Abbate, Osiris I. (2021) KDSource: desarrollo de una herramienta computacional para calculo de blindajes / KDSource: development of a computational tool for shielding calculation. Maestría en Ingeniería, Universidad Nacional de Cuyo, Instituto Balseiro.
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Resumen en español
El presente proyecto consistió en el desarrollo de una herramienta computacional de modelado de fuentes distribucionales, denominada KDSource. La misma se orienta principalmente a aplicaciones en cálculos de blindajes y/o haces de partículas, y permite la comunicación con varios códigos Monte Carlo, con particular enfoque en McStas y TRIPOLI. Se desarrolló un paquete de herramientas para el modelado general de fuentes de partículas por el método Kernel Density Estimation, método superador de la técnica de histogramas empleada anteriormente. Dichas fuentes se basan en listas de tracks capturadas en simulaciones Monte Carlo, y permiten la generación ilimitada de nuevas partículas respetando la distribución estimada, sin repeticiones. El paquete se compone de una librería en Python, a través de la cual se realiza el análisis y optimización de la fuente, y una librería en C, mediante la cual se generan nuevas partículas. Además cuenta con una aplicación de línea de comando y un conjunto de archivos auxiliares que facilitan la utilización de las fuentes. Los principales beneficios de la herramienta, en simulaciones Monte Carlo, son la reducción de varianza y el acople entre códigos. Se demostró el funcionamiento y la utilidad de la herramienta en un cálculo de blindajes sobre un diseño conceptual de guía neutrónica, basado en el haz GF1 del reactor RA10. El cálculo incluyó un acople entre óptica y transporte de radiación, y permitió obtener mapas de dosis por neutrones, fotones prompt, fotones de fuente y fotones de activación en posiciones lejanas al núcleo.
Resumen en inglés
The present project consisted in the development of a computational tool for distributional sources modelling, named KDSource. It is mainly oriented to shielding and/or particle beams calculations, and allows communication with several Monte Carlo codes, with special focus on McStas and TRIPOLI. A tools package for general modelling of particle sources by Kernel Density Estimation was developed, being said method an overcomer of the previously used histograms technique. The sources are based on tracks lists captured in Monte Carlo simulations, and allow unlimited new particles generation respecting the estimated distribution, without repetitions. The package is composed of a Python library, through which analysis and optimization of sources is performed, and a C library, by means of which new particles are generated. It also includes a command line application and a set of auxiliary files which help sources utilization. The tool’s main benefits, in Monte Carlo simulations, are variance reduction and coupling between codes. The tool operation and utility was demonstrated in a shielding calculation on a conceptual neutron guide design, based on GF1 beam of RA10 reactor. The calculation included coupling between optics and radiation transport, and allowed to obtain dose maps caused by neutrons, prompt photons, source photones and activation photons at positions distant from the core.
| Tipo de objeto: | Tesis (Maestría en Ingeniería) |
|---|---|
| Palabras Clave: | Shielding; Brindaje; Monte Carlo method; Método Monte Carlo; [KDE; McStas; TRIPOLI] |
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| Materias: | Ingeniería mecánica > Cálculo de blindajes |
| Divisiones: | Energía nuclear > Ingeniería nuclear > Física de reactores y radiaciones |
| Código ID: | 1043 |
| Depositado Por: | Tamara Cárcamo |
| Depositado En: | 09 Jun 2022 15:14 |
| Última Modificación: | 09 Jun 2022 15:14 |
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