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Listar *Documentos Académicos*-- UA Ciencias Nucleares por título

Listar *Documentos Académicos*-- UA Ciencias Nucleares por título

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  • NaI(Tl) Scintillator's Response Functions for Point-like and Distributed Gamma-ray Sources 
    Vega Carrillo, Héctor René; Benites Rengifo, Jorge Luís; Hernández Dávila, Víctor Martín; Ortíz Rodríguez, José Manuel; de León Martínez, Héctor Asael (Chitkara University, 2016-08)
    The response functions of a NaI(Tl) detectors have been estimated using Monte Carlo methods. Response functions were calculated for monoenergetic photon sources (0.05 to 3 MeV). Responses were calculated for point-like ...
  • Neutron absorbed dose in a pacemaker CMOS 
    Borja Hernández, Candy Gretel; Guzmán García, Karen Arlete; Bañuelos Frías, Alan; Paredes Gutiérrez, Lydia; Hernández Dávila, Víctor Manuel; Vega Carrillo, Héctor René (Sociedad Mexicana de Física, A.C., 2012-06)
    El espectro y la dosis absorbida, debida a neutrones, por un Semiconductor de O´ xido Meta´lico Complementario ha sido estimada utilizando m´etodos Monte Carlo. Eventualmente, una persona con marcapasos se convierte en ...
  • Neutron area monitor with passive detector 
    Valero Luna, Claudia; Guzmán García, Karen Arlete; Borja Hernández, Candy Gretel; Hernández Dávila, Víctor Martín; Vega Carrillo, Héctor René (Sociedad Mexicana de Física, A.C. Departamento de Física, 2o. Piso, Facultad de Ciencias, UN, 2012-06)
    Se utilizó el método de Monte Carlo para calcular las respuestas de un monitor de neutrones pasivo. Para detectar los neutrones térmicos el monitor tiene una l´amina de oro que se encuentra en el centro de un cilindro de ...
  • Neutron Dosimetry in Solid Water Phantom 
    Benites Rengifo, Jorge Luís; Vega Carrillo, Héctor René (AIP Publishing, 2014)
    The neutron spectra, the Kerma and the absorbed dose due to neutrons were estimated along the incoming beam in a solid water phantom. Calculations were carried out with the MCNP5 code, where the bunker, the phantom and ...
  • Neutron features at the UPM neutronics hall 
    Vega Carrillo, Héctor René; Gallego Díaz, Eduardo; Lorente, Alfredo; Rubio, Isabel; Mendez, Roberto (Elsevier, 2012-08)
    The neutronics hall of the Nuclear Engineering Department at the Polytechnical University of Madrid has been characterized. The neutron spectra and the ambient dose equivalent produced by an 241AmBe source were measured ...
  • Neutron field characteristics of Ciemat´s Neutron Standards Laboratoy 
    Guzmán García, Karen Arlete; Mendez Villafañe, Roberto; Vega Carrillo, Héctor René (Elsevier, 2015-06)
    Monte Carlo calcultarions were carried out to characterized the neutron field produced by the calibration neutron sources of the Neutron Standards Laboratory at the Research Center for Energy, Environment and Technology ...
  • Neutron Kerma factor, and water equivalence of some tissue substitutes 
    Singh, Vishwanath; Badiger, Nagappa; Vega Carrillo, Héctor René (Universidad Autónoma Metropolitana, 2014-04)
    The kerma factors and kerma relative to air and water of 24 compounds used as tissue substitutes were calculated for neutron energy from 2.53x10-8 up to 29 MeV. The kerma ratio of the tissue substitutes relative to air ...
  • Neutron room return effect 
    Vega Carrillo, Héctor René; Manzanares Acuña, Eduardo; Lorente, Alfredo; Barquero, Roberto; Martin Martin, Alonso; Gutiérrez Villanueva, José Luís (Sociedad Mexicana de Física, A.C., 2008-02)
    El coeficiente que relaciona la intensidad de una fuente de neutrones y el area de la superficie interna de un recinto con la tasa de fluencia ´ de los neutrones termicos ha sido calculado para neutrones monoenerg ´ eticos ...
  • Neutron spectra and dosimetric assessment around a neutron Howitzer container 
    Barros, Silvia; Gallego Díaz, Eduardo; Lorente, Alfredo; Goncalves, Isabel; Vaz, Pedro; Vega Carrillo, Héctor René; Zankl, Maria (Elsevier, 2014-04)
    The neutron Howitzer container at the Neutron Measurements Laboratory of the Nuclear Engineering Department of the Polytechnic University of Madrid (UPM), is equipped with a 241Am-Be neutron source of 74 GBq in its center. ...
  • Neutron spectra and dosimetric features around an 18 MV Linac accelerator 
    Barquero, Raquel; Mendez, Roberto; Vega Carrillo, Héctor René; Iñiguez de la Torre, María Pilar; Edwards, Taryn (Health Physics Society, 2005-01)
    Using the difference between responses to neutrons of TLD-600 and TLD-700, three experimental devices were constructed and arranged to measure thermal neutron fluences, neutron spectra, and neutron doses inside the treatment ...
  • Neutron spectra and H*(10) around an 18 MV LINAC by ANNs 
    Bañuelos Frías, Alan; Valero Luna, Claudia; Borja Hernández, Candy Gretel; Hernández Dávila, Víctor Manuel; Vega Carrillo, Héctor René (Universidad Autónoma Metropolitana, 2011-09)
    Neutron spectra and ambient dose equivalent H*(10) were calculated for a radiotherapy room in 16 point-like detectors, 15 located inside the vault room and 1 located outside the bunker. The calculation was carried out ...
  • Neutron spectra and H*(10) of photoneutrons inside the vault room of an 18 MV LINAC 
    Bañuelos Frías, Alan; Borja Hernández, Candy Gretel; Guzmán García, Karen Arlete; Valero Luna, Claudia; Hernández Dávila, Víctor Manuel; Vega Carrillo, Héctor René (Sociedad Mexicana de Física, A.C., 2012-06)
    El espectro de neutrones y el equivalente de dosis ambiental fueron estimados dentro de una sala de radioterapia con un Linac de 18 MV. Las estimaciones se llevaron a cabo utilizando m´etodos Monte Carlo donde una sala ...
  • Neutron spectra from Neutron Standards Laboratory (LPN/CIEMAT) sources with two Bonner sphere spectrometers 
    Mendez Villafañe, Roberto; Lacerda, Marco Aurelio; Campo, Xandra; Lorente, Alfredo; Ibañez Fernández, Sviatoslav; Gallego Díaz, Eduardo; Vega Carrillo, Héctor René (Elsevier, 2019-02)
    The Neutron Standards Laboratory (LPN: Laboratorio de Patrones Neutrónicos) of the Ionizing Radiation Metrology Laboratory (LMRI) of the CIEMAT (Centro de Investigaciones Energéticas Medioambientales y Tecnológicas) has ...
  • Neutron spectra re-binning and dose calculation using Monte Carlo methods 
    Vega Carrillo, Héctor René; Manzanares Acuña, Eduardo; Ortíz Rodríguez, José Manuel; Arteaga Arteaga, Tarcicio (Sociedad Mexicana de Física, A.C., 2007-02)
    One hundred thirty lethargy neutron spectra in 60 energy groups were converted to energy spectra and re-binned to 31 energy groups. Original spectra were taken form the compilation published by the IAEA and covers neutron ...
  • Neutron Spectra Unfolding with Artificial Neural Networks 
    Vega Carrillo, Héctor René; Hernández Dávila, Víctor Martín; Manzanares Acuña, Eduardo; Mercado Sánchez, Gema Alejandrina; Arteaga Arteaga, Tarcicio; Ortíz Rodríguez, José Manuel (Universidad Autónoma de Zacatecas, 2005-03)
    Se diseñó una red neuronal artificial para reconstruir los espectros de neutrones a partir de las tasas de conteo de un espectrómetro de Esferas de Bonner. La red neuronal se entrenó mediante un conjunto de espectros ...
  • Neutron spectrometry using artificial neural networks for a bonner sphere spectrometer with a 3He detector 
    Ortíz Rodríguez, José Manuel; Martínez Blanco, María del Rosario; Vega Carrillo, Héctor René; Gallego Díaz, Eduardo; Lorente, Alfredo; Mendez Villafañe, Roberto; Los arcos Merino, José María; Guerrero Araque, Jorge Enrique (Sociedad Mexicana de Física A.C., 2011-02)
    La reconstrucción de espectros de neutrones y el cálculo de los equivalentes de dosis dependen de la energía de los neutrones, y por ello es esencial un conocimiento preciso de la espectrometría de los neutrones para ...
  • Niveles de plomo en la población de alto riesgo y su entorno en San Ignacio, Fresnillo, Zacatecas, México 
    Manzanares Acuña, Eduardo; Vega Carrillo, Héctor René; Salas Luevano, Miguel Ángel; Hernández Dávila, Víctor Martín; Letechepía de León, Consuelo; Bañuelos Valenzuela, Romulo (Instituto Nacional de Salud Pública, 2006-05)
    Objetivo. Determinar la concentración de plomo en la sangre de niños y mujeres, en periodo de lactancia o embarazadas, de la comunidad de San Ignacio, Fresnillo, en Zacatecas, así como en matrices de suelo, plantas, ...
  • NSDann2BS, a neutron spectrum unfolding code based on neural networks technology and two bonner spheres 
    Ortíz Rodríguez, José Manuel; Reyes Alfaro, Arturo; Reyes Haro, Alfredo; Solís Sánchez, Luis Octavio; Castañeda Miranda, Rodrígo; Cervantes Miramontes, José Manuel; Vega Carrillo, Héctor René (AIP Publishing, 2013-07)
    In this work a neutron spectrum unfolding code, based on artificial intelligence technology is presented. The code called “Neutron Spectrometry and Dosimetry with Artificial Neural Networks and two Bonner spheres”, (NSDann2BS), ...
  • Optimización de redes neuronales artificiales para la reconstrucción del espectro de neutrones y sus dosis equivalentes 
    Reyes Alfaro, Arturo; Ortíz Rodríguez, José Manuel; Reyes Haro, Alfredo; Castañeda Miranda, Rodrígo; Solís Sánchez, Luis Octavio; Vega Carrillo, Héctor René (Universidad Autónoma Metropolitana, 2014-04)
    En el presente trabajo se utilizo la metodología de diseño robusto de redes neuronales artificiales para determinar una topología óptima de red capaz de resolver con eficiencia los problemas de espectrometría y dosimetría ...
  • Passive neutron area monitor with CR39 
    Vega Carrillo, Héctor René; Barquero, Raquel; Mercado Sánchez, Gema Alejandrina (Novin Medical Radiation Institute, 2013-07)
    In high-intensity, mixed and pulsed neutron fields the use of spectrometers or area monitors with ac ve detectors is useless; in these condi ons neutron measuring devices must have a passive detector. Here a passive ...

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