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RESEARCH PRODUCT

Transmission of very slow neutrons through material foils and its influence on the design of ultracold neutron sources

B. BlauMalgorzata KasprzakC. PlonkaGeza ZsigmondX. WangKlaus KirchJ. UlrichP. FierlingerP. FierlingerP. FierlingerM. LocherS. OchseA. PichlmaierM. MeierH. LeberB. KuczewskiO. ZimmerR. ReiserNorbert WiehlS. KöchliF. AtchisonM. DaumM. DaumM. DaumA. BollhalderP. GeltenbortG. Hampel

subject

PhysicsNuclear and High Energy PhysicsZirconiumZirconium alloychemistry.chemical_elementNuclear physicsTransmission (telecommunications)chemistryDeuteriumAluminiumUltracold neutronsNeutron sourceNeutronInstrumentation

description

At the Paul Scherrer Institute (PSI), a very intense source of ultracold neutrons (UCN) is being built. The UCN converter of solid deuterium must be contained in a vessel. Produced UCN leave that vessel through its top lid. To decide on the design of the vessel and the top lid, we have measured the transmission of neutrons with velocities between 3 and 20 m/s through different material foils. Contrary to expectations, we found that transmission through aluminium and aluminium alloys is equal or even higher compared to zirconium and reactor-grade zirconium alloys, respectively.

yearjournalcountryeditionlanguage
2009-09-01Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
https://doi.org/10.1016/j.nima.2009.06.047