The Thorium fuel cycle in nuclear reactors

This thesis explores the potential of thorium-based nuclear fuels in Pressurized Water Reactors (PWRs), focusing on the thorium fuel cycle and its various implementations. The research investigates the benefits and challenges associated with thorium fuel, including its higher conversion ratios, impr...

Full description

Autores:
García Eslava, Frank Worman
Tipo de recurso:
Trabajo de grado de pregrado
Fecha de publicación:
2024
Institución:
Universidad de los Andes
Repositorio:
Séneca: repositorio Uniandes
Idioma:
eng
OAI Identifier:
oai:repositorio.uniandes.edu.co:1992/75840
Acceso en línea:
https://hdl.handle.net/1992/75840
Palabra clave:
Thorium fuel cycle
Pressurized Water Reactor
Uranium-233
Nuclear fuel
Re- actor simulation
OpenMC
Sustainable energy
Thorium Molten Salt Reactors
Ciclo del combustible de torio
Reactor de Agua Presurizada
Uranio-233
Combustible nuclear
Simulación de reactores
Energı́a sostenible
Reactores de Sales Fundidas de Torio
Física
Rights
openAccess
License
https://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdf
id UNIANDES2_bebe2fe54b561dba1bec6eef6e08ed49
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network_acronym_str UNIANDES2
network_name_str Séneca: repositorio Uniandes
repository_id_str
dc.title.eng.fl_str_mv The Thorium fuel cycle in nuclear reactors
dc.title.alternative.spa.fl_str_mv Reactores Nucleares Basados en el Ciclo de Combustible del Torio
title The Thorium fuel cycle in nuclear reactors
spellingShingle The Thorium fuel cycle in nuclear reactors
Thorium fuel cycle
Pressurized Water Reactor
Uranium-233
Nuclear fuel
Re- actor simulation
OpenMC
Sustainable energy
Thorium Molten Salt Reactors
Ciclo del combustible de torio
Reactor de Agua Presurizada
Uranio-233
Combustible nuclear
Simulación de reactores
Energı́a sostenible
Reactores de Sales Fundidas de Torio
Física
title_short The Thorium fuel cycle in nuclear reactors
title_full The Thorium fuel cycle in nuclear reactors
title_fullStr The Thorium fuel cycle in nuclear reactors
title_full_unstemmed The Thorium fuel cycle in nuclear reactors
title_sort The Thorium fuel cycle in nuclear reactors
dc.creator.fl_str_mv García Eslava, Frank Worman
dc.contributor.advisor.none.fl_str_mv Sanabria Arenas, Juan Carlos
dc.contributor.author.none.fl_str_mv García Eslava, Frank Worman
dc.contributor.jury.none.fl_str_mv Hernández Pico, Yenny Rocio
dc.subject.keyword.eng.fl_str_mv Thorium fuel cycle
topic Thorium fuel cycle
Pressurized Water Reactor
Uranium-233
Nuclear fuel
Re- actor simulation
OpenMC
Sustainable energy
Thorium Molten Salt Reactors
Ciclo del combustible de torio
Reactor de Agua Presurizada
Uranio-233
Combustible nuclear
Simulación de reactores
Energı́a sostenible
Reactores de Sales Fundidas de Torio
Física
dc.subject.keyword.none.fl_str_mv Pressurized Water Reactor
Uranium-233
Nuclear fuel
Re- actor simulation
OpenMC
Sustainable energy
Thorium Molten Salt Reactors
Ciclo del combustible de torio
Reactor de Agua Presurizada
Uranio-233
Combustible nuclear
Simulación de reactores
Energı́a sostenible
Reactores de Sales Fundidas de Torio
dc.subject.themes.spa.fl_str_mv Física
description This thesis explores the potential of thorium-based nuclear fuels in Pressurized Water Reactors (PWRs), focusing on the thorium fuel cycle and its various implementations. The research investigates the benefits and challenges associated with thorium fuel, including its higher conversion ratios, improved thermal properties, and intrinsic proliferation resistance. The study includes detailed simulations using OpenMC to analyze the behavior of thorium oxide (ThOX) with uranium-233 (233 U ) at different concentrations. The results demonstrate that while thorium-based fuels can achieve breeding, maintaining criticality presents challenges. The thesis also examines the impact of fuel composition and concentration on reactor performance and safety. The findings suggest that optimizing these parameters is crucial for enhancing the performance and safety of thorium-based fuels. The research concludes with a discussion on the future prospects of thorium in the nuclear industry and the need for further research and development to fully realize its potential as a sustainable nuclear fuel.
publishDate 2024
dc.date.issued.none.fl_str_mv 2024-12-09
dc.date.accessioned.none.fl_str_mv 2025-01-30T15:38:23Z
dc.date.available.none.fl_str_mv 2025-01-30T15:38:23Z
dc.type.none.fl_str_mv Trabajo de grado - Pregrado
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/bachelorThesis
dc.type.version.none.fl_str_mv info:eu-repo/semantics/acceptedVersion
dc.type.coar.none.fl_str_mv http://purl.org/coar/resource_type/c_7a1f
dc.type.content.none.fl_str_mv Text
dc.type.redcol.none.fl_str_mv http://purl.org/redcol/resource_type/TP
format http://purl.org/coar/resource_type/c_7a1f
status_str acceptedVersion
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/1992/75840
dc.identifier.instname.none.fl_str_mv instname:Universidad de los Andes
dc.identifier.reponame.none.fl_str_mv reponame:Repositorio Institucional Séneca
dc.identifier.repourl.none.fl_str_mv repourl:https://repositorio.uniandes.edu.co/
url https://hdl.handle.net/1992/75840
identifier_str_mv instname:Universidad de los Andes
reponame:Repositorio Institucional Séneca
repourl:https://repositorio.uniandes.edu.co/
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.references.none.fl_str_mv T. J. Dolan, Molten Salt Reactors and Thorium Energy, 1st ed., Woodhead Publishing, 2017. ISBN: 9780081011263.
J. R. Lamarsh y A. J. Baratta, Introduction to nuclear engineering, Prentice Hall; Pearson Education distributor, 2009.
K. Kornecki y C. F. Wise, "The role of advanced nuclear reactors and fuel cycles in a future energy system," PNAS Nexus, vol. 3, n.º 2, enero 2024. DOI: 10.1093/pnasnexus/pgae030.
E. E. Lewis, Fundamentals of Nuclear Reactor Physics, Elsevier e-books, Amsterdam, 2014.
W. M. Stacey, Nuclear reactor physics, Wiley-VCH-Verl, Weinheim, 2010.
J.-L. Basdevant, J. Rich y M. Spiro, Fundamentals in nuclear physics: from nuclear structure to cosmology, 1st ed., Springer, 2005. ISBN: 9780387016726.
K. S. Krane, Introductory Nuclear Physics, 2nd ed., John Wiley, 1988. ISBN: 9780471805533.
International Atomic Energy Agency, Thorium Fuel Cycle — Potential Benefits and Challenges, IAEA-TECDOC-1450, Vienna, Austria, 2005. ISBN: 92-0-103405-9. URL: https://www.iaea.org/publications/7196/thorium-fuel-cycle-potential-benefits-and-challenges.
A. Asghari, "The Water Neutron Detector (WaND)," 2016. URL: https://api.semanticscholar.org/CorpusID:100282839.
National Nuclear Data Center, "National Nuclear Data Center," 2024. URL: https://www.nndc.bnl.gov/. Accessed: 2024-08-24.
J. C. Sanabria, "Reactores nucleares - Notas de clase," 2021. Unpublished.
P. Mohanakrishnan (editor), O. P. Singh (editor) y K. Umasankari (editor), Physics of Nuclear Reactors, 1st ed., Academic Press, 2021. ISBN: 9780128224410.
B. S. Tomar, P. R. Vasudeva Rao, S. B. Roy, J. P. Panakkal, K. Raj y A. N. Nandakumar, Nuclear Fuel Cycle, Springer, 2023. ISBN: 9789819909483.
E. E. Lewis, Fundamentals of Nuclear Reactor Physics, Academic Press, 2008. ISBN: 9780123706317.
U. E. Humphrey y M. U. Khandaker, "Viability of thorium-based nuclear fuel cycle for the next generation nuclear reactor: Issues and prospects," Renewable and Sustainable Energy Reviews, vol. 97, págs. 259-275, 2018. DOI: https://doi.org/10.1016/j.rser.2018.08.019. URL: https://www.sciencedirect.com/science/article/pii/S1364032118305951.
INTERNATIONAL ATOMIC ENERGY AGENCY, Thorium Fuel Cycle - Potential Benefits and Challenges, TECDOC Series, n.º 1450, Vienna, 2005. ISBN: 92-0-103405-9. URL: https://www.iaea.org/publications/7192/thorium-fuel-cycle-potential-benefits-and-challenges.
Servicio Geológico Colombiano, "Atlas Geoquímico de Colombia: Concentración de Torio (Th)," Bogotá: Servicio Geológico Colombiano, versión 2020. URL: https://www.sgc.gov.co.
Deutsches Institut für Normung e.V. (DIN), "Measurement of radioactivity in the environment - Air: radon-222 Pt 11: Test method for soil gas with sampling at depth (ISO 11665-11:2016); German version EN ISO 11665-11:2019," Beuth Verlag, Berlin, Germany, 2020.
Haynes International Inc., "Nickel Alloy Brochure," 2024. URL: https://haynesintl.com/wp-content/uploads/2024/05/n-brochure.pdf. Accessed: 2024-10-07.
D. A. Andersson, C. R. Stanek, C. Matthews y otros, "The past, present, and future of nuclear fuel," MRS Bulletin, vol. 48, págs. 1154-1162, 2023. DOI: 10.1557/s43577-023-00631-3. URL: https://doi.org/10.1557/s43577-023-00631-3.
INTERNATIONAL ATOMIC ENERGY AGENCY, Performance Analysis Review of Thorium TRISO Coated Particles During Manufacture, Irradiation and Accident Condition Heating Tests, TECDOC Series, n.º 1761, Vienna, 2015. ISBN: 978-92-0-100715-5. URL: https://www.iaea.org/publications/10844/performance-analysis-review-of-thorium-triso-coated-particles-during-manufacture-irradiation-and-accident-condition-heating-tests.
H. Xu, "The Development of TMSR Technology in China," 2017. URL: https://www.gen-4.org/gif/upload/docs/application/pdf/2017-05/03_hongjie_xu_china.pdf. Accessed: 2024-10-07.
P. V. Achuthan y A. Ramanujam, "Aqueous Reprocessing by THOREX Process," en Thoria-based Nuclear Fuels: Thermophysical and Thermodynamic Properties, Fabrication, Reprocessing, and Waste Management, eds. D. Das y S. R. Bharadwaj, Springer London, London, 2013, págs. 279-333.
I. Pázsit, A. Jonsson y L. Pál, "Analytical solutions of the molten salt reactor equations," Annals of Nuclear Energy, vol. 50, págs. 206-214, 2012. DOI: https://doi.org/10.1016/j.anucene.2012.05.037. URL: https://www.sciencedirect.com/science/article/pii/S030645491200237X.
P. K. Romano, N. E. Horelik, B. R. Herman, A. G. Nelson, B. Forget y K. Smith, "OpenMC: A state-of-the-art Monte Carlo code for research and development," Annals of Nuclear Energy, vol. 82, págs. 90-97, 2015. DOI: https://doi.org/10.1016/j.anucene.2014.07.048. URL: https://www.sciencedirect.com/science/article/pii/S030645491400379X.
C. Josey, B. Forget y K. Smith, "High order methods for the integration of the Bateman equations and other problems of the form of y=F(y,t)y," Journal of Computational Physics, vol. 350, págs. 296-313, 2017. DOI: https://doi.org/10.1016/j.jcp.2017.08.025. URL: https://www.sciencedirect.com/science/article/pii/S002199911730596X.
The OpenMC Development Team, "OpenMC Documentation," 2024. URL: https://docs.openmc.org/en/stable/. Accessed: 2024-10-07.
The HDF Group, "HDF5 Documentation," 2024. URL: https://support.hdfgroup.org/documentation/. Accessed: 2024-10-07.
C. W. Lau, C. Demazière, H. Nylén y U. Sandberg, "Improvement of LWR thermal margins by introducing thorium," Progress in Nuclear Energy, vol. 61, págs. 48-56, 2012. DOI: https://doi.org/10.1016/j.pnucene.2012.07.004. URL: https://www.sciencedirect.com/science/article/pii/S0149197012000972.
S. Si, "Roadmap Design for Thorium-Uranium Breeding Recycle in PWR," International Atomic Energy Agency (IAEA), Vienna, Austria, 2011.
C. W. Lau, C. Demazière, H. Nylén y U. Sandberg, "Improvement of LWR thermal margins by introducing thorium," Progress in Nuclear Energy, vol. 61, págs. 48-56, 2012. DOI: https://doi.org/10.1016/j.pnucene.2012.07.004. URL: https://www.sciencedirect.com/science/article/pii/S0149197012000972.
A. F. Porras-Ríos y J. de J. Díaz-Velásquez, "El uranio como recurso energético y su actualidad minera en Colombia," DYNA, vol. 86, n.º 208, págs. 362-367.
NEA, Uranium 2011: Resources, Production and Demand, OECD Publishing, Paris, 2012.
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spelling Sanabria Arenas, Juan Carlosvirtual::22757-1García Eslava, Frank WormanHernández Pico, Yenny Rociovirtual::22758-12025-01-30T15:38:23Z2025-01-30T15:38:23Z2024-12-09https://hdl.handle.net/1992/75840instname:Universidad de los Andesreponame:Repositorio Institucional Sénecarepourl:https://repositorio.uniandes.edu.co/This thesis explores the potential of thorium-based nuclear fuels in Pressurized Water Reactors (PWRs), focusing on the thorium fuel cycle and its various implementations. The research investigates the benefits and challenges associated with thorium fuel, including its higher conversion ratios, improved thermal properties, and intrinsic proliferation resistance. The study includes detailed simulations using OpenMC to analyze the behavior of thorium oxide (ThOX) with uranium-233 (233 U ) at different concentrations. The results demonstrate that while thorium-based fuels can achieve breeding, maintaining criticality presents challenges. The thesis also examines the impact of fuel composition and concentration on reactor performance and safety. The findings suggest that optimizing these parameters is crucial for enhancing the performance and safety of thorium-based fuels. The research concludes with a discussion on the future prospects of thorium in the nuclear industry and the need for further research and development to fully realize its potential as a sustainable nuclear fuel.Esta tesis explora el potencial de los combustibles nucleares basados en torio en los Reactores de Agua Presurizada (PWRs), enfocándose en el ciclo del combustible de torio y sus diversas implementaciones. El proyecto investiga los beneficios y desafíos asociados con el combustible de torio, incluyendo sus mayores ratios de conversión, mejores propiedades térmicas y resistencia intrı́nseca a la proliferación. El estudio incluye simulaciones detalladas utilizando OpenMC para analizar el comportamiento del óxido de torio (ThOX) con uranio-233 (233 U ) en diferentes concentraciones. Los resultados demuestran que, aunque los combustibles basados en torio pueden lograr tasas de producción de isotopos fisiles positivas, mantener la criticidad presenta desafı́os. La tesis también examina el impacto de la composición y concentración del combustible en el rendimiento y la seguridad del reactor. Los hallazgos sugieren que optimizar estos parámetros es crucial para mejorar el rendimiento y la seguridad de los combustibles basados en torio. La investigación concluye con una discusión sobre las perspectivas futuras del torio en la industria nuclear y la necesidad de más investigación y desarrollo para realizar plenamente su potencial como un combustible nuclear sostenible.Pregrado113 páginasapplication/pdfengUniversidad de los AndesFísicaFacultad de CienciasDepartamento de Físicahttps://repositorio.uniandes.edu.co/static/pdf/aceptacion_uso_es.pdfinfo:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2The Thorium fuel cycle in nuclear reactorsReactores Nucleares Basados en el Ciclo de Combustible del TorioTrabajo de grado - Pregradoinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_7a1fTexthttp://purl.org/redcol/resource_type/TPThorium fuel cyclePressurized Water ReactorUranium-233Nuclear fuelRe- actor simulationOpenMCSustainable energyThorium Molten Salt ReactorsCiclo del combustible de torioReactor de Agua PresurizadaUranio-233Combustible nuclearSimulación de reactoresEnergı́a sostenibleReactores de Sales Fundidas de TorioFísicaT. J. Dolan, Molten Salt Reactors and Thorium Energy, 1st ed., Woodhead Publishing, 2017. ISBN: 9780081011263.J. R. Lamarsh y A. J. Baratta, Introduction to nuclear engineering, Prentice Hall; Pearson Education distributor, 2009.K. Kornecki y C. F. Wise, "The role of advanced nuclear reactors and fuel cycles in a future energy system," PNAS Nexus, vol. 3, n.º 2, enero 2024. DOI: 10.1093/pnasnexus/pgae030.E. E. Lewis, Fundamentals of Nuclear Reactor Physics, Elsevier e-books, Amsterdam, 2014.W. M. Stacey, Nuclear reactor physics, Wiley-VCH-Verl, Weinheim, 2010.J.-L. Basdevant, J. Rich y M. Spiro, Fundamentals in nuclear physics: from nuclear structure to cosmology, 1st ed., Springer, 2005. ISBN: 9780387016726.K. S. Krane, Introductory Nuclear Physics, 2nd ed., John Wiley, 1988. ISBN: 9780471805533.International Atomic Energy Agency, Thorium Fuel Cycle — Potential Benefits and Challenges, IAEA-TECDOC-1450, Vienna, Austria, 2005. ISBN: 92-0-103405-9. URL: https://www.iaea.org/publications/7196/thorium-fuel-cycle-potential-benefits-and-challenges.A. Asghari, "The Water Neutron Detector (WaND)," 2016. URL: https://api.semanticscholar.org/CorpusID:100282839.National Nuclear Data Center, "National Nuclear Data Center," 2024. URL: https://www.nndc.bnl.gov/. Accessed: 2024-08-24.J. C. Sanabria, "Reactores nucleares - Notas de clase," 2021. Unpublished.P. Mohanakrishnan (editor), O. P. Singh (editor) y K. Umasankari (editor), Physics of Nuclear Reactors, 1st ed., Academic Press, 2021. ISBN: 9780128224410.B. S. Tomar, P. R. Vasudeva Rao, S. B. Roy, J. P. Panakkal, K. Raj y A. N. Nandakumar, Nuclear Fuel Cycle, Springer, 2023. ISBN: 9789819909483.E. E. Lewis, Fundamentals of Nuclear Reactor Physics, Academic Press, 2008. ISBN: 9780123706317.U. E. Humphrey y M. U. Khandaker, "Viability of thorium-based nuclear fuel cycle for the next generation nuclear reactor: Issues and prospects," Renewable and Sustainable Energy Reviews, vol. 97, págs. 259-275, 2018. DOI: https://doi.org/10.1016/j.rser.2018.08.019. URL: https://www.sciencedirect.com/science/article/pii/S1364032118305951.INTERNATIONAL ATOMIC ENERGY AGENCY, Thorium Fuel Cycle - Potential Benefits and Challenges, TECDOC Series, n.º 1450, Vienna, 2005. ISBN: 92-0-103405-9. URL: https://www.iaea.org/publications/7192/thorium-fuel-cycle-potential-benefits-and-challenges.Servicio Geológico Colombiano, "Atlas Geoquímico de Colombia: Concentración de Torio (Th)," Bogotá: Servicio Geológico Colombiano, versión 2020. URL: https://www.sgc.gov.co.Deutsches Institut für Normung e.V. (DIN), "Measurement of radioactivity in the environment - Air: radon-222 Pt 11: Test method for soil gas with sampling at depth (ISO 11665-11:2016); German version EN ISO 11665-11:2019," Beuth Verlag, Berlin, Germany, 2020.Haynes International Inc., "Nickel Alloy Brochure," 2024. URL: https://haynesintl.com/wp-content/uploads/2024/05/n-brochure.pdf. Accessed: 2024-10-07.D. A. Andersson, C. R. Stanek, C. Matthews y otros, "The past, present, and future of nuclear fuel," MRS Bulletin, vol. 48, págs. 1154-1162, 2023. DOI: 10.1557/s43577-023-00631-3. URL: https://doi.org/10.1557/s43577-023-00631-3.INTERNATIONAL ATOMIC ENERGY AGENCY, Performance Analysis Review of Thorium TRISO Coated Particles During Manufacture, Irradiation and Accident Condition Heating Tests, TECDOC Series, n.º 1761, Vienna, 2015. ISBN: 978-92-0-100715-5. URL: https://www.iaea.org/publications/10844/performance-analysis-review-of-thorium-triso-coated-particles-during-manufacture-irradiation-and-accident-condition-heating-tests.H. Xu, "The Development of TMSR Technology in China," 2017. URL: https://www.gen-4.org/gif/upload/docs/application/pdf/2017-05/03_hongjie_xu_china.pdf. Accessed: 2024-10-07.P. V. Achuthan y A. Ramanujam, "Aqueous Reprocessing by THOREX Process," en Thoria-based Nuclear Fuels: Thermophysical and Thermodynamic Properties, Fabrication, Reprocessing, and Waste Management, eds. D. Das y S. R. Bharadwaj, Springer London, London, 2013, págs. 279-333.I. Pázsit, A. Jonsson y L. Pál, "Analytical solutions of the molten salt reactor equations," Annals of Nuclear Energy, vol. 50, págs. 206-214, 2012. DOI: https://doi.org/10.1016/j.anucene.2012.05.037. URL: https://www.sciencedirect.com/science/article/pii/S030645491200237X.P. K. Romano, N. E. Horelik, B. R. Herman, A. G. Nelson, B. Forget y K. Smith, "OpenMC: A state-of-the-art Monte Carlo code for research and development," Annals of Nuclear Energy, vol. 82, págs. 90-97, 2015. DOI: https://doi.org/10.1016/j.anucene.2014.07.048. URL: https://www.sciencedirect.com/science/article/pii/S030645491400379X.C. Josey, B. Forget y K. Smith, "High order methods for the integration of the Bateman equations and other problems of the form of y=F(y,t)y," Journal of Computational Physics, vol. 350, págs. 296-313, 2017. DOI: https://doi.org/10.1016/j.jcp.2017.08.025. URL: https://www.sciencedirect.com/science/article/pii/S002199911730596X.The OpenMC Development Team, "OpenMC Documentation," 2024. URL: https://docs.openmc.org/en/stable/. Accessed: 2024-10-07.The HDF Group, "HDF5 Documentation," 2024. URL: https://support.hdfgroup.org/documentation/. Accessed: 2024-10-07.C. W. Lau, C. Demazière, H. Nylén y U. Sandberg, "Improvement of LWR thermal margins by introducing thorium," Progress in Nuclear Energy, vol. 61, págs. 48-56, 2012. DOI: https://doi.org/10.1016/j.pnucene.2012.07.004. URL: https://www.sciencedirect.com/science/article/pii/S0149197012000972.S. Si, "Roadmap Design for Thorium-Uranium Breeding Recycle in PWR," International Atomic Energy Agency (IAEA), Vienna, Austria, 2011.C. W. Lau, C. Demazière, H. Nylén y U. Sandberg, "Improvement of LWR thermal margins by introducing thorium," Progress in Nuclear Energy, vol. 61, págs. 48-56, 2012. DOI: https://doi.org/10.1016/j.pnucene.2012.07.004. URL: https://www.sciencedirect.com/science/article/pii/S0149197012000972.A. F. Porras-Ríos y J. de J. Díaz-Velásquez, "El uranio como recurso energético y su actualidad minera en Colombia," DYNA, vol. 86, n.º 208, págs. 362-367.NEA, Uranium 2011: Resources, Production and Demand, OECD Publishing, Paris, 2012.201912534Publicationhttps://scholar.google.es/citations?user=KXWwfMMAAAAJvirtual::22758-10000-0002-6980-8820virtual::22758-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000008419virtual::22757-1https://scienti.minciencias.gov.co/cvlac/visualizador/generarCurriculoCv.do?cod_rh=0000318566virtual::22758-12e3cac64-ccc2-42c3-b3f9-2ef8e094ba71virtual::22757-12e3cac64-ccc2-42c3-b3f9-2ef8e094ba71virtual::22757-15ec439ad-c826-485e-8b94-d4fe2bfc1017virtual::22758-15ec439ad-c826-485e-8b94-d4fe2bfc1017virtual::22758-1ORIGINALThorium fuel cycle in nuclear reactors.pdfThorium fuel cycle in nuclear reactors.pdfapplication/pdf1393092https://repositorio.uniandes.edu.co/bitstreams/fa8de7c6-3269-4647-87e4-177cd4625ad6/download27d1011045bf45a02c42e3dfab404494MD51autorizacion_tesis_filled.pdfautorizacion_tesis_filled.pdfHIDEapplication/pdf285783https://repositorio.uniandes.edu.co/bitstreams/4c2b5816-bc5d-43c4-ad04-1778181324ab/downloadb7fc8c180fc97fcdea6a307ff5bd9295MD53LICENSElicense.txtlicense.txttext/plain; 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