Nuclear Reactivity Calculation with Reduction of Fluctuations
This article presents a study based on a series of numerical experiments. It demonstrates the possibility of reducing fluctuations in the calculation of reactivity using the second Bernoulli number based on the approximation of the Euler-Maclaurin formula. This approach requires knowledge of the...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2023-07-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/5970 |
| Summary: | This article presents a study
based on a series of numerical experiments. It demonstrates the possibility of
reducing fluctuations in the calculation of reactivity using the second
Bernoulli number based on the approximation of the Euler-Maclaurin formula.
This approach requires knowledge of the first three derivatives, which are
implemented progressively. The fluctuations are assumed to occur around an
average value of the neutron density with a Gaussian distribution. Jitter
reduction is performed with a first-order delayed low-pass filter for different
forms of neutron population density, with different time steps and with
different filter constants. The numerical results show that the method can be
used as a digital reactivity meter. |
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| ISSN: | 2086-9614 2087-2100 |