Conceptual study of salt-meter with 252Cf neutron source for on-site inspection of bridge structure

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-06-09 DOI:10.3233/JNR-210015

Y. Wakabayashi, M. Yan, M. Takamura, Ryuutarou Ooishi, Hiroshi Watase, Y. Ikeda, Y. Otake

引用次数: 1

Abstract

We studied the feasibility of a portable salt-meter incorporating a prompt gamma neutron activation analysis with a californium-252 neutron source to meet urgent demands for non-destructive methods without pre-processing in large bulk materials such as concrete structures. This technique is aiming at the chloride ion concentration in concrete structures with a depth profile from the surface to steel bar. From the portability point of view, a californium-252 neutron source is adopted and we have performed a preliminary experiment and simulations with a simple geometry. In this paper, we describe the performances of salt detection sensitivities by applying the prompt gamma neutron activation analysis.

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252Cf中子源盐计用于桥梁结构现场检测的概念研究

我们研究了便携式盐计的可行性，该盐计结合了快速伽马中子活化分析和加州-252中子源，以满足对混凝土结构等大体积材料无需预处理的无损检测方法的迫切需求。该技术针对混凝土结构中氯离子的浓度，混凝土结构具有从表面到钢筋的深度分布。从便携性的角度来看，我们采用了一个California-252中子源，并用一个简单的几何结构进行了初步实验和模拟。在本文中，我们通过应用瞬发伽马中子活化分析来描述盐探测灵敏度的性能。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.