations, whereas the latter is related to time. Well-

Externí odkaz: https://doaj.org/article/cac80cd3984043c6b13c99ad9f77a2a4

Comparison of Direct and Adjoint k and α-Eigenfunctions

Autor: Patrick Blaise, Andrea Zoia, Alexis Jinaphanh, Florent Chevallier, Vito Vitali

Publikováno v: Journal of Nuclear Engineering, Vol 2, Iss 14, Pp 132-151 (2021)
Journal of Nuclear Engineering
Volume 2
Issue 2
Pages 14-151

Modal expansions based on k-eigenvalues and α-eigenvalues are commonly used in order to investigate the reactor behaviour, each with a distinct point of view: the former is related to fission generations, whereas the latter is related to time. Well-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c23a69b3a11a35d754e3c79d6b17c57
https://www.mdpi.com/2673-4362/2/2/14

Spectral analysis by direct and adjoint Monte Carlo methods

Autor: Alexis Jinaphanh, Andrea Zoia, Florent Chevallier, Patrick Blaise, Vito Vitali

Publikováno v: Annals of Nuclear Energy
Annals of Nuclear Energy, Elsevier Masson, 2020, 137, pp.107033-. ⟨10.1016/j.anucene.2019.107033⟩
Annals of Nuclear Energy, 2020, 137, pp.107033. ⟨10.1016/j.anucene.2019.107033⟩

International audience; Time or $\alpha$ eigenvalues are key to several applications in reactor physics, encompassing start-up analysis and reactivity measurements. In a series of recent works, a Monte Carlo method has been proposed in order to estim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44c13f7310c1b249650f1d8f0bb5daf8
https://hal.archives-ouvertes.fr/hal-03488748

Eigenvalue separation and eigenmode analysis by matrix-filling Monte Carlo methods

Autor: Patrick Blaise, Alexis Jinaphanh, Vito Vitali, Florent Chevallier, Andrea Zoia

Publikováno v: Annals of Nuclear Energy. 164:108563

Matrix-filling Monte Carlo methods can be successfully used to estimate higher-order k- and α -eigenmodes and eigenvalues of the Boltzmann equation. A novel matrix-filling Monte Carlo approach has been recently developed in T ripoli -4® in order to

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8fbb3ec87be09b3b2835ebae8cef9ae3
https://doi.org/10.1016/j.anucene.2021.108563

Perturbation and sensitivity calculations for time eigenvalues using the Generalized Iterated Fission Probability

Autor: Andrea Zoia, Alexis Jinaphanh

Publikováno v: Annals of Nuclear Energy
Annals of Nuclear Energy, Elsevier Masson, 2019, 133, pp.678-687. ⟨10.1016/j.anucene.2019.06.062⟩
Annals of Nuclear Energy, 2019, 133, pp.678-687. ⟨10.1016/j.anucene.2019.06.062⟩

TRIPOLI-4® is a registered trademark of CEA; International audience; Time eigenvalues emerge in several key applications related to neutron transport problems, including reactor start-up and reactivity measurements. In this context,experimental vali

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fee1b8fcc155aa45b1f7099db15b1cb9
https://hal.archives-ouvertes.fr/hal-03487336