A new key comparison of the standards for absorbed dose to water of the Bundesamt fr Eich- und Vermessungswesen (BEV), Austria and the Bureau International des Poids et Mesures (BIPM) was carried out in the ⁶⁰Co radiation beam of the BIPM in July 2020. The comparison result, based on the calibration coefficients for two transfer standards and evaluated as a ratio of the BEV and the BIPM standards for absorbed dose to water, is 0.9997 with a combined standard uncertainty of 4.1 parts in 10³. The result agrees within the uncertainties with the comparison carried out in 2009. The results are analysed and presented in terms of degrees of equivalence, suitable for entry in the BIPM key comparison database.

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.

The final report has been peer-reviewed and approved for publication by the CCRI, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).

7 月，在 BIPM的⁶⁰ Co 辐射束中，对奥地利联邦议会 (BEV) 和国际测量与测量局 (BIPM) 的水吸收剂量标准进行了新的关键比较2020. 基于两个转移标准的校准系数并评估为吸收剂量与水的 BEV 和 BIPM 标准的比率，比较结果为 0.9997，组合标准不确定度为 10 ³分之 4.1 。结果在不确定性范围内与 2009 年进行的比较一致。结果以等价度的形式进行分析和呈现，适合输入 BIPM 关键比较数据库。

要访问本文的正文，请单击最终报告。请注意，此文本出现在 BIPM 密钥比较数据库 kcdb.bipm.org/ 的附录 B 中。

根据 CIPM 互认安排 (CIPM MRA) 的规定，最终报告已通过同行评审并由 CCRI 批准发布。