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相关概念视频

X-ray Imaging01:24

X-ray Imaging

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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一个快速的X射线快门,用于高功率光束.

Thierry Lachat1, Benedikt Rösner1, Ana Diaz1

  • 1Paul Scherrer Institute, PSI Center for Photon Science, Forschungsstrasse 111, 5232 Villigen PSI, Switzerland.

Journal of synchrotron radiation
|February 18, 2026
PubMed
概括

对于高功率的X射线束来说,一种新的 piezo-actuated 快门系统在2ms内运行. 这种先进的快门器可确保在同步电源的高热负荷下安全运行,最大限度地减少辐射损伤.

科学领域:

  • 材料科学 材料科学 材料科学
  • 机械工程 机械工程
  • 物理 物理学 物理

背景情况:

  • 第四代同步电源产生高功率的X射线束.
  • 像多层单色光学器这样的光学产生的高热负荷给操作带来了挑战.
  • 现有的快门系统可能无法满足先进的同步仪应用的需求.

研究的目的:

  • 开发一种用于高功率宽带X射线束的压力触发式快门系统.
  • 为了使第四代同步电源能够安全有效地运行.
  • 为了促进高通量扫描和成像技术.

主要方法:

  • 基于曲的机械设计的开发.
  • 集成高效的水冷却,用于热管理.
  • 用于毫秒尺度的开闭过渡的皮埃佐启动.

主要成果:

  • 在2毫秒内实现完整的开闭过渡.
  • 成功承受了超过20瓦的连续热负荷.
  • 在现实条件下验证了超高真空兼容性和性能.

结论:

关键词:
灯光线仪器仪表仪器仪表快速的X射线快门快门压式百叶窗 百叶窗 百叶窗

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  • 开发的快门系统适用于高功率的X射线应用.
  • 它的快速启动和耐热性使辐射损伤最小化.
  • 能够使用先进的技术,如图解学,断层学和蛋白质结晶学.