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    科学领域:

    • 材料科学 材料科学 材料科学
    • 物理 物理学 物理
    • 图像技术技术的成像技术

    背景情况:

    • 传统的旋转断层扫描可以引入文物,并由于样本旋转而限制成像速度.
    • 射线多投影成像 (XMPI) 为动态3D成像提供了一个无旋转的替代方案.
    • 在没有离心力的情况下,可以更好地保持脆弱的样本动态.

    研究的目的:

    • 为了证明XMPI在光学不透明材料中观察快速3D动态的能力.
    • 在高率下评估XMPI仪器的性能.
    • 评估XMPI对未来X射线成像应用的潜力.

    主要方法:

    • 在ID19光束线上使用X射线多投影成像 (XMPI) (ESRF,法国).
    • 以每秒1000的速度,每次投影有8微米的分辨率,对融的3D动态进行了成像.
    • 进行了高达每秒3000的仪器仪表测试.

    主要成果:

    • 成功地以1000fps的速度捕捉了融的3D动态.
    • 证明了检测器的全部动态范围被利用了.
    • 仪器测试证实了更高率的潜力.

    结论:

    • XMPI是一种有前途的技术,用于动态过程的高速,无旋转的3D成像.
    • 该方法适用于光学不透明的样品,包括经历相变的材料.
    • 对于与下一代同步光源集成,XMPI处于有利位置.