SU940259A1 - Device for processing electron-microscopic information - Google Patents

Description

one

The invention relates to electron microscopy and can be used for carrying out quantitative machine analysis of objects, for example biological. .

A device for information processing is known, comprising an electron detector, a pulse shaper and a sweep generator with an independent synchronization system flj.

In this device, the electronic image is realized in the analog format, which reduces the accuracy of the analysis and does not allow the use of electronic computers (. COMPUTER) with a limited j valuable memory space.

The closest to the present invention is a device for processing an inn (1x memory, containing an electron detector, a pulse shaper, a counting-20 but a storage unit, and a digital sweep generator connected to a control electronic computing unit.

2

With such a processing scheme, the accuracy is increased, however, the injection () function for each raster element can be received only after a control signal is issued to the scanning system. At the same time, the cost and pre-processing of insights required a relatively long time, which may exceed the (achieved) allowable in the study of biological objects, and also requires a significant amount of RAM in the control program.

The purpose of the invention is to reduce the processing time while reducing the amount of memory.

This goal is achieved by the fact that a device for processing electron microscopic information, comprising an electron detector, a pulse shaper, a counting memory unit, and a digital scan generator connected to a control electronic computing unit. 39 is equipped with a synchronization generator connected between a digital sweep generator and a control unit and connected to a counting memory unit connected to the control unit. The drawing shows a block diagram of the device. Electron microscope 1 contains a deflecting system 2 and an electron detector 3, which is included in an information processing device, containing a digital scan generator, a synchronizing generator 5 connected with a counting memory unit 6 and a control electronic computing unit 7- Between detector 3 and counting unit 6 included shaper 8 pulses. The device works as follows. The frequency signal formed by the detector 3 and shaper 8 pulses is fed to a counting memory unit 6, controlled by a synchronization generator 5 which is one. temporarily synchronizes the operation of the generator i of the digital sweeps and the control electronic computing unit 7, which starts or stops the synchronization system on the basis of the fill signals of the selected memory array. After stopping in the control electronic calculator, the telephony unit 7 is used to overwrite the information in the external memory. 9 Thus, the use of the device according to the invention makes it possible to shorten the time for retrieving and processing information by a factor of 10 to 10 and at the same time using computers with any RAM size with high accuracy of electron-microscopic image conversion. Claims An electron microscopic information processing apparatus comprising an electron detector, a pulse shaper, a counting memory unit and a digital scanning generator connected to a control electronic computing unit, so as to reduce the processing time when decreasing volume of memory, it is equipped with a synchronization generator connected between the digital sweep generator and the control unit and connected to the counting memory unit connected to yuschim unit. Sources of information taken into account during the examination 1. USSR author's certificate YY 399937, cl. H 01 J 37/26, 1971. 2. Shulman A.R., Fridrikov S.A. Secondary emission solid state methods. I., Science, 1977, p. 512-515 (prototype).

Claims (1)

Claim A device for processing electron microscopic information containing an electron detector, forming a control electronic computing unit 7 “Between the detector 3 and the memory unit 6, a pulse shaper 8 is included. The device operates as follows 2 times. The frequency signal formed by the detector 3 and the pulse shaper 8 is fed to a memory block 6 controlled by a synchronizing generator 5, which is single. temporarily synchronizes the operation of the generator 4 of digital scans and the control electronic computing unit 7, which starts or stops the synchronization system by the signals of filling the allocated array of RAM. After a stop in the control of electron-Comput s ate bodies prefecture unit 7 is performed dubbing, _e invariant formations into the external memory. a pulse arrester, a counting and storage unit and a digital scan generator connected to a control electronic computing unit, characterized in that, in order to reduce processing time while reducing memory, it is equipped with a synchronization generator connected between the digital scan generator and the control unit and connected with a memory unit connected to the control unit.