HIGH RESOLUTION IMAGING DETECTOR FOR TEM

透射电子图象记录技术的发展 科学、方便和经济是显微镜发展的动力 因素现有检测器（例如CCD）具有局限性，包括 动态范围不足、固有噪底高以及困难 在推动图像分辨率超过1000 × 1000像素， 限制其应用。我们设计了一个创新的概念， 楔对楔（WoW）探测器，它有可能大大减少 这些限制，从而促进生命科学的进步。 该检测器的上级在于具有非常大的动态范围， 极低的本底噪声，分辨率可能超过 4000 × 4000像素。魔兽世界探测器在许多其他领域也有潜力。 成像和电子光谱应用。 在第一阶段，我们将调查获得1000 x 1000的要求 分辨率在一个单一的WoW阳极，考虑电子问题， 定位多阳极阵列中的阳极之间的命中，并执行 开发低成本、高速电子产品的调查研究， 支持探测器。第一阶段的成功将导致在 第二阶段的工作4x4原型阵列能够处理超过6 x每秒10（7）个计数。 建议的商业应用：主要应用将是 高分辨率、高速TEM成像探测器。其他应用 可以在任何使用微通道板形成电子的地方找到 图像，包括各种电子光谱仪、x射线探测器等。

Developments in electronic image recording for transmission electron microscopy are motivated by scientific, convenience, and economic factors. Existing detectors (e.g. CCDs) have limitations including insufficient dynamic range, a high inherent noise floor, and difficulties in pushing the image resolution beyond 1000 by 1000 pixels, which constrain their application. We have devised an innovative concept, the wedge-on-wedge (WoW) detector, which has the potential to greatly reduce these limitations and thereby facilitate progress in the life sciences. This detector is superior in having a very a large dynamic range, an extremely low noise floor, and the potential for resolutions exceeding 4000 by 4000 pixels. The WoW detector also has potential in many other imaging and electron spectroscopy applications. In Phase I we will investigate the requirements for obtaining 1000 x 1000 resolution in a single WoW anode, consider the electronics issues in locating hits between anodes in a multi-anode array, and carry out investigatory research in developing low cost, high speed electronics to support the detector. Success in Phase I would lead to construction in Phase II of a working 4 x 4 prototype array capable of handling over 6 x 10(7) counts per second. PROPOSED COMMERCIAL APPLICATION: The principal application would be as a high resolution, high speed TEM imaging detector. Other applications could be found wherever microchannel plates are used to form electron images, including various electron spectrometers, x-ray detectors, etc.