Non-destructive analysis of samples with a complex geometry by NRTA,Journal of Analytical Atomic Spectrometry

当前位置： X-MOL 学术 › J. Anal. At. Spectrom. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Non-destructive analysis of samples with a complex geometry by NRTA
Journal of Analytical Atomic Spectrometry ( IF 3.1 ) Pub Date : 2019/12/03 , DOI: 10.1039/c9ja00342h
Fei Ma _{1,

2,

3,

4} , Stefan Kopecky _{5,

6,

7,

8} , Gery Alaerts _{5,

6,

7,

8} , Hideo Harada _{1,

2,

3,

4} , Jan Heyse _{5,

6,

7,

8} , Fumito Kitatani _{1,

2,

3,

4} , Gilles. Noguere _{9,

10,

11,

12,

13} , Carlos Paradela _{5,

6,

7,

8} , Lino Šalamon _{5,

6,

7,

8,

9} , Peter Schillebeeckx _{5,

6,

7,

8} , Harufumi Tsuchiya _{1,

2,

3,

4} , Ruud Wynants _{5,

6,

7,

8}

Affiliation

The use of neutron resonance transmission analysis to characterise samples with a complex geometry is discussed. Analytical expressions for such samples have been derived and implemented in the resonance shape analysis code REFIT. They were validated by experiments at the time-of-flight facility GELINA using a set of metallic natural copper samples and pellets made of silver mixed with uranium-oxide powder. The expressions were used to derive sample characteristics by a least squares adjustment to experimental transmission data. In addition, the resonance parameters of ⁶³Cu and ⁶⁵Cu for energies below 6.5 keV, which are reported in the literature and recommended in evaluated data libraries, were verified.

中文翻译：

NRTA对具有复杂几何形状的样品进行无损分析

讨论了使用中子共振透射分析来表征具有复杂几何形状的样品。已经在共振形状分析代码REFIT中推导并实现了此类样品的分析表达式。通过飞行时设施GELINA的实验，使用一组金属天然铜样品和由银制成的颗粒与氧化铀粉末混合而成的颗粒，对它们进行了验证。通过对实验透射数据的最小二乘平差，使用这些表达式来得出样品特征。此外，验证了文献报道并在评估数据库中推荐的能量低于6.5 keV的⁶³ Cu和⁶⁵ Cu的共振参数。

更新日期：2020-03-12

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11