Low-energy neutron cross-talk between organic scintillator detectors
Year: 2025
Type: article
Abstract: 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.
Institutions: Centre National de la Recherche Scientifique, École Nationale Supérieure d'Ingénieurs de Caen, Laboratoire de Physique Corpusculaire de Caen, Institut National de Physique Nucléaire et de Physique des Particules, Université de Caen Normandie, Université Paris-Saclay, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie, Commissariat à l'Énergie Atomique et aux Énergies Alternatives, CEA DAM Île-de-France, Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
Language: English
Subfield: Radiation
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,620
OpenAlex ID: W4408150758