首页> 外文期刊>Review of Scientific Instruments >X-ray imaging of subsurface dynamics in high-Z materials at the Diamond Light Source
【24h】

X-ray imaging of subsurface dynamics in high-Z materials at the Diamond Light Source

机译:金刚石光源下高Z材料中地下动力学的X射线成像

获取原文
获取原文并翻译 | 示例
           

摘要

In this paper, we describe a new approach enabling study of subsurface dynamics in high-Z materials using the unique combination of high-energy synchrotron X-rays, a hybrid bunch structure, and a new dynamic loading platform. We detail the design and operation of the purpose-built, portable small bore gas-gun, which was installed on the I12 high-energy beamline at the Diamond Light Source and used to drive compression waves into solid and porous metal targets. Using a hybrid bunch structure and broadband X-ray pulses of up to 300 keV, radiographic snapshots were captured during various dynamic deformation processes in cm-scale specimens, thereby contributing to a more complete understanding of the evolution of mesoscale damage. Importantly, we highlight strategies for overcoming the challenges associated with using high-energy X-rays, and suggest areas for improvement needed to advance dynamic imaging through large-scale samples of relevance to engineering scenarios. These preliminary measurements demonstrate the feasibility of probing highly transient phenomena using the presented methodology.
机译:在本文中,我们描述了一种新方法,该方法可以使用高能同步加速器X射线,混合束结构和新的动态加载平台的独特组合来研究高Z材料中的地下动力学。我们详细介绍了专用的便携式小口径气枪的设计和操作,该气枪安装在钻石光源的I12高能光束线上,用于将压缩波驱动到固体和多孔金属靶中。使用混合束结构和高达300 keV的宽带X射线脉冲,可以在厘米级标本中的各种动态变形过程中捕获射线照像快照,从而有助于更全面地了解中尺度损伤的演变。重要的是,我们重点介绍了克服与使用高能X射线相关的挑战的策略,并提出了通过与工程场景相关的大规模样本来推进动态成像所需的改进领域。这些初步的测量证明了使用提出的方法探测高瞬态现象的可行性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号