Advanced x-ray imaging and computed tomography

先进的 X 射线成像和计算机断层扫描

• 批准号: 8746579
• 负责人: HAN WEN
• 金额: $ 113.72万
• 依托单位: NATIONAL HEART, LUNG, AND BLOOD INSTITUTE
• 依托单位国家: 美国
• 资助国家: 美国
• 起止时间: 至
• 项目状态: 未结题
• 来源: https://reporter.nih.gov/project-details/8746579
• 关键词: Arteries; Collimator; Development; Dose; Goals; Image; Laboratories; Magnetic Resonance Imaging; Microscopic; Molecular; Pathology; Radiation; Resolution; Source; Structure; System; Techniques; Technology; X-Ray Computed Tomography; base; bioimaging; clinical application; heart function; interest; pre-clinical; water diffusion

This year, under this project we developed a new form of x-ray imaging system capable of detecting the refractive bending of x-rays at sub-nanoradian resolution. It is based on the nanometric x-ray gratings we have developed in the recent past. This type of imager can potentially see structures that are transparent to conventional x-ray machines. In the past such sensitivity has been achieved with special x-ray sources of very narrow bandwidths. With the new system the restrictions on the bandwidth and collimation of the x-ray beam are removed, which advances the concept towards compact systems for benchtop pre-clinical applications.

今年，在该项目下，我们开发了一种新形式的X射线成像系统，能够以亚纳米分辨率检测X射线的折射弯曲。它是基于我们最近开发的纳米X射线光栅。这种类型的成像仪可以潜在地看到对传统X射线机透明的结构。在过去，这样的灵敏度已经实现了非常窄的带宽的特殊X射线源。新系统消除了对X射线束的带宽和准直的限制，这将概念推向了台式临床前应用的紧凑系统。