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Image accumulation, storage, and display system for a scanning transmission electron mi...
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Image accumulation, storage, and display system for a scanning transmission electron microscope
作者:
J. A. Zubin,
J. W. Wiggins,
期刊:
Review of Scientific Instruments
(AIP Available online 1980)
卷期:
Volume 51,
issue 1
页码: 123-131
ISSN:0034-6748
年代: 1980
DOI:10.1063/1.1136039
出版商: AIP
数据来源: AIP
摘要:
This paper describes a high resolution scanning transmission electron microscope data collection, storage, and display system. Included are a novel analog‐to‐digital converter, a digital hardware divider, a direct memory access interface to a PDP 11/20, a flicker‐free gray scale TV display, two new gray scale hardcopy devices, and a software description of the system. The system described here accepts three 8‐bit channels of image data from a single picture element every 30 &mgr;s. Each picture element intensity is measured simultaneously by three detectors. Scans of 64, 128, 256, or 512 lines of picture elements are provided. All the data are stored on one of eight disk files, and one of the three simultaneous data channels is displayed on a digitally refreshed TV screen in real time. Production of hard‐copy images and magnetic tape images, and other manipulations of the data are provided after data accumulation is terminated.
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