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Updated: Mar 18, 2026

Quantification of Hydrogen Concentrations in Surface and Interface Layers and Bulk Materials through Depth Profiling with Nuclear Reaction Analysis

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时间分辨率中子成像用于地下石质中的吸收.

Prakash Purswani¹, Bijay K C^1,2, James Torres²

¹Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87544, United States.

Environmental science & technology letters

|March 16, 2026

概括

此摘要是机器生成的。

中子成像可视化了岩石中的实时气迁移,显示它透到砂岩和石灰岩中,但避免了页岩,除了断裂. 这种技术有助于地下储存的研究.

关键词:

地质学水素地质学水素计算机断层扫描 (CT) 是一种计算机断层扫描.中子传输放射学放射学中子传输放射学在地下储存气的过程中,

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Last Updated: Mar 18, 2026

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科学领域:

地质物理学地质物理学
地下储能储能地下储能储能
材料科学材料科学材料科学

背景情况:

地质的生产和储存对于清洁能源至关重要,但的高扩散性会带来泄漏风险.
评估地下材料中的运输对于安全有效的储存至关重要.
现有的方法,如X射线微计算机断层扫描 (μCT),通常需要对比剂或替代气体.

研究的目的:

为了证明使用中子传导放射学/CT实时实地观察迁移.
为了研究在常见的水库和石头岩石石结构中的气运输行为.
建立中子成像作为地下气研究的可行工具.

主要方法:

实时中子放射学和计算机断层扫描 (CT) 用于图像化迁移.
印第安纳州石灰岩,阿姆赫斯特灰色砂岩和图米页岩的圆柱形核心样本经历了恒压气充电.
用图像减法技术进行了对砂岩中分布的定量分析.

主要成果:

气迅速透,并在砂岩和石灰岩的孔隙结构中均分布.
气在很大程度上被排除在细粒度页岩基质之外,仅在局部断裂区域检测到存在.
即使在低压,单相条件下,也可以实现的明显中子成像特征.

结论:

中子成像提供了一种强大的,非侵入性的方法,用于可视化在不同地下岩石结构中的位置迁移.
这些发现突出了水库岩石与岩石之间的气运输行为差异.
这项研究验证了中子成像作为一种有前途的技术,可以促进对地下的行为和储存的理解.