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Hanno Perrey

assistant director of undergraduate education

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The neutron-tagging facility at Lund University

Author

  • 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. Kanaki
  • A. Khaplanov
  • G. Mauri
  • F. Piscitelli
  • I. Stefanescu
  • J. Scherzinger
  • R. Al Jebali
  • J. R. M. Annand
  • L. Boyd
  • M. Akkawi
  • W. Pei
Show all

Summary, in English

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.

Department/s

  • Nuclear physics

Publishing year

2020

Language

English

Pages

287-297

Publication/Series

IAEA-TECDOC Series

Issue

1935

Document type

Conference paper

Publisher

International Atomic Energy Agency

Topic

  • Subatomic Physics
  • Accelerator Physics and Instrumentation

Status

Published

ISBN/ISSN/Other

  • ISSN: 1011–4289
  • ISBN: 978–92–0–126620–0
  • ISBN: 978–92–0–126520–3