Blog
About

  • Record: found
  • Abstract: found
  • Article: found
Is Open Access

Neutron reflectometry on highly absorbing films and its application to 10B4C-based neutron detectors

Proceedings. Mathematical, Physical, and Engineering Sciences / The Royal Society

The Royal Society

neutron detection, neutron-induced fluorescence, neutron reflectometry, boron-10

Read this article at

Bookmark
      There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

      Abstract

      Neutron reflectometry is a powerful tool used for studies of surfaces and interfaces. The absorption in the typical studied materials is neglected and this technique is limited only to the reflectivity measurement. For strongly absorbing nuclei, the absorption can be directly measured by using the neutron-induced fluorescence technique which exploits the prompt particle emission of absorbing isotopes. This technique is emerging from soft matter and biology where highly absorbing nuclei, in very small quantities, are used as a label for buried layers. Nowadays, the importance of absorbing layers is rapidly increasing, partially because of their application in neutron detection; a field that has become more active also due to the 3 He-shortage. We extend the neutron-induced fluorescence technique to the study of layers of highly absorbing materials, in particular 10B4C. The theory of neutron reflectometry is a commonly studied topic; however, when a strong absorption is present the subtle relationship between the reflection and the absorption of neutrons is not widely known. The theory for a general stack of absorbing layers has been developed and compared to measurements. We also report on the requirements that a 10B4C layer must fulfil in order to be employed as a converter in neutron detection.

      Related collections

      Most cited references 29

      • Record: found
      • Abstract: not found
      • Article: not found

      Surface Studies of Solids by Total Reflection of X-Rays

       L. G. Parratt (1954)
        Bookmark
        • Record: found
        • Abstract: not found
        • Article: not found

        D17: the new reflectometer at the ILL

         R Cubitt,  G Fragneto (2002)
          Bookmark
          • Record: found
          • Abstract: not found
          • Article: not found
          Is Open Access

          Stability of 10B4C thin films under neutron radiation

            Bookmark

            Author and article information

            Journal
            10.1098/rspa.2015.0711
            4786047
            26997902

            http://creativecommons.org/licenses/by/4.0/

            Physics

            neutron detection, neutron-induced fluorescence, neutron reflectometry, boron-10

            Comments

            Comment on this article