Erlangen 2026 – wissenschaftliches Programm
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AGA: Arbeitsgruppe Physik und Abrüstung
AGA 7: An Overview of Physics and Disarmament Research in Germany – Social Event & Poster Session
AGA 7.10: Poster
Donnerstag, 19. März 2026, 17:30–18:30, KH 00.016
Development of a novel antineutrino monitor prototype for nuclear safeguards — •Adhitya Sekhar1, Nick Thamm2, Sarah Friedrich1, Robin Mentel1, Stefan Roth2, and Yan-Jie Schnellbach1 — 1Technische Universität Darmstadt — 2RWTH Aachen University
In recent years there has been growing interest in antineutrino-based nuclear safeguards for monitoring reactor operation and spent fuel containment through the low-MeV antineutrinos emitted in beta-decay of fission fragments. Following previous promising simulations, a prototype for a novel antineutrino detection concept utilising a liquid organic time projection chamber (LOr-TPC) is now being developed. This study presents the initial phase of this project, showcasing investigations into the amplification properties of gaseous tetramethylsilane (TMS). A first test was conducted using a single-wire proportional counter in a ∼ 5mL cylindrical chamber and a 55Fe source. A second test is being planned using a Thick Gaseous Electron Multiplier (THGEM). The results of these tests will be shown, along with comparisons made to previous measurements of amplification in other standard gases using the same setup, and their implications on the antineutrino monitor prototype development pipeline.
Keywords: Antineutrino monitoring; Nuclear safeguards; Gaseous detectors; Novel technologies