COMPOSITE TRANSDUCERS FOR MEDICAL ULTRASONICS

这个多学科协作计划的目标是生产 用于医学成像的换能器具有更低的插入损耗、更宽的范围 带宽、更好的平面外分辨率和更大的景深 目前可用。我们实现这些目标的方法是设计 用新型铁电材料和新型复合材料构建换能器 设计。新型铁电材料的发展，它们的结构 将实现对它们的成像能力的评估 利用五个小组的联合专业知识，Mayo超声波研究 霍尼韦尔陶瓷中心实验室(咨询陶瓷工艺 系统公司)和Echo超声波(咨询教授 在宾夕法尼亚州立大学)。此团队方法旨在增加提要 后退，优化创新效率，缩短见效时间 以供成像社区使用。陶瓷中心将 生产新型压电陶瓷，如弛豫铁电体和 具有理想的医学成像性能的反铁电体 换能器。回声超声将把这些特殊的陶瓷加工成 用于医学成像的具有最佳特性的复合换能器。 梅奥超声波小组将测试该设备的成像能力 由此产生的换能器，设计和研究产生 无衍射光，并指导和协调团队的努力 及时公开披露结果的保证是这样一个事实，即 首席调查员在学术环境中。 这一计划为美国国立卫生研究院提供了一个将 否则通常不会在设计和设计上进行合作的专家 用于医学成像的超声换能器的构建。

The goal of this multidisciplinary collaborative program is to produce transducers for medical imaging that have lower insertion loss, broader bandwidth, better out-of-plane resolution, and greater depth of field than currently available. Our approach to achieving these goals is to design and construct transducers using novel ferroelectrics and new composite designs. Development of new ferroelectrics, their construction into composites, and evaluation of their imaging capabilities will be achieved using the combined expertise of five groups, Mayo Ultrasound Research Laboratory, Honeywell Ceramics Center (consulting with Ceramic Process System Corporation), and Echo ultrasound (in consultation with a professor at Penn State University). This team approach is devised to increase feed back, optimize efficiency of innovation, and shorten the time for results to become available to the imaging community. The Ceramics Center will produce novel piezoceramics such as relaxor ferroelectrics and antiferroelectrics which have desirable properties for medical imaging transducers. Echo Ultrasound will fabricate these special ceramics into composite transducers with optimal characteristics for medical imaging. The Mayo ultrasound group will test the imaging capabilities of the resulting transducers, design and investigate new transducers that produce nondiffracting beams, and guide and coordinate the efforts of the team Timely public disclosure of the results is assured by the fact that the principal investigator is in an academic environment. This program represents an opportunity for NIH to bring together experts who otherwise would not ordinarily collaborate on the design and construction of ultrasonic transducers for medical imaging.