Three-Dimensional Ultrasonic Tomographic Microscopy

开发扫描层析声学成像系统的必要研究 显微镜（STAM）检查。 长期目标是 这项工作是开发一个实用的原型，完全能够 提供结构的明确的横截面图像 在宏观三维物体的表面之下。 一 主要任务是使用现有显微镜的部件， 扫描激光声学显微镜（SLAM），在合成STAM。 根据我们以往的经验，这项研究将从以下方面开始： 机械地修改现有的STAM系统。 它的几何形状 因此它将使用固定的多换能器系统 这将提高其获取精确数据的能力。 一旦完成这项工作，我们将制定和测试必要的 新的重建算法，并进行其他阶段的 仍需开展工作，以充分完成长期目标。

Research necessary to develop a scanning tomographic acoustic microscope (STAM) will be conducted. The long-range objective of this work is to develop a practical prototype, fully capable of providing unambiguous cross-sectional images of the structure beneath the surface of macroscopic three-dimensional objects. A principal task is to employ parts from an existing microscope, the scanning laser acoustic microscope (SLAM), in synthesizing STAM. Building on our previous experience, this research will start by mechanically modifying the present STAM system. Its geometry would be altered so that it would use a fixed multi-transducer system which would improve its capability for acquiring precise data. Once this has been done, we will formulate and test the necessary new reconstruction algorithms and carry out other phases of the work still needed to fully complete the long-range objective.