Measuring Systems with Detector/Multichannel Analyser/Microcomputer

The measuring systems with scintillation detector/multichannel analyser/microcomputer on a modified type МИ1301 mass spectrometer are reported inthe pressnt paper. The scintillation detector consists of a vaccum house, a de-vice measuring ion current and a device measuring pulse-counts. The detectoris combined with FH-451 1024 multi-channel analyser/EMG666 microcomputer.The detected effeciency, pulse height distibution and other performances ofthe systems have been determined. The isotopic abundance for ~(85)Rb/~(87)Rb is2.596±0.003 without mass discrimination by the systems.