Three-Dimensional Ultrasonic Tomographic Microscopy

研究必要的发展扫描层析声显微镜（STAM）将进行。这项工作的长期目标是开发一个实用的原型，完全能够提供宏观三维物体表面下结构的明确横截面图像。一项主要任务是利用现有显微镜的部件，扫描激光声学显微镜（SLAM），来合成STAM。基于我们以前的经验，本研究将从机械地修改目前的STAM系统开始。它的几何形状将被改变，这样它将使用一个固定的多传感器系统，这将提高它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重建算法，并开展为完全完成长期目标仍需进行的其他阶段的工作。

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.