Irreversible Circulation of Fluctuation in Reactor Noise [PDF]
Irreversible circulation of fluctuation, α, is introduced as a new variable for the analysis of reactor noise in the normal case, which further develops our previous for-mulation based on the system size expansion method. It is shown that α-considered in conjunction with the variance σ-provides useful information about reactor noise, apart from the ...
Tamotsu Sekiya
exaly +4 more sources
Coherence Analysis of Boiling Water Reactor Noise [PDF]
Empirical studies of coherences between measurement variables from the operating data of a commercial nuclear power station of 460 MWe are applied to derive dynamical characteristics of the Boiling Water Reactor and to attempt to identify the noise sources of the neutron flux. Multivariate techniques with the partial coherence function and the multiple
Kohyu Fukunishi
exaly +2 more sources
Local and high distance neutron and gamma measurements of fuel rods oscillation experiments [PDF]
We report in the present article on the successful observation using noise analysis of the lateral oscillation of one fuel rod by ±2.5 mm around nominal at 0.1 Hz frequency, using an mm3 miniature neutron scintillator at the rod level, and a BGO gamma ...
Lamirand Vincent +6 more
doaj +1 more source
REACTOR NOISE ANALYSIS FOR A GRAPHITE-MODERATED AND -REFLECTED CORE IN KUCA [PDF]
In graphite-reflected thermal reactors, even a detector placed far from fuel region may detect a certain degree of the correlation amplitude. This is because mean free path of neutrons in graphite is longer than that in water or polyethylene.
Sakon Atsushi +6 more
doaj +1 more source
EXPERIMENT OF UNIQUE COMBINATION NUMBER DUE TO THE THIRD-ORDER NEUTRON-CORRELATION [PDF]
From zero-power reactor noise measurement, the second- and third-order neutron correlation factors Y and y3 can be evaluated by analyzing mean, variance, the third-order central moment of neutron count data. Theoretically, it is expected that the neutron-
Endo Tomohiro +7 more
doaj +1 more source
Noise-related Hearing Loss in Workers of a Thermal Reactor
Noise-related Hearing Loss in Workers of a Thermal ...
F Ceyda AKINOCAL +3 more
doaj +3 more sources
REACTOR NOISE EXPERIMENTS CONSIDERING HIGH FREQUENCIES IN THE IPEN/MB-01 REACTOR [PDF]
Reactor noise experiments at high frequencies (up to 100 kHz) in subcritical configurations have been performed at the IPEN/MB-01 research reactor facility. The core configuration considered a short version of the IPEN/MB-01 core in a 24 × 26 rectangular
dos Santos Adimir +1 more
doaj +1 more source
REACTOR PHYSICS EXPERIMENT IN A GRAPHITE-MODERATION SYSTEM FOR HTGR [PDF]
The Japan Atomic Energy Agency (JAEA) started the Research and Development (R&D) to improve nuclear prediction techniques for High Temperature Gas-cooled Reactors (HTGRs).
Fukaya Y. +7 more
doaj +1 more source
Analysis of At-Power Reactor Noise [PDF]
exaly +2 more sources
Investigation of organic scintillators for neutron-gamma noise measurements in a zero power reactor [PDF]
Noise measurements in light water reactor systems aid in generating validation data for integral point kinetic parameter predictions and monitoring parameters for reactor safety and safeguards.
Darby F.B. +6 more
doaj +1 more source

