Matches in SemOpenAlex for { <https://semopenalex.org/work/W2395423118> ?p ?o ?g. }
- W2395423118 abstract "An experiment to measure the free neutron lifetime using magnetically trapped neutrons is described. Neutrons are loaded into a 1.1 T deep superconducting Ioffe-type trap by scattering an 0.89 nm neutron beam in an isotopically pure superfluid He bath cooled to below 300 mK. The neutron decays are detected by the scintillation light produced in the helium by the neutron decay products. The 0.89 nm neutron beam is produced by diffracting a cold neutron beam from a potassium intercalated graphite monochromator. The measured trap lifetime at 300 mK and with no ameliorative magnetic ramping is substantially shorter than the free neutron lifetime. This is attributed to the presence of neutrons with an energy higher than the magnetic potential of the trap. Magnetic field ramping is implemented to eliminate these neutrons, resulting in an 833 −63 s trap lifetime, that is consistent with the currently accepted value of the free neutron lifetime. An increase in the thermal upscattering rate is observed in the temperature range 0.5 K ≤ T ≤ 0.85 K. A number of other systematic effects are studied." @default.
- W2395423118 created "2016-06-24" @default.
- W2395423118 creator A5000862932 @default.
- W2395423118 date "2004-01-01" @default.
- W2395423118 modified "2023-09-23" @default.
- W2395423118 title "Magnetic Trapping of Neutrons for Measurement of the Neutron Lifetime" @default.
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- W2395423118 hasPublicationYear "2004" @default.
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