Projects per year
Personal profile
Research Interests
Recent research:
The research focuses on the application of Monte Carlo methods for radiation transport, shielding design, and dosimetry across diverse nuclear and medical environments. A significant portion of the work involves the development and validation of thermal neutron irradiation facilities, such as the FANT system, utilizing isotopic sources and benchmarking various nuclear data libraries to optimize neutron fluence and spectral uniformity. In the medical sector, the research addresses the radiological challenges of proton therapy, specifically characterizing secondary neutron fields, optimizing shielding for compact proton therapy centers, and assessing the activation of structural materials and environmental media to inform decommissioning strategies. Furthermore, the work extends to operational radiation protection, including the computational characterization of neutron area monitors and rem-meters for high-energy environments. Additional contributions include the application of neutron activation analysis for the detection of illicit substances and the optimization of capacitive sensor designs through electrostatic modeling.
Key Topics:
The research focuses on the application of Monte Carlo methods for radiation transport, shielding design, and dosimetry across diverse nuclear and medical environments. A significant portion of the work involves the development and validation of thermal neutron irradiation facilities, such as the FANT system, utilizing isotopic sources and benchmarking various nuclear data libraries to optimize neutron fluence and spectral uniformity. In the medical sector, the research addresses the radiological challenges of proton therapy, specifically characterizing secondary neutron fields, optimizing shielding for compact proton therapy centers, and assessing the activation of structural materials and environmental media to inform decommissioning strategies. Furthermore, the work extends to operational radiation protection, including the computational characterization of neutron area monitors and rem-meters for high-energy environments. Additional contributions include the application of neutron activation analysis for the detection of illicit substances and the optimization of capacitive sensor designs through electrostatic modeling.
Key Topics:
- Monte Carlo radiation transport modeling
- Proton therapy shielding and dosimetry
- Neutron activation analysis
- Radiation protection and shielding optimization
- Thermal neutron facility development
- Neutron detector characterization
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 16 Peace, Justice and Strong Institutions
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Collaborations and top research areas from the last five years
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Model of an Integrated System of Electrolyzer and Seawater Desalination Unit in an Exchanger Using Waste Heat for Efficient and Sustainable Hydrogen Production (SIEDICH)
Ampuño Aviles, G. O. (PI), Naranjo Sanchez, R. A. (Col), Barcia Ayala, O. G. (Col), Cevallos Robalino, L. E. (Col), Larco Torres, V. D. (Col), Sanchez Rivas, P. J. (Student), Sanchez Corozo, D. A. (Student), Vera De La Cruz, P. M. (Student), Urgiles Pincay, E. M. (Student), Hinostroza Flores, A. E. (Student), Martinez Chagray, A. J. (Student) & Coello Miñoz, A. A. (Student)
1/10/25 → …
Project: Research and Development
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Construction of a Micro-Electro-Hydrodynamic System (MEHS) for Guided Delivery of Nanomaterials
Barcia Ayala, O. G. (Col), Cevallos Robalino, L. E. (PI), Veliz Noboa, B. M. (Col), Larco Torres, V. D. (Col), Perez Ordoñez, R. E. (Col), Ramírez Castro, A. F. (Student), Alvear Benavides, J. G. (Student), Jurado Cobo, J. F. (Student), Cabrera Mosquera, J. A. (Student), Camacho Moran, J. S. (Student) & Gomez Bravo, D. A. (Student)
21/03/23 → …
Project: Research and Development
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Characterization of Nanoparticles and Design of a Microfluidic System for an Electrospray Station (MICNA)
Barcia Ayala, O. G. (Col), Cevallos Robalino, L. E. (Col), Veliz Noboa, B. M. (PI), Lopez Troya, M. E. (Student), Torres Trelles, M. I. (Student), Dueñas Miranda, R. A. (Student), Torres Gavilanes, J. A. (Student), Espinoza Borja, A. E. (Student) & Montalvan Lalama, A. I. (Student)
9/06/21 → 9/09/22
Project: Research and Development
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Prompt gamma-rays induced in Methamphetamine, Fentanyl, Cocaine, and Heroin due to neutrons produced by 252Cf and a DT nuclear reaction
Vega-Carrillo, H. R., Marquez-Mata, C. A., Torres-Cortes, C. O., Baltazar-Raigosa, A., Cevallos-Robalino, L. E., Garcia-Fernandez, G. F., Al-Shelkamy, S. A. & Vasquez-Arteaga, M., Dec 2025, In: Radiation Physics and Chemistry. 237, 113038.Research output: Contribution to journal › Article › peer-review
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Comparison of H*(10) estimations, due to neutrons and γ-rays, around FANT with two 241Am/9Be sources
Cevallos Robalino, L. E., García Fernández, G. F., Gallego, E., Vega Carrillo, H. R., Carbonell, L. D. J., García Baonza, R. & Lorente, A., 2 Mar 2024, In: Applied Radiation and Isotopes. 205, 205, 6 p., 111159.Research output: Contribution to journal › Article › peer-review
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Benchmarking of stray neutron fields produced by synchrocyclotrons and synchrotrons in compact protontherapy centers (CPTC) using MCNP6 Monte Carlo code
García-Fernandez, G. F., Gallego, E., Gómez-Ros, J. M., Vega-Carrillo, H. R., Guzman-García, K. A., Cevallos-Robalino, L. E., García-Baonza, R. & Fuentes Hernández, E., Mar 2023, In: Applied Radiation and Isotopes. 193, 110645.Research output: Contribution to journal › Article › peer-review
7 Link opens in a new tab Scopus citations -
Comparative Analysis of Shielding Activation in Three Types of Compact Proton Therapy Centers (CPTC)
García Fernández, G. F., Cabellos De Francisco, O. L., Cevallos Robalino, L. E. & Gallego, E., 16 Oct 2023.Research output: Contribution to conference › Paper
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Comparison of extended-range and conventional Bonner Sphere Spectrometers (BSS) in an AmBe neutron field – Applicability of the ReBUNKI unfolding code for extended-range BSS
García-Baonza, R., Lorente, A., Ibáñez, S., Lacerda, M. A. S., Machado, I. A., Gallego, E., García-Fernández, G. F., Cevallos-Robalino, L. E. & Vega-Carrillo, H. R., Feb 2023, In: Radiation Physics and Chemistry. 203, 110647.Research output: Contribution to journal › Article › peer-review
10 Link opens in a new tab Scopus citations