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Update of the BIPM comparison BIPM.RI(II)-K1.Ho-166m of activity measurements of the radionuclide 166m Ho to include the 2017 results of the NMISA (South Africa) and update of the KCRV
Metrologia ( IF 2.4 ) Pub Date : 2020-04-30 , DOI: 10.1088/0026-1394/57/1a/06010
C Michotte 1 , S Courte 1 , M Nonis 1 , M W van Rooy 2 , M J van Staden 2 , J Lubbe 2
Affiliation  

Since 1989, 6 national metrology institutes (NMI) have submitted 7 samples of known activity of 166m Ho to the International Reference System (SIR) for activity comparison at the Bureau International des Poids et Mesures (BIPM), with comparison identifier BIPM.RI(II)-K1.Ho-166m. The values of the activity submitted were between about 70 kBq and 470 kBq. The key comparison reference value (KCRV) has been re-evaluated using the power-moderated weighted mean to include the PTB and NMISA results dated 2013 and 2017, respectively. There are now five valid results in the KCDB for the BIPM.RI(II)-K1.Ho-166m comparison and the degrees of equivalence between the equivalent activity measured in the SIR and the KCRV have been calculated. The degrees of equivalence for linked regional key comparisons (APMP and EURAMET) were updated. == Main text To reach the main text of this paper, click on [https://www.bipm.org/utils/common/pdf/final_reports/RI/BIPM.RI(II)/...]

中文翻译:

BIPM比较的更新BIPM.RI(II)-K1.Ho-166m放射性核素166m Ho的活度测量值,包括NMISA(南非)的2017年结果和KCRV的更新

自1989年以来,有6个国家计量机构(NMI)已向国际参考系统(SIR)提交了7个已知166m Ho活动的样本,供国际生物物理与生物安全局(BIPM)进行活动比较,比较标识符为BIPM.RI II)-K1.Ho-166m。提交的活动值介于70 kBq和470 kBq之间。关键比较参考值(KCRV)已使用幂调节的加权均值进行了重新评估,以分别包括2013年和2017年的PTB和NMISA结果。现在在KCDB中有5个对BIPM.RI(II)-K1.Ho-166m进行比较的有效结果,并且已经计算出SIR和KCRV中测得的等效活性之间的等效程度。链接的区域密钥比较(APMP和EURAMET)的等效程度已更新。
更新日期:2020-04-30
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