Spatial Coherence Effect Tomography for Biological Structural Analysis

9361730 Aye POC提出了一种全新的断层扫描方法，在这种方法中，三维物体的记录和重建在二维切片中自动完成，无需重要的计算机辅助，具有非常高的空间分辨率。这个新过程是基于减少相干干涉测量，将被称为空间相干效应层析成像（SCET）。SCET克服了经典全息和层析成像方法的局限性。以前对三维断层成像的尝试通常涉及二维投影图像，并且大量使用计算机进行数据处理和显示，从而降低了空间分辨率。虽然全息成像可以提供高分辨率，但它缺乏固有的层析解释。所提出的方法是基于使用极短时间相干长度的辐射的全息记录，这可以克服使用此类源（例如x射线激光器）的技术的主要缺点，同时仍然保留断层摄影和全息摄影的优点。此外，该方法简单有效，因为它可以在一次记录中提供连续的高（空间）分辨率的目标切片图像。这种新系统将为生物结构分析和其他非破坏性评估（NDE）应用提供低成本、高分辨率的层析成像。＊＊＊

9361730 Aye POC proposes an entirely new approach to tomography in which recording and reconstruction of the 3-D object is done in 2-D slices automatically, without significant computer assistance and with very high spatial resolution. This new process is based on reduced coherence interferometry and will be called Spatial Coherence Effect Tomography (SCET). SCET overcomes the limitations of both classical holographic and tomographic approaches. Previous attempts at 3-D tomographic imaging usually involved 2-D projection images and the heavy use of computers for data processing and display, thus reducing spatial resolution. Although holographic imaging can provide high resolution, it lacks an intrinsic tomographic interpretation. The proposed method is based on holographic recording using radiation with very short temporal coherence length which can overcome major drawbacks in techniques using such sources, e.g., x-ray lasers, while still preserving the advantages of both tomography and holography. Moreover, the method is simple and efficient because it can provide a continuum of high (spatial) resolution images of object slices in a single recording. This new system will produce low-cost, high-resolution tomographic imaging for biological structural analysis as well as other non-destructive-evaluation (NDE) applications. ***