Tootfinder

❓ Jetzt geht das wieder los. Ständig irgendwelche Todesanzeigen zu #Weihnachten. Sterben Menschen gehäuft am Jahresende, oder ist das ein mir verborgenes Medien-Ding?
Anatoliy Bondarchuk, John Robertson, Pat Finn, Chris Rea, Peter Greene, Anthony Geary, Uwe Kockisch, Peter Arnett, Rosa von Praunheim, Rolf Becker

Development and extension of a monochromatic neutron beamline for neutron polarimetry device characterization at the Spallation Neutron Source
Kavish Imam, Vince Cianciolo, Brad Filippone, Nadia Fomin, Geoffrey Greene, Chenyang Jiang, Jordan O'Kronley, Seppo Penttila, Josh Pierce, John Ramsey, Isaiah Wallace
https://arxiv.org/abs/2602.00167 https://arxiv.org/pdf/2602.00167 https://arxiv.org/html/2602.00167
arXiv:2602.00167v1 Announce Type: new
Abstract: The precise manipulation and analysis of neutron spin states are foundational for a wide range of physics experiments, from fundamental symmetry tests to materials science. To enable systematic characterization of neutron polarimetry devices, we have constructed and extended a monochromatic neutron beamline at the Spallation Neutron Source, Oak Ridge National Laboratory. The beamline delivers monochromatic neutrons and provides a flexible platform for deploying and evaluating advanced neutron spin manipulation instruments. We describe the design and commissioning of the extended beamline and present a proof-of-concept neutron polarimetry study using three devices: a supermirror neutron polarizer, a Mezei spin flipper, and an in situ neutron 3He spin analyzer system. Performance metrics, optimization strategies, and systematic effects are discussed, demonstrating the beamline utility for neutron instrumentation testing. These results establish the extended monochromatic beamline as a useful resource for the development and validation of neutron polarimetry technologies.
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