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Fecha
2024-06-25
Derechos de acceso
info:eu-repo/semantics/openAccess
Título de la revista
ISSN de la revista
Título del volumen
Editorial
Elsevier
Citas
Resumen
The radiation hazard is one of the major aspects of concern in the design of a facility where it exists a risk of
exposure to ionizing radiation. The nuclear analysis for radioprotection purposes requires an accurate description
of the radiation fields. This is especially true in accelerator-based facilities where several types of particles are
producing the radiation fields. Radiation fields exist during the accelerator operation, but delayed radiation may
also be significant for a long time after operation ends. The radiation fields of concern present during the
operation are due to the secondary neutrons and photons emitted by the interaction of accelerated particles with
the accelerator components (beam leakage) or with the target. The radiation present after the operation is the
residual photon field produced by activated materials, these materials being activated by both accelerated
particles and secondary neutrons. This residual radiation field is relevant in high intensity accelerators like
IFMIF-DONES.
In order to address these complex radiation transport simulations, the D1SUNED code has been updated and
the new code release renamed as MCUNED-Plus. The new developments include improvements in the light-ion
transport like the implementation of a variance reduction for the production of secondary particles, and a new
kinematics to reproduce the angular distribution of secondary particles emitted after deuteron breakup reaction.
The calculation of the residual photon field in accelerator facility has also been improved by allowing to evaluate
both light-ions and secondary neutrons induced shutdown dose rate in a single coupled simulation.
Descripción
The registered version of this article, first published in Fusion Engineering and Design, is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.fusengdes.2024.114565
La versión registrada de este artículo, publicado por primera vez en Fusion Engineering and Design, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.fusengdes.2024.114565
La versión registrada de este artículo, publicado por primera vez en Fusion Engineering and Design, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.fusengdes.2024.114565
Categorías UNESCO
Palabras clave
Monte Carlo simulations, D1S, Accelerators facilities, Shutdown dose rate, DONES
Citación
Victor López, Patrick Sauvan, Javier Sanz, Francisco Ogando, "New developments in the MCUNED-Plus code for radiation transport and coupled transport-activation computational simulations in accelerator-based facilities", Fusion Engineering and Design, num 205, 2024, pp 114565
Centro
E.T.S. de Ingenieros Industriales
Departamento
Ingeniería Energética