Image accumulation, storage, and display system for a scanning transmission electron microscope

Autor:	J. W. Wiggins, J. A. Zubin
Rok vydání:	1980
Předmět:	Pixel Computer science law Computer graphics (images) Interface (computing) Scanning transmission electron microscopy Magnetic tape Image processing Instrumentation Grayscale Direct memory access law.invention Display device
Zdroj:	Review of Scientific Instruments. 51:123-131
ISSN:	1089-7623 0034-6748
DOI:	10.1063/1.1136039
Popis:	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 μs. 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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d3a9fec0035dc5d70a19d2e6cb9912db https://doi.org/10.1063/1.1136039 Zobrazit plný text záznamu