Why neutron guides may end up breaking down? Some results on the macroscopic behaviour of alkali-borosilicate glass support plates under neutron irradiation

Boffy, Romain; Kreuz, Michael; Beaucour, Jérôme; Köster, U. y Bermejo, F. J. (2015). Why neutron guides may end up breaking down? Some results on the macroscopic behaviour of alkali-borosilicate glass support plates under neutron irradiation. "Nuclear Instruments and Methods in Physics Research B", v. 358 ; pp. 179-187. ISSN 0168-583X. https://doi.org/10.1016/j.nimb.2015.06.017.

Descripción

Título: Why neutron guides may end up breaking down? Some results on the macroscopic behaviour of alkali-borosilicate glass support plates under neutron irradiation
Autor/es:
  • Boffy, Romain
  • Kreuz, Michael
  • Beaucour, Jérôme
  • Köster, U.
  • Bermejo, F. J.
Tipo de Documento: Artículo
Título de Revista/Publicación: Nuclear Instruments and Methods in Physics Research B
Fecha: Septiembre 2015
Volumen: 358
Materias:
Palabras Clave Informales: Neutron guide; Radiation damage; Glass; Neutron instruments
Escuela: E.T.S.I. Industriales (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

In this paper we report on a first part of a study on the mechanisms leading to brittle fracture in neutron guides made of glass as structural element. Such devices are widely used to deliver thermal and cold neu tron beams to experimental lines in most large neutron research facilities. We present results on macroscopic properties of samples of guide glass substrates which are subjected to neutron irradiation at relatively large fluences. The results show a striking dependence of some of the macroscopic properties such as density, shape or surface curvature upon the specific chemical composition of a given glass. The relevance of the present findings for the installation of either replacement guides at the existing facilities or for the deployment of instruments for ongoing projects such as the European Spallation Source is briefly discussed.

Más información

ID de Registro: 38310
Identificador DC: http://oa.upm.es/38310/
Identificador OAI: oai:oa.upm.es:38310
Identificador DOI: 10.1016/j.nimb.2015.06.017
URL Oficial: http://www.sciencedirect.com/science/article/pii/S0168583X15005546
Depositado por: Memoria Investigacion
Depositado el: 21 Ene 2016 16:11
Ultima Modificación: 01 Oct 2017 22:30
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