Daniel  Suescún-Dĭaz, D. Peña  Lara, Jesus A.  Chala-Casanova, 
    Calculation of Reactivity using the Simpson’s 3/8 Rule,
    Journal of Engineering and Applied Sciences,
    Volume 14,Issue 23,
    2019,
    Pages 8797-8803,
    ISSN 1816-949x,
    jeasci.2019.8797.8803,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2019.8797.8803)
    Abstract: In this study, we present a new method of calculating the reactivity using the inverse point kinetic
equation. We discretize the history of the neutron population density with the integration method known as
Simpson’s 3/8. We resolve it numerically with the sum of a convolution. For this study we develop diverse
numerical experiments, in which we consider different expressions for the neutron population density and
different time steps. When we compare the results acquired with some methods reported in the literature, we
find that the proposed method gives correct results and therefore can be used to calculate reactivity correctly.
    Keywords: integrationmethod;convolution;Simpson’s three eights method;reactivity;Inverse point kinetic equation;diverse numerical experiments