ELECTRON, ION, OPTICAL, ACOUSTIC, SONAR AND RADIO WAVE IMAGING SYSTEMS FOR CHARACTERIZING ADVANCED MATERIALS AND MATTER

用于表征先进材料和物质的电子、离子、光学、声学、声纳和无线电波成像系统

• 批准号: RGPIN-2017-03805
• 负责人: Herring, Rodney
• 金额: $ 1.6万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=709709
• 关键词: ELECTRON; ION; OPTICAL; ACOUSTIC; SONAR

This application involves a research program focused on constructing new types of imaging devices and developing their associated methods of imaging to be used to make new measurements of the properties of objects that target climate change, medical imaging and advanced materials technology. Two engineering challenges require funding for the successful development of these imaging devices, a new type of phase array detector and the determination of the transfer function of the imaged objects. The imaging devices requiring the phase array detectors and object transfer functions include a confocal scanning laser holography (CSLH) microscope to make non-invasive, three dimensional (3D) phase images of the 3D temperature distribution within liquids required for mass and heat transfer studies; a scanning transmission electron holography microscope (STEHM) to make phase images of material nanostructures necessary to gain insights into their properties for climate change, quantum computing and atomic specimen manipulations; a recently installed scanning transmission ion microscope (STIM); an imager of the Earth's atmosphere, the software Defined Radio (SDR) Earth Atmosphere Imager, targeted to measure the properties of the Earth's atmosphere such as its power, energy and mass transport as well as its 3D temperature, pressure and composition from the surface of the Earth to the Earth's ionization layer(s); a Software Defined Sonar (SDS) Ocean Imager targeted to measure the energy and mass transport of the upper layers of the ocean as well as their 3D temperature, pressure and composition from the water/air interface to its thermoclines and a Diffuse Acoustic Confocal Imager (DACI) targeted for routine prostate and ovarian examinations with the potential to image, diagnose, treat diseased tissue and monitor the treatment process. The new type of detector uses a vector network analyzer (VNA) for producing phase images of the objects. Currently each pixel making up the phase image requires its own VNA, which is very expensive and too slow for most applications. Required is a phase multiplexing scheme, which doesn't exist yet, to use just one or a few VNAs instead of hundreds or thousands. A multiplexer is a device that selects one of several input signals and forwards the selected input into a single line used to increase the amount of data that can be sent over the network within a certain amount of time and bandwidth. The purpose of determining the transfer function of the imaged objects is to analyze and thus measure the properties of the imaged objects. Phase images produced by these devices are preferred over amplitude images as they contain the information of the object's property(ies). A brief description of these imaging systems, their applications, significance, multiplexing and transfer function needs are provided in the grant proposal.

该应用涉及一项研究计划，重点是构建新型成像设备，并开发相关的成像方法，用于对针对气候变化、医学成像和先进材料技术的物体的特性进行新的测量。两个工程上的挑战需要资金来成功开发这些成像设备，一种新型的相控阵探测器和确定成像物体的传递函数。需要相位阵列检测器和对象传递函数的成像装置包括共焦扫描激光全息（CSLH）显微镜，以制作质量和热传递研究所需的液体内的3D温度分布的非侵入性三维（3D）相位图像;扫描透射电子全息显微镜（STEHM）制作材料纳米结构的相位图像，以便深入了解它们在气候变化、量子计算和原子样品操作方面的特性;最近安装的扫描透射离子显微镜;地球大气层成像仪，软件定义无线电（SDR）地球大气层成像仪，旨在测量地球大气层的属性，如其功率，能量和质量传输以及从地球表面到地球电离层的3D温度，压力和成分;软件定义声纳（SDS）海洋成像仪，用于测量海洋上层的能量和质量传输以及它们的3D温度，从水/空气界面到其温跃层的压力和成分以及漫射声学共焦成像仪（DACI）针对常规前列腺和卵巢检查，具有成像、诊断、治疗病变组织和监测治疗过程的潜力。 这种新型的探测器使用矢量网络分析仪（VNA）来产生物体的相位图像。目前，组成相位图像的每个像素都需要自己的VNA，这对于大多数应用来说非常昂贵且速度太慢。所需的是相位复用方案，这还不存在，使用一个或几个VNA，而不是数百或数千。多路复用器是一种选择多个输入信号之一并将所选输入转发到单线的设备，用于增加在一定时间和带宽内可以通过网络发送的数据量。确定成像对象的传递函数的目的是分析并因此测量成像对象的特性。由这些设备产生的相位图像优于幅度图像，因为它们包含对象的属性的信息。这些成像系统的简要说明，其应用，意义，多路复用和传递函数的需求提供的资助建议。