Experimental setup and procedure for the measurement of the Be-7(n,p)Li-7 reaction at n_TOF

n-TOF Collaboration

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Following the completion of the second neutron beam line and the related experimental area (EAR2) at the n_TOF spallation neutron source at CERN, several experiments were planned and performed. The high instantaneous neutron flux available in EAR2 allows to investigate neutron induced reactions with charged particles in the exit channel even employing targets made out of small amounts of short-lived radioactive isotopes. After the successful measurement of the Be-7(n,alpha)alpha cross section, the Be-7(n,p)Li-7 reaction was studied in order to provide still missing cross section data of relevance for Big Bang Nucleosynthesis (BBN), in an attempt to find a solution to the cosmological Lithium abundance problem. This paper describes the experimental setup employed in such a measurement and its characterization. (C) 2017 The Author(s). Published by Elsevier B.V.

Original languageEnglish
Pages (from-to)27-33
Number of pages7
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Early online date12 Dec 2017
Publication statusPublished - 11 Apr 2018


  • Cosmological Lithium problem
  • Big bang nucleosynthesis
  • Be-7(n,p)Li-7 reaction
  • n_TOF spallation neutron source


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