Abstract
Preliminary results of development and testing of prototype compact mass spectrometer on permanent magnets are presented. The feature of the mass spectrometer is the ability to record mass spectra by mass scanning due to partial shunting of a magnetic flux in the gap of the mass analyzer. Ion-optical scheme of the mass analyzer has an ions deflection angle φ m = 120° and the radius of the central trajectory r m = 60 mm. The device can record mass range from 11 to 23 amu, with the accelerating voltage of 1 kV and the resolution of about 200. Inner volume of the mass analyzer chamber with the ion pump is about 500 cm3. Dimensions of the mass spectrometer together with electronic unit (height/length/width)—230 × 450 × 450 mm. The power consumption is not exceeding 60 W, in standby mode (the mode to maintain a high vacuum) is less than 10 W. The weight is 30 kg. The mass spectrometer is designed for educational purposes, however, it can be used as the basis to develop devices for isotopic analysis of the light chemical elements in medicine, geology, agricultural chemistry.
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Original Russian Text © O.V. Zaporozhets, V.F. Shkurdoda, O.N. Peregudov, V.K. Zaporozhets, 2010, published in Pribory i Tekhnika Eksperimenta, 2010, No. 5, pp. 103–108.
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Zaporozhets, O.V., Shkurdoda, V.F., Peregudov, O.N. et al. Compact mass spectrometer on permanent magnets. Instrum Exp Tech 53, 718–722 (2010). https://doi.org/10.1134/S0020441210050180
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DOI: https://doi.org/10.1134/S0020441210050180