Juste Vidal, BJ.; Morató Rafet, S.; Miró Herrero, R.; Verdú Martín, GJ.; Diez Domingo, S. (2015). MCNP6 unstructured mesh application to estimate the photoneutron distribution and induced activity inside a linac bunker. Radiation Physics and Chemistry. 1-5. doi:10.1016/j.radphyschem.2016.03.016
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/87732
Title:
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MCNP6 unstructured mesh application to estimate the photoneutron distribution and induced activity inside a linac bunker
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Author:
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Juste Vidal, Belen Jeanine
Morato Rafet, Sergio
Miró Herrero, Rafael
Verdú Martín, Gumersindo Jesús
Diez Domingo, Sergio
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UPV Unit:
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Universitat Politècnica de València. Instituto de Seguridad Industrial, Radiofísica y Medioambiental - Institut de Seguretat Industrial, Radiofísica i Mediambiental
Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear
Universitat Politècnica de València. Departamento de Ingeniería Hidráulica y Medio Ambiente - Departament d'Enginyeria Hidràulica i Medi Ambient
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Issued date:
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Abstract:
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[EN] Unwanted neutrons in radiation therapy treatments are typically generated by photonuclear reactions. High-energy beams emitted by medical Linear Accelerators (LinAcs) interact with high atomic number materials situated ...[+]
[EN] Unwanted neutrons in radiation therapy treatments are typically generated by photonuclear reactions. High-energy beams emitted by medical Linear Accelerators (LinAcs) interact with high atomic number materials situated in the accelerator head and release neutrons. Since neutrons have a high relative biological effectiveness, even low neutron doses may imply significant exposure of patients. It is also important to study radioactivity induced by these photoneutrons when interacting with the different materials and components of the treatment head facility and the shielding room walls, since persons not present during irradiation (e.g. medical staff) may be exposed to them even when the accelerator is not operating.These problems are studied in this work in order to contribute to challenge the radiation protection in these treatment locations. The work has been performed by simulation using the latest state of the art of Monte-Carlo computer code MCNP6. To that, a detailed model of particles transport inside the bunker and treatment head has been carried out using a meshed geometry model. The LinAc studied is an Elekta Precise accelerator with a treatment photon energy of 15. MeV used at the Hospital Clinic Universitari de Valencia, Spain.
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Subjects:
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Bunker
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Induced activity
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LinAc
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MCNP6
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Photoneutron reactions
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Unstructured mesh
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Copyrigths:
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Reserva de todos los derechos
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Source:
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Radiation Physics and Chemistry. (issn:
0969-806X
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DOI:
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10.1016/j.radphyschem.2016.03.016
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi. org/10.1016/j.radphyschem.2016.03.016
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Thanks:
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We would like to thank the "Hospital Clinic Universitari de Valencia" for the given help. This work has received support via "Programa para la innovacion e incentivacion" from Universitat Politecnica de Valencia "INNOVA 2012".[+]
We would like to thank the "Hospital Clinic Universitari de Valencia" for the given help. This work has received support via "Programa para la innovacion e incentivacion" from Universitat Politecnica de Valencia "INNOVA 2012".
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Type:
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Artículo
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