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van Wyngaardt WM, Tobin SM, Lee S, Smith ML, Jackson TW, Ilter J, Howe B, Sarbutt A. Primary standardisation of technetium-99m by liquid scintillation coincidence counting. Appl Radiat Isot 2020; 156:108935. [PMID: 31675614 DOI: 10.1016/j.apradiso.2019.108935] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 09/26/2019] [Accepted: 10/09/2019] [Indexed: 11/18/2022]
Abstract
Technetium-99m was standardised by the 4π(LS)ce-γ coincidence extrapolation method. Sensitivity of the 4π(LS) channel to two types of radiation, namely conversion electrons and γ-rays, resulted in incorrect activity values being obtained when this was not adequately accounted for. Measurements were more robust when the LS detection efficiency was optimised, and when a γ-window setting was used that monitored the combined LS efficiency for conversion electrons and γ-rays. The primary standard was internationally compared through participation in the BIPM.RI(II)-K4.Tc99m key comparison.
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Affiliation(s)
- W M van Wyngaardt
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia.
| | - S M Tobin
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
| | - S Lee
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
| | - M L Smith
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
| | - T W Jackson
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
| | - J Ilter
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
| | - B Howe
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
| | - A Sarbutt
- Australian Nuclear Science and Technology Organisation, New Illawarra Rd, Lucas Heights, 2234, NSW, Australia
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Rafiei R, Boardman D, Reinhard MI, Sarbutt A, Kim K, Watt GC, Uxa S, Prokopovich DA, Belas E, Bolotnikov AE, James RB. Charge transport properties of CdMnTe radiation detectors. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123502005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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