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T: Fachverband Teilchenphysik

T 95: Gaseous Detectors III

T 95.5: Talk

Friday, March 20, 2026, 10:00–10:15, KH 01.014

BASTARD: A GEM based neutron detector with VMM readout — •Jan Glowacz¹, Thomas Block¹, Klaus Desch¹, Saime Gürbuz¹, Jochen Kaminski¹, and Markus Köhli^2,3 — ¹University of Bonn — ²Heidelberg University — ³StyX Neutronica GmbH

In the neutron science community the high price of helium-3 pushes the use of solid neutron converters like boron or gadolinium in detectors. The boron based multi stage tracking detector (BASTARD) is such a detector with focus on high spatial resolution and high readout rates. It is a multi-layer gaseous detector, where a boron coated cathode is used to convert neutrons into helium and lithium ions. A GEM-like gas amplification stage is used to detect the ions. The readout is implemented using VMM3a hybrids and the DRD1 Scalable Readout System. A prototype detector with an active area of 10cm x 10cm is currently under development. We present our first results form tests with the prototype.

Keywords: Neutron Scattering; VMM; SRS