Dynamic response of an accelerator driven system to accelerator beam interruptions for criticality

Lafuente Mazuecos, Antonio; Abánades Velasco, Alberto; Sordo Balbín, Fernando; León López, Pablo Teófilo y Martínez-Val Peñalosa, Jose Maria (2008). Dynamic response of an accelerator driven system to accelerator beam interruptions for criticality. "Nuclear Instruments And Methods In Physics Research Section A", v. 591 (n. 2); pp. 327-337. ISSN 0168-9002.

Descripción

Título: Dynamic response of an accelerator driven system to accelerator beam interruptions for criticality
Autor/es:
  • Lafuente Mazuecos, Antonio
  • Abánades Velasco, Alberto
  • Sordo Balbín, Fernando
  • León López, Pablo Teófilo
  • Martínez-Val Peñalosa, Jose Maria
Tipo de Documento: Artículo
Título de Revista/Publicación: Nuclear Instruments And Methods In Physics Research Section A
Fecha: Junio 2008
Volumen: 591
Materias:
Palabras Clave Informales: Accelerators; subcritical systems; beam interruptions; reactivity
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Ingeniería Energética y Fluidomecánica [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Subcritical nuclear reactors driven by intense neutron sources can be very suitable tools for nuclear waste transmutation, particularly in the case of minor actinides with very low fractions of delayed neutrons. A proper control of these systems needs to know at every time the absolute value of the reactor subcriticality (negative reactivity), which must be measured by fully reliable methods, usually conveying a short interruption of the accelerator beam in order to assess the neutron flux reduction. Those interruptions should be very short in time, for not disturbing too much the thermal magnitudes of the reactor. Otherwise, the cladding and the fuel would suffer from thermal fatigue produced by those perturbations, and the mechanical integrity of the reactor would be jeopardized. It is shown in this paper that beam interruptions of the order of 400 ms repeated every second would not disturb significantly the reactor thermal features, while enabling for an adequate measurement of the negative reactivity.

Más información

ID de Registro: 3024
Identificador DC: http://oa.upm.es/3024/
Identificador OAI: oai:oa.upm.es:3024
Depositado por: Memoria Investigacion
Depositado el: 10 May 2010 11:52
Ultima Modificación: 20 Abr 2016 12:36
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