Absolute standardisation and determination of the half-life and gamma emission intensities of 89Zr

Andrew J Fenwick; Sean M Collins; William D Evans; Kelley M Ferreira; Stephen J Paisey; Andrew P Robinson; Christopher Marshall

doi:10.1016/j.apradiso.2020.109294

Absolute standardisation and determination of the half-life and gamma emission intensities of ⁸⁹Zr

Appl Radiat Isot. 2020 Dec:166:109294. doi: 10.1016/j.apradiso.2020.109294. Epub 2020 Jul 13.

Authors

Andrew J Fenwick¹, Sean M Collins², William D Evans³, Kelley M Ferreira⁴, Stephen J Paisey³, Andrew P Robinson⁵, Christopher Marshall³

Affiliations

¹ National Physical Laboratory, Hampton Road, Teddington, UK; Cardiff University, Cardiff, UK. Electronic address: andrew.fenwick@npl.co.uk.
² National Physical Laboratory, Hampton Road, Teddington, UK; The University of Surrey, Guildford, UK.
³ Cardiff University, Cardiff, UK; Wales Research and Diagnostic Positron Emission Tomography Imaging Centre, School of Medicine, Cardiff University, Cardiff, UK.
⁴ National Physical Laboratory, Hampton Road, Teddington, UK.
⁵ National Physical Laboratory, Hampton Road, Teddington, UK; The University of Manchester, Manchester, UK; The Christie NHS Foundation Trust, Manchester, UK.

PMID: 32977243
DOI: 10.1016/j.apradiso.2020.109294

Abstract

An absolute standardisation of ⁸⁹Zr was performed alongside determination of gamma emission intensities and half-life. The collected data were evaluated alongside complementary works from previous publications and new recommended nuclear data values are presented including a new evaluated T_1/2 = 78.361(25) h and new absolute intensities for gamma transitions resulting from its decay to ⁸⁹Y. Dial settings for commercially available radionuclide calibrators are also presented and show a relative difference of approximately 3% compared to previously published values.