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Progress in Plasma Processing of Materials, 1999

ISBN:
1-56700-126-2 (Print)

HYPERBOLOID MASS SPECTROMETER WITH ONE-DIMENSIONAL ION SORTING FOR DIAGNOSTICS OF A PLASMA

Evgeniy V. Mamontov
Ryazan State Radiotechnical University 391000 Ryazan Aveue Gagarina 59/1 Russia

Abstract

A new hyperboloid mass spectrometer with ion separation along one axis was examined. The electrode system consists of two electrodes, each of these has accurately machined hyperbolic internal surfaces, with a shielding electrode. An impulse signal is used, which provides phase ion injection into a field free volume of the analyser. An estimated trapping coefficient of analysed ions and a sorting rate predict high efficiency of the suggested separation method and its capabilities. The achieved mass resolution is about 103.