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A high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment

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dc.contributor.authorHolley, A. T.en
dc.contributor.authorBroussard, L. J.en
dc.contributor.authorDavis, J. L.en
dc.contributor.authorHickerson, K.en
dc.contributor.authorIto, T. M.en
dc.contributor.authorLiu, C. Y.en
dc.contributor.authorLyles, J. T. M.en
dc.contributor.authorMakela, M.en
dc.contributor.authorMammei, R. R.en
dc.contributor.authorMendenhall, M. P.en
dc.contributor.authorMorris, C. L.en
dc.contributor.authorMortensen, R.en
dc.contributor.authorPattie, R. W.en
dc.contributor.authorRios, R.en
dc.contributor.authorSaunders, A.en
dc.contributor.authorYoung, A. R.en
dc.contributor.departmentPhysicsen
dc.date.accessed2014-01-25en
dc.date.accessioned2014-01-23T13:49:09Zen
dc.date.available2014-01-23T13:49:09Zen
dc.date.issued2012-07en
dc.description.abstractThe UCNA collaboration is making a precision measurement of the beta asymmetry (A) in free neutron decay using polarized ultracold neutrons (UCN). A critical component of this experiment is an adiabatic fast passage neutron spin flipper capable of efficient operation in ambient magnetic fields on the order of 1 T. The requirement that it operate in a high field necessitated the construction of a free neutron spin flipper based, for the first time, on a birdcage resonator. The design, construction, and initial testing of this spin flipper prior to its use in the first measurement of A with UCN during the 2007 run cycle of the Los Alamos Neutron Science Center's 800 MeV proton accelerator is detailed. These studies determined the flipping efficiency of the device, averaged over the UCN spectrum present at the location of the spin flipper, to be (epsilon) over bar = 0.9985(4). (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4732822]en
dc.description.sponsorshipNational Science Foundation NSF-0700491, NSF-0100689, NSF-0354970, NSF-0653222en
dc.identifier.citationHolley, A. T.; Broussard, L. J.; Davis, J. L.; et al., "A high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment," Rev. Sci. Instrum. 83, 073505 (2012); http://dx.doi.org/10.1063/1.4732822en
dc.identifier.doihttps://doi.org/10.1063/1.4732822en
dc.identifier.issn0034-6748en
dc.identifier.urihttp://hdl.handle.net/10919/25128en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/rsi/83/7/10.1063/1.4732822en
dc.language.isoen_USen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectbird-cage resonatoren
dc.subjectcold neutronsen
dc.subjecttransmissionen
dc.subjectefficienten
dc.subjectdesignsen
dc.subjectcoilen
dc.subjectnmren
dc.titleA high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experimenten
dc.title.serialReview of Scientific Instrumentsen
dc.typeArticle - Refereeden

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