First results with the ANET Compact Thermal Neutron Collimator

O. Sans-Planell, M. Costa, E. Durisi, E. Mafucci, L. Menzio, V. Monti, L. Visca, F. Grazzi, R. Bedogni, S. Altieri

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


This paper presents the first determination of the spatial resolution of the ANET Compact Neutron Collimator, obtained with a measuring campaign at the LENA Mark-II TRIGA reactor in Pavia. This novel collimator consists of a sequence of collimating and absorbing channels organised in a chessboard-like geometry. It has a scalable structure both in length and in the field of view. It is characterized by an elevated collimation power within a limited length. Its scalability and compactness are added values with respect to traditional collimating system. The prototype tested in this article is composed of 4 concatenated stages, each 100 mm long, with a channel width of 2.5 mm, delivering a nominal L/D factor of 160. This measuring campaign illustrates the use of the ANET collimator and its potential application in neutron imaging for facilities with small or medium size neutron sources.

Original languageEnglish
Article numberP11025
JournalJournal of Instrumentation
Issue number11
Publication statusPublished - Nov 2021
Externally publishedYes


  • Instrumentation for neutron sources
  • Neutron radiography

ASJC Scopus subject areas

  • Mathematical Physics
  • Instrumentation


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