Abstract

A facility for electron microscope image analysis and interpretation has been established at the National Center for Electron Microscopy (NCEM) as a support for the electron microscopes. The main component of the facility is a computer system designed to assist the experimenter in both “real time” and post-recording image analysis. Real-time includes operator-controlled enhancement of the video-rate TV signal coming from the microscope, and the presentation of diffractograms as required by the microscope operator. Post-recording analysis includes post-processing of the experimental image as well as image simulation from model structures. Our chosen system is based on two host computers (Fig. 1): one host controls the post-recording workstations and the other runs the real-time stations. MicroVAX II minicomputers running the VMS operating system were chosen for both the main and real time hosts because the VMS system is multi-user and has virtual memory capability; in addition, it is the operating system most familiar to outside users of the facility.

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