Practical Low-Cost High-Resolution Gamma Ray Sensor

描述(由申请人提供)： 建议将标准商用CZT晶体和ASIC与Agua Technologies专有的高密度CZT探测器键合方法和非常密集的电子封装能力相结合，以开发高分辨率(小于1 mm像素间距)的成像CZT伽马探测器。其目的是使拟议的探测器模块能够以相对便宜的价格大量生产。拟议的探测器模块将包括一个高密度传感器封装中的单个19.6x19.6x5 mm CZT晶体，其中将包括四个ASIC读出芯片。晶体将被分割成512个阳极。像素间距约为850亩，街道面积为50亩，边界面积为100亩。读出的ASIC芯片安装在转接卡上，转接卡的一侧被倒装芯片连接到CZT阵列，另一侧被连接到阵列连接器。拟议中的探测器及其四个读出ASIC将被组装成小型、独立的模块，这些模块可以插入主板上的插座阵列，以创建一个大型平铺传感器阵列，它们之间没有死区。 一个中心计划目标是制造并交付给小动物伽马射线成像领域的研究人员全功能探测器模块和测试板，以将探测器集成到功能成像系统中。

DESCRIPTION (provided by applicant): Propose to combine standard commercial CZT crystals and ASICS with Aguila Technologies' proprietary high-density CZT detector bonding methods and very dense electronic packaging capability to develop high resolution (less than 1 mm pixel pitch) imaging CZT gamma detectors. The aim is that the proposed detector modules could be manufactured in large quantities relatively inexpensively. The proposed detector module will comprise a single 19.6 x 19.6 x 5-mm CZT crystal in a high-density sensor package that will include four ASIC readout chips. The crystals will be partitioned into 512 anodes. Pixel pitch will be about 850-mu m, with 50-mu m streets and a 100-mu m border. The readout ASIC chips are mounted on an interposer card that is, in-turn, flip-chip bonded to the CZT array on one side and an array connector on the other. The proposed detector with its four readout ASICs will be assembled into small, self-contained modules that can be plugged into an array of sockets on a motherboard to create a large tiled array of sensors with no dead space between them. A central program objective is to fabricate and deliver to investigators in the field of small animal gamma ray imaging fully functional detector modules and test boards to integrate the detectors into functional imaging systems.