Patchy nuclear chain reactions

E Dumonteil, R Bahran, T Cutler, B Dechenaux… - Communications …, 2021 - nature.com
Stochastic fluctuations of the neutron population within a nuclear reactor are typically
prevented by operating the core at a sufficient power, since a deterministic (ie, exactly …

Application of dynamic mode decomposition to Rossi-α method in a critical state using file-by-file moving block bootstrap method

T Endo, F Nishioka, A Yamamoto… - journal of nuclear …, 2022 - Taylor & Francis
Prompt neutron decay constant α in a critical state is useful information to validate the
numerically predicted ratio of the point kinetics parameters β eff/ℓ, where β eff and ℓ are the …

Application of dynamic mode decomposition to exponential experiment for spatial decay constant determination

T Yamamoto, H Sakamoto - Annals of Nuclear Energy, 2021 - Elsevier
When measuring the fundamental mode decay constant γ in an exponential experiment, it is
difficult to extract the fundamental mode from a measured neutron flux distribution that is …

Experimental validation of noise theory developed by considering the source as an exponentially correlated process in DT neutron generator driven subcritical system

NK Ray, LM Pant, T Patel, R Kumar, T Roy… - Progress in Nuclear …, 2019 - Elsevier
Degweker and Rana (2007) have developed a noise theory considering the external
neutron source as exponentially correlated Gaussian character for Accelerator Driven …

[图书][B] Introduction to Nuclear Reactor Experiments

G Wakabayashi, T Yamada, T Endo, CH Pyeon - 2023 - library.oapen.org
This open access book is a pedagogical text on nuclear reactor experiments, covering
almost all the experiments that can be carried out at the University Training Reactor, Kindai …

Data assimilation using subcritical measurement of prompt neutron decay constant

T Endo, A Yamamoto - Nuclear Science and Engineering, 2020 - Taylor & Francis
The prompt neutron decay constant α in a steady-state subcritical system can be directly
measured using a reactor noise analysis method such as the Feynman-α method. To reduce …

The use of an SDE model for subcritical reactor noise experiment design and its comparison to a traditional Monte Carlo computational method

E Magali, C Dubi - Annals of Nuclear Energy, 2023 - Elsevier
Noise experiments, and the Feynman-α method in particular, are used to measure the decay
rate of the neutron population in a source driven subcritical assembly, such as that of a shut …

Theoretical derivation of a unique combination number hidden in the higher-order neutron correlation factors using the Pál-Bell equation

T Endo, F Nishioka, A Yamamoto… - Nuclear Science and …, 2023 - Taylor & Francis
The Pál-Bell equation is a backward-type master equation that describes the probability
generating function (PGF) of neutron counts in a neutron multiplication system. Thanks to the …

[HTML][HTML] Nuclear education programs with reactor laboratory experiments at zero-powered research reactor facilities in Japan

CH Pyeon, T Endo, G Chiba, K Watanabe… - Annals of Nuclear …, 2024 - Elsevier
Reactor laboratory experiments are conducted in zero-powered research reactor facilities, at
the University Teaching and Research Reactor (UTR in Kindai University: UTR-KINKI) and …

Application of linear combination method to pulsed neutron source measurement at Kyoto University Critical Assembly

R Katano, M Yamanaka, CH Pyeon - Nuclear Science and …, 2019 - Taylor & Francis
The applicability of the linear combination method is experimentally confirmed through the
pulsed neutron source (PNS) experiment. The linear combination method reduces the …