24-28 November 2025
Africa/Johannesburg timezone
Please keep an eye on the timetable for up-to-date changes daily

Characterization of High-Energy Neutron Beamlines Using Silicon and Diamond Detectors

27 Nov 2025, 14:25
25m
Invited Talk Invited Talks Session 11

Speaker

Carlo Cazzaniga (Science and Technology Facilities Council)

Description

Silicon and diamond detectors have been extensively investigated as neutron spectrometers for characterizing high-energy neutron fields. Our work particularly focuses on the characterization of atmospheric-like neutron spectra generated by spallation sources, which are essential for single event effect (SEE) testing of microelectronics at neutron energies up to 800 MeV. Diamond detectors are also notably effective for measuring 14 MeV monoenergetic neutron beams due to the advantageous neutron-alpha reaction on carbon.
In this presentation, we demonstrate the use of pulsed neutron sources for conducting time-of-flight (ToF) measurements, enabling the detailed analysis of detector responses across varying neutron energies. The measurements that are presented are from an experimental campaign at the nTOF beamline of CERN. We will further discuss the application of these detectors in characterizing fast neutron beams and introduce our planned collaboration with iThemba LABS. This collaboration aims to evaluate unique quasi-monoenergetic neutron beams with energies up to 200 MeV, that are available at iThemba LABS, thus facilitating advanced testing capabilities in South Africa for electronics under high-energy neutron irradiation.

Primary author

Carlo Cazzaniga (Science and Technology Facilities Council)

Presentation Materials