Low-energy neutron cross-talk between organic scintillator detectors
A series of measurements have been performed with low-energy monoenergetic neutrons to characterise cross-talk between two organic scintillator detectors. Cross-talk time-of-flight spectra and probabilities were determined for neutron energies from 1.4 to 15.5 MeV and effective scattering angles ranging from ∼ 50 ° to ∼ 100 °. Monte-Carlo simulations incorporating both the active and inactive materials making up the detectors showed reasonable agreement with the measurements. Whilst the time-of-flight spectra were very well reproduced, the cross-talk probabilities were only in approximate agreement with the measurements, with the most significant discrepancies ( ∼ 40 %) occurring at the lowest energies. The neutron interaction processes producing cross-talk at the energies explored here are discussed in the light of these results.
Authors
- Jean-Marc Fontbonne
- X. Ledoux (ORCID: https://orcid.org/0000-0002-6134-2499)
- J. Gibelin (ORCID: https://orcid.org/0000-0001-6751-3714)
- N. de Séréville (ORCID: https://orcid.org/0000-0002-6150-2085)
- Cathy Fontbonne
- F. M. Marqués
- L. Achouri (ORCID: https://orcid.org/0000-0003-4411-6796)
- M. Pârlog
- T. Martínez (ORCID: https://orcid.org/0000-0002-0683-5506)
- F. Delaunay (ORCID: https://orcid.org/0000-0002-1703-2434)
- J. Hommet
- D. Étasse
- B. Carniol
- M. Sénoville
- N. A. Orr
- B. Laurent (ORCID: https://orcid.org/0000-0002-9255-8145)
Institutions
- Centre National de la Recherche Scientifique (FR)
- École Nationale Supérieure d'Ingénieurs de Caen (FR)
- Commissariat à l'Énergie Atomique et aux Énergies Alternatives (FR)
- Université Paris-Saclay (FR)
- CEA DAM Île-de-France (FR)
- Laboratoire de Physique Corpusculaire de Caen (FR)
- Unidades Centrales Científico-Técnicas (ES)
- Institut National de Physique Nucléaire et de Physique des Particules (FR)
- Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (FR)
- Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (ES)
- Université de Caen Normandie (FR)
Publication Details
- Journal
- Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment
- Published
- 2025-03-04
- DOI
- https://doi.org/10.1016/j.nima.2025.170370
- Primary Topic
- Radiation Detection and Scintillator Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00