International key comparison of thermal neutron fluence measurements—CCRI(III)-K8
International key comparison of thermal neutron fluence measurements—CCRI(III)-K8
复制标题
热中子注量测量国际重点对比——CCRI(III)-K8
DOI：
10.1088/0026-1394/52/1a/06011
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发表时间：
2015
期刊：
影响因子：
2.4
通讯作者：
D. Thomas
中科院分区：
文献类型：
--
作者：
R. Nolte;R. Böttger;J. Chen;H. Harano;D. Thomas
三十多年后，CCRI 第三部分组织了一次新的热中子注量测量的关键比较。通过在四名参与者（CIAE、PTB、NMIJ 和 NPL）之间轮流使用四种传输工具进行比较。中试实验室在两次测量之间反复验证了探测器的稳定性。四个传输装置中的每一个都具有不同的注量响应对中子能量的依赖性。因此，比较对于参与者测量所使用的设施的光谱分布的知识也很敏感。比较结果显示出在分析过程中无法解决的不一致迹象。因此采用结果的算术平均值来计算关键比较参考值。主要文字。要阅读本文的正文，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，最终报告已经过同行评审并由 CCRI 批准发布。
After more than thirty years a new key comparison of thermal neutron fluence measurements was organized by section III of CCRI. The comparison was carried out by rotating four transfer instruments among the four participants (CIAE, PTB, NMIJ and NPL). The stability of the detectors was repeatedly verified by the pilot laboratory between the measurements. Each of the four transfer devices had a different dependence of the fluence response on the neutron energy. Hence the comparison was also sensitive to the knowledge of the spectral distributions of the facilities used by the participants for their measurements. The results of the comparison showed signs of inconsistencies which could not be resolved during the analysis. Therefore the arithmetic mean of the results was used to calculate the key comparison reference value. Main text. 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).