The neutron-tagging facility at Lund University

F. Messi, H. Perrey, K. Fissum, D. D. DiJulio, E. Karnickis, V. Maulerova, N. Mauritzson, E. Rofors, A. Huusko, T. Ilves, A. Jalgén, S. Koufigar, H. Söderhielm, D. Söderström, R. Hall-Wilton, P. M. Bentley, C. Cooper-Jensen, J. Freita Ramos, F. Issa, K. KanakiA. Khaplanov, G. Mauri, F. Piscitelli, I. Stefanescu, J. Scherzinger, R. Al Jebali, J. R. M. Annand, L. Boyd, M. Akkawi, W. Pei

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding

Abstract

Over the last decades, the field of thermal neutron detection has overwhelmingly employed He-3-based technologies. The He-3 crisis together with the forthcoming establishment of the European Spallation Source have necessitated the development of new technologies for neutron detection. Today, several promising He-3-free candidates are under detailed study and need to be validated. This validation process is in general long and expensive. The study of detector prototypes using neutron-emitting radioactive sources is a cost-effective solution, especially for preliminary investigations. That said, neutron-emitting sources have the general disadvantage of broad, structured, emitted-neutron energy ranges. Further, the emitted neutrons often compete with unwanted backgrounds of gamma-rays, alpha-particles, and fission-fragments. By blending experimental infrastructure such as shielding to provide particle beams with neutron-detection techniques such as tagging, disadvantages may be converted into advantages. In particular, a technique known as tagging involves exploiting the mixed-field generally associated with a neutron-emitting source to determine neutron time-of-flight and thus energy on an event-by-event basis. This allows for the definition of low-cost, precision neutron beams. The Source-Testing Facility, located at Lund University in Sweden and operated by the SONNIG Group of the Division of Nuclear Physics, was developed for just such low-cost studies. Precision tagged-neutron beams derived from radioactive sources are available around-the-clock for advanced detector diagnostic studies. Neutron measurements performed at the Source Testing Facility are thus cost-effective and have a very low barrier for entry. In this paper, we present an overview of the project.
Original languageEnglish
Title of host publicationModern Neutron Detection
Subtitle of host publicationProceedings of a Technical Meeting
Place of PublicationVienna
PublisherInternational Atomic Energy Agency
Pages287-297
Number of pages11
ISBN (Electronic)978–92–0–126620–0
ISBN (Print)978–92–0–126520–3
Publication statusPublished - 2020

Publication series

NameIAEA-TECDOC Series
PublisherInternational Atomic Energy Agency
Number1935
ISSN (Print)1011–4289

Subject classification (UKÄ)

  • Subatomic Physics
  • Accelerator Physics and Instrumentation

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