Calculation of reactor kinetics parameters with Monte Carlo differential operator sampling

2015 ◽  
Vol 82 ◽  
pp. 226-229 ◽  
Author(s):  
Yasunobu Nagaya
2019 ◽  
Vol 128 ◽  
pp. 231-235 ◽  
Author(s):  
Xingjie Peng ◽  
Jingang Liang ◽  
Benoit Forget ◽  
Kord Smith

Author(s):  
Ze-guang Li ◽  
Kan Wang ◽  
Gang-lin Yu

In the reactor design and analysis, there is often a need to calculate the effects caused by perturbations of temperature, components and even structure of reactors on reactivity. And in sensitivity studies, uncertainty analysis of target quantities and unclear data adjustment, perturbation calculations are also widely used. To meet the need of different types of reactors (complex, multidimensional systems), Monte Carlo perturbation methods have been developed. In this paper, several kinds of perturbation methods are investigated. Specially, differential operator sampling method and correlated tracking method are discussed in details. MCNP’s perturbation calculation capability is discussed by calculating certain problems, from which some conclusions are obtained on the capabilities of the differential operator sampling method used in the perturbation calculation model of MCNP. Also, a code using correlated tracking method has been developed to solve certain problems with cross-section changes, and the results generated by this code agree with the results generated by straightforward Monte Carlo techniques.


2016 ◽  
Vol 96 ◽  
pp. 377-388 ◽  
Author(s):  
Andrea Zoia ◽  
Yasushi Nauchi ◽  
Emeric Brun ◽  
Cédric Jouanne

2020 ◽  
Vol 192 (1) ◽  
pp. 14-26
Author(s):  
A M Sadek

Abstract The purpose of the current work is to investigate the effect of the scatter data and the background noise level on the uncertainty of the thermoluminescence (TL) measurements. The Monte-Carlo (MC) algorithm has been used to simulate the scattering data and the background noise signal in TL glow-curve. Under the simulation and experimental parameters used in the present study, a new general criterion for the minimum measurable dose has been established. It has been found from the results that the TL measurements, using either the peak maximum or the peak integral, can be conducted with an uncertainty level $<\pm 10\%[2\sigma ]$ when the TL signal is at least 10 times greater than the background noise signal. It has also been found that the same criterion can be used for the evaluation of the kinetics parameters of the TL glow-peak using either the peak fitting or the peak shape methods.


2014 ◽  
Vol 71 ◽  
pp. 451-461 ◽  
Author(s):  
Liam Russell ◽  
Adriaan Buijs ◽  
Guy Jonkmans

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