Multi-Blade Detector with VMM3a-ASIC-based Readout: Installation and Commissioning at the Reflectometer Amor at PSI

The Multi-Blade (MB) Boron-10-based neutron detector is the chosen technologyfor three instruments at the European Spallation Source (ESS): the two ESSreflectometers, ESTIA and FREIA, and the Test Beam Line. A fourth MB detectorhas been built, installed and commissioned for the user operation of thereflectometer Amor at PSI (Switzerland). Amor can be considered a downscaledversion of the ESS reflectometer ESTIA. They are based on the same Selene guideconcept, optimized for performing focusing reflectometry on small samples. Theexperience gained at Amor is invaluable for the future deployment of the MBdetector at the ESS. This manuscript describes the MB detector construction andinstallation at Amor along with the readout electronics chain based on theVMM3a ASIC. The readout chain deployed at Amor is equivalent of that of theESS, including the readout master module (RMM), event-formation-units (EFUs),Kafka, FileWriter and live visualisation tools.