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 and Kreuz, Michael and Beaucour, Jérôme and Köster, U. and 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.

Description

Title: Why neutron guides may end up breaking down? Some results on the macroscopic behaviour of alkali-borosilicate glass support plates under neutron irradiation
Author/s:
  • Boffy, Romain
  • Kreuz, Michael
  • Beaucour, Jérôme
  • Köster, U.
  • Bermejo, F. J.
Item Type: Article
Título de Revista/Publicación: Nuclear Instruments and Methods in Physics Research B
Date: September 2015
ISSN: 0168-583X
Volume: 358
Subjects:
Freetext Keywords: Neutron guide; Radiation damage; Glass; Neutron instruments
Faculty: E.T.S.I. Industriales (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

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.

More information

Item ID: 38310
DC Identifier: http://oa.upm.es/38310/
OAI Identifier: oai:oa.upm.es:38310
DOI: 10.1016/j.nimb.2015.06.017
Official URL: http://www.sciencedirect.com/science/article/pii/S0168583X15005546
Deposited by: Memoria Investigacion
Deposited on: 21 Jan 2016 16:11
Last Modified: 01 Oct 2017 22:30
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