Polarised 3He based neutron polarisers and analysers for magnetism research on ANSTO instruments

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dc.contributor.authorLee, WTen_AU
dc.contributor.authorKlose, Fen_AU
dc.contributor.authorJullien, Den_AU
dc.contributor.authorAndersen, KHen_AU
dc.date.accessioned2022-04-07T01:08:28Zen_AU
dc.date.available2022-04-07T01:08:28Zen_AU
dc.date.issued2012-02-02en_AU
dc.date.statistics2021-09-10en_AU
dc.description.abstractPolarised 3He based neutron polariser and polarization analyser [1] have become a matured technology for polarised neutron experimental works. A joint project of the Australian Nuclear Science and Technology Organisation (ANSTO) and the Institute Laue Langevin (ILL) is underway to provide 6 OPAL neutron scattering instruments with these important research capabilities. The instruments include SANS Quokka, diffractometer Wombat, thermal triple-axis spectrometer Taipan, reflectometer Platypus, Taipan’s cold-neutron counterpart Sika, and cold neutron time-of-flight spectrometer Pelican. Discussions are underway to further expand the use to more instruments, including the Laue diffractometer Koala and new instruments that are being designed and constructed. The project will produce a 3He gas polarizing station that uses the Metastable Exchange Optical Pumping method [2]. Silicon-window polarised 3He cells will polarize the incident neutron beam on several instruments and analyse the scattered neutrons on Platypus and Quokka. Wide-angle analyser “Pastis” cells [3] will be used for Wombat and Pelican. The polarizers and analysers are housed in magnetio-static cavities “Magic Box” and “Pastis” uniform field coils. The polarizing station has passed major performance requirements. The equipment for use on instruments are being built and tested for 3He polarisation lifetime, and infrastructural changes are being incorporated on ANSTO instruments. This presentation will provide examples illustrating the use of polarised neutrons to study magnetic materials and explain the methodology for using this technique. The latest status of the polarizing station and test results of the instrument components will be presented.en_AU
dc.identifier.citationLee, W. T., Klose, F., Jullien, D., & Andersen, K. (2012). Polarised 3He based neutron polarisers and analysers for magnetism research on ANSTO instruments. Poster presented to the 36th Annual Condensed Matter and Materials Meeting, Wagga 2012, Charles Sturt University, Wagga Wagga, NSW, 31st January – 3rd February, 2012. Retrieved from: https://physics.org.au/wp-content/uploads/cmm/2012/en_AU
dc.identifier.conferenceenddate3 February 2012en_AU
dc.identifier.conferencename36th Annual Condensed Matter and Materials Meetingen_AU
dc.identifier.conferenceplaceWagga Wagga, NSWen_AU
dc.identifier.conferencestartdate1 January 2012en_AU
dc.identifier.isbn978-0-646-57071-6en_AU
dc.identifier.othertp9en_AU
dc.identifier.urihttps://physics.org.au/wp-content/uploads/cmm/2012/en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12953en_AU
dc.language.isoenen_AU
dc.publisherAustralian Institute of Physicsen_AU
dc.subjectPolarizationen_AU
dc.subjectMagnetismen_AU
dc.subjectResearch programsen_AU
dc.subjectANSTOen_AU
dc.subjectAustraliaen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectScatteringen_AU
dc.titlePolarised 3He based neutron polarisers and analysers for magnetism research on ANSTO instrumentsen_AU
dc.typeConference Posteren_AU
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