A study of the intrinsic background from the beryllium filter spectrometer on Taipan

Simple item page
dc.contributor.authorStampfl, APJen_AU
dc.date.accessioned2023-08-21T00:57:13Zen_AU
dc.date.available2023-08-21T00:57:13Zen_AU
dc.date.issued2021-11-25en_AU
dc.date.statistics2023-04-24en_AU
dc.description.abstractThe Beryllium filter spectrometer on Taipan is a low-energy band-pass spectrometer that employs a number of materials to effectively scatter out neutrons of higher energies and transmit only neutrons in the energy range, ef=1.2±0.5 meV. Here in this study the spectrometer response is studied in order to understand and identify the inherent background from the spectrometer itself. Ambient air and nickel are used as scatterers in this study as the former gives a reasonable detection limit of the spectrometer and the latter gives enough scatter to observe the inelastic signal but not too much to swamp out the inherent signal produced by the spectrometer itself. The background shape is found to be hull-like that reflects the total scattering cross-sections of the filter materials themselves and that of the copper cooling frame and the iron found in the stainless steel collimator. Furthermore the detailed inelastic signals from the last set of Beryllium blocks next to the detector bank are identifiable as low intensity parts of the spectra. A simple experimental method using the collected spectra are used to identify features associated with scatter from the spectrometer and those from the sample under investigation which can then be used to potentially effectively strip-out the spectrometer profile from collected spectra. Further work is discussed to minimise the scatter generated from the spectrometer filter blocks and frames in order to reduce the background to the ultimate minimum limit. © 2021 The Authoren_AU
dc.identifier.articlenumber90en_AU
dc.identifier.citationStampfl, A., (2021). A study of the intrinsic background from the beryllium filter spectrometer on Taipan. Presentation to the ANSTO User Meeting, 24-26 November 2021, Online. Retrieved from: https://events01.synchrotron.org.au/event/146/contributions/4315/contribution.pdfen_AU
dc.identifier.conferenceenddate2021-11-26en_AU
dc.identifier.conferencenameANSTO User Meeting 2021en_AU
dc.identifier.conferenceplaceOnlineen_AU
dc.identifier.conferencestartdate2021-11-24en_AU
dc.identifier.urihttps://events01.synchrotron.org.au/event/146/contributions/4315/contribution.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15096en_AU
dc.language.isoenen_AU
dc.publisherAustralian Nuclear Science and Technology Organisationen_AU
dc.subjectANSTOen_AU
dc.subjectMeasuring instrumentsen_AU
dc.subjectBerylliumen_AU
dc.subjectSpectrometersen_AU
dc.subjectNeutronsen_AU
dc.subjectEnergy rangeen_AU
dc.subjectAiren_AU
dc.subjectNickelen_AU
dc.subjectScatteringen_AU
dc.titleA study of the intrinsic background from the beryllium filter spectrometer on Taipanen_AU
dc.typeConference Presentationen_AU
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
contribution-39.pdf
Size:
360.84 KB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Conference Publications