Bonn 2025 – wissenschaftliches Programm
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AGA: Arbeitsgruppe Physik und Abrüstung
AGA 6: Verification II – Detection and Nuclear Disaramament Verification
AGA 6.1: Hauptvortrag
Donnerstag, 13. März 2025, 17:15–18:15, HS HISKP
Neutron multiplicity measurement for nuclear disarmament verification — •Olaf Schumann1, Martin Baron2, Risse Monika1, and Theo Köble1 — 1Fraunhofer INT, Euskirchen — 2Bundesamt für Strahlenschutz, Berlin
International Partnership for Nuclear Disarmament Verification (IPNDV) aims to explore technologies and procedures to verify the reduction of nuclear weapon arsenals in the future. Within the IPNDV framework, an international measurement campaign was conducted in 2023 at the SCK CEN research center in Mol, Belgium. The goal was to validate or refute if an unknown assembly matches a previously measured template. During the three-week campaign, different techniques were employed by multiple teams. We present our neutron multiplicity measurements, that were taken with two different devices, an Ortec Fission Meter and a Canberra JCC 71 Slab Counter with a list mode electronic. We conclude that neutron measurements are a valuable tool for template validation, but have to be complemented with additional techniques, for example with gamma spectrometry.
Keywords: nuclear weapons; disarmament; multiplicity counting