Artículo
A direct method for unfolding the resolution function from measurements of neutron induced reactions
Autor/es | Žugec, P.
Colonna, Nicola Sabate Gilarte, M. Vlachoudis, V. Massimi, C. Lerendegui Marco, Jorge Warren, S. G. |
Departamento | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear |
Fecha de publicación | 2017 |
Fecha de depósito | 2023-01-26 |
Publicado en |
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Resumen | The paper explores the numerical stability and the computational efficiency of a direct method for unfolding
the resolution function from the measurements of the neutron induced reactions. A detailed resolution ... The paper explores the numerical stability and the computational efficiency of a direct method for unfolding the resolution function from the measurements of the neutron induced reactions. A detailed resolution function formalism is laid out, followed by an overview of challenges present in a practical implementation of the method. A special matrix storage scheme is developed in order to facilitate both the memory management of the resolution function matrix, and to increase the computational efficiency of the matrix multiplication and decomposition procedures. Due to its admirable computational properties, a Cholesky decomposition is at the heart of the unfolding procedure. With the smallest but necessary modification of the matrix to be decomposed, the method is successfully applied to system of 105 × 105 . However, the amplification of the uncertainties during the direct inversion procedures limits the applicability of the method to high-precision measurements of neutron induced reactions. |
Agencias financiadoras | Croatian Science Foundation European Commission (EC) |
Identificador del proyecto | FP7-PEOPLE-334315 ("NeutAndalus") |
Cita | Žugec, P., Colonna, N., Sabate Gilarte, M., Vlachoudis, V., Massimi, C., Lerendegui Marco, J. y Warren, S.G. (2017). A direct method for unfolding the resolution function from measurements of neutron induced reactions. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 875, 41-50. https://doi.org/10.1016/j.nima.2017.09.004. |
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